> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sglang.io/llms.txt
> Use this file to discover all available pages before exploring further.

# DeepSeek-V4.1

> Deploy DeepSeek-V4.1 Flash with SGLang — launch recipes, feature compatibility, and tuning notes for GB300, H200, B200, B300 and MI350X.

export const Playground = ({config}) => {
  if (!config) {
    return <div style={{
      padding: 12,
      color: "#b91c1c"
    }}>Playground: missing <code>config</code> prop</div>;
  }
  const DIMENSIONS = ["hw", ...(config.matchDims || [{
    id: "variant"
  }, {
    id: "quant"
  }, {
    id: "strategy"
  }, {
    id: "nodes"
  }]).map(d => d.id)];
  const optionVisible = (opt, sel) => typeof opt.showWhen !== "function" || opt.showWhen(sel);
  const optionDisabled = (opt, sel) => typeof opt.disabled === "function" ? opt.disabled(sel) : !!opt.disabled;
  const visibleOptions = (spec, sel) => (spec.options || []).filter(o => optionVisible(o, sel));
  const rowVisible = (spec, sel) => (typeof spec.showWhen !== "function" || spec.showWhen(sel)) && visibleOptions(spec, sel).length > 0;
  const overlayPick = sel => {
    const picked = [];
    for (const spec of config.overlayDims || []) {
      if (!rowVisible(spec, sel)) continue;
      const opt = (spec.options || []).find(o => o.id === sel[spec.id]);
      if (opt && !optionDisabled(opt, sel)) picked.push(opt);
    }
    return picked;
  };
  const overlayPart = (sel, key) => {
    const out = [];
    for (const opt of overlayPick(sel)) {
      const add = typeof opt[key] === "function" ? opt[key](sel) : opt[key];
      if (add) out.push(...add);
    }
    return out;
  };
  const overlayCompose = (cellFlags, sel) => {
    const strip = overlayPart(sel, "stripPrefixes");
    const add = overlayPart(sel, "flags");
    if (!strip.length) return [...cellFlags || [], ...add];
    const used = new Set();
    const replacementsFor = tok => {
      const out = [];
      add.forEach((f, i) => {
        if (used.has(i) || f.split(/[\s=]/)[0] !== tok) return;
        used.add(i);
        out.push(f);
      });
      return out;
    };
    const out = [];
    for (const f of cellFlags || []) {
      const tok = f.split(/[\s=]/)[0];
      if (!strip.includes(tok)) out.push(f); else out.push(...replacementsFor(tok));
    }
    add.forEach((f, i) => {
      if (!used.has(i)) out.push(f);
    });
    return out;
  };
  const withOverlay = (cell, sel) => cell && ({
    ...cell,
    flags: overlayCompose(cell.flags, sel),
    env: [...cell.env || [], ...overlayPart(sel, "env")]
  }) || cell;
  const STORAGE_KEY = "sglang-deploy-env";
  const DEPLOYMENT_COMPONENT_ID = "deployment-configurator";
  const pgFeatures = config.playgroundFeatures || ({});
  const PD_PORTS = {
    prefill: {
      serve: 30000,
      dist: 30335
    },
    decode: {
      serve: 30100,
      dist: 30435
    }
  };
  const findCell = (cells, sel) => cells.find(c => DIMENSIONS.every(d => c.match[d] === sel[d]));
  const findMatchingCell = (cells, sel, pgEnv, pgFlags) => {
    const fixedDims = DIMENSIONS.filter(d => d !== "strategy");
    const flagsEq = (a, b) => a.length === b.length && a.every((x, i) => x === b[i]);
    const envEq = (a, b) => {
      if (a.length !== b.length) return false;
      const set = new Set(a);
      for (const x of b) if (!set.has(x)) return false;
      return true;
    };
    for (const c of cells) {
      if (fixedDims.some(d => c.match[d] !== sel[d])) continue;
      if (flagsEq(c.flags || [], pgFlags || []) && envEq(c.env || [], pgEnv || [])) {
        return c;
      }
    }
    return null;
  };
  const resolveModelName = sel => {
    const keys = [`${sel.hw}|${sel.variant}|${sel.quant}`, `${sel.variant}|${sel.quant}`, `${sel.hw}|${sel.quant}`, sel.quant, sel.hw, "default"];
    for (const k of keys) {
      const hit = config.modelNames[k];
      if (hit) return hit;
    }
    return "";
  };
  const interpolate = (text, env, modelName) => text.replace(/{{(\w+)}}/g, (_, key) => key === "MODEL_NAME" ? modelName : env[key] ?? `{{${key}}}`);
  const parseNnodes = id => {
    if (id === "single") return 1;
    const m = (/^multi-(\d+)$/).exec(id);
    return m ? parseInt(m[1], 10) : 1;
  };
  const placeholderDefaults = schema => {
    const out = {};
    for (const [k, v] of Object.entries(schema || ({}))) out[k] = v.default ?? "";
    return out;
  };
  const matchConstraint = (base, constraint) => {
    if (!constraint || typeof constraint !== "object") return false;
    const entries = Object.entries(constraint);
    if (entries.length === 0) return false;
    return entries.every(([k, vs]) => Array.isArray(vs) && vs.includes(base[k]));
  };
  const evaluateChip = (entry, base) => {
    if (entry === null || typeof entry !== "object") {
      return {
        value: entry,
        label: undefined,
        hidden: false,
        disabled: false,
        disableReason: ""
      };
    }
    const hidden = entry.hide ? matchConstraint(base, entry.hide) : false;
    let disabled = entry.disabled === true || entry.disable === true;
    let disableReason = typeof entry.disableReason === "function" ? entry.disableReason(base) : entry.disableReason || "";
    if (!disabled && entry.disable && typeof entry.disable === "object") {
      if (Array.isArray(entry.disable)) {
        for (const item of entry.disable) {
          const cond = item && item.when || item;
          if (matchConstraint(base, cond)) {
            disabled = true;
            if (item && item.reason) disableReason = item.reason;
            break;
          }
        }
      } else {
        disabled = matchConstraint(base, entry.disable);
      }
    }
    return {
      ...entry,
      value: entry.id !== undefined ? entry.id : entry.value,
      label: entry.label,
      hidden,
      disabled,
      disableReason
    };
  };
  const findEntry = (entries, picked) => {
    for (const e of entries || []) {
      const v = e === null || typeof e !== "object" ? e : e.id !== undefined ? e.id : e.value;
      if (v === picked) return e;
    }
    return null;
  };
  const isHidden = (entries, picked, base) => {
    const e = findEntry(entries, picked);
    if (e === null || e === undefined) return false;
    return evaluateChip(e, base).hidden;
  };
  const stripFlagsByFirstToken = (flags, prefixes) => {
    const set = new Set(prefixes);
    return flags.filter(f => !set.has(f.split(/[\s=]/)[0]));
  };
  const stripEnvByPrefix = (envList, prefixes) => {
    if (!prefixes || !prefixes.length) return envList;
    const set = new Set(prefixes);
    return envList.filter(e => !set.has(e.split("=")[0]));
  };
  const insertBeforeTail = (flags, additions) => {
    const idx = flags.findIndex(f => f.startsWith("--host"));
    const at = idx === -1 ? flags.length : idx;
    const out = flags.slice();
    out.splice(at, 0, ...additions);
    return out;
  };
  const insertAfter = (flags, afterAnyOf, additions) => {
    let idx = -1;
    for (const anchor of afterAnyOf) {
      idx = flags.findIndex(f => f.split(/[\s=]/)[0] === anchor);
      if (idx !== -1) break;
    }
    if (idx === -1) idx = flags.findIndex(f => f.startsWith("--model-path"));
    const out = flags.slice();
    out.splice(idx + 1, 0, ...additions);
    return out;
  };
  const parseIntFlag = (flags, prefix) => {
    for (const f of flags || []) {
      if (f.split(/[\s=]/)[0] !== prefix) continue;
      const rest = f.slice(prefix.length).replace(/^[\s=]+/, "");
      const n = parseInt(rest, 10);
      if (!isNaN(n)) return n;
    }
    return null;
  };
  const hasFlag = (flags, name) => (flags || []).some(f => f.split(/[\s=]/)[0] === name);
  const findFlagArg = (flags, prefix) => {
    for (const f of flags || []) {
      if (f.split(/[\s=]/)[0] !== prefix) continue;
      const rest = f.slice(prefix.length).replace(/^[\s=]+/, "");
      return rest.length ? rest : null;
    }
    return null;
  };
  const TP_HEADS = ["--tp-size", "--tp", "--tensor-parallel-size"];
  const EP_HEADS = ["--ep-size", "--ep", "--expert-parallel-size"];
  const DP_HEADS = ["--dp-size", "--dp", "--data-parallel-size"];
  const parseIntFlagAny = (flags, heads) => {
    for (const head of heads) {
      const n = parseIntFlag(flags, head);
      if (n !== null) return n;
    }
    return null;
  };
  const flagSpelling = (flags, heads, fallback) => heads.find(head => (flags || []).some(f => f.split(/[\s=]/)[0] === head)) || fallback;
  const ANCHOR_NEAR_MODEL_PATH = ["--model-path"];
  const ANCHOR_NEAR_TP = ["--tp-size", "--tp", "--model-path"];
  const ANCHOR_NEAR_DP = ["--dp-size", "--dp", "--tp-size", "--tp", "--model-path"];
  const ANCHOR_NEAR_DPATTN = ["--enable-dp-attention", "--dp-size", "--dp", "--tp-size", "--tp", "--model-path"];
  const ANCHOR_NEAR_MOE = ["--moe-a2a-backend", "--moe-runner-backend", "--enable-dp-attention", "--dp-size", "--dp", "--tp-size", "--tp", "--model-path"];
  const helpers = {
    matchConstraint,
    evaluateChip,
    findEntry,
    isHidden,
    stripFlagsByFirstToken,
    stripEnvByPrefix,
    insertBeforeTail,
    insertAfter,
    parseIntFlag,
    hasFlag,
    findFlagArg,
    TP_HEADS,
    EP_HEADS,
    DP_HEADS,
    parseIntFlagAny,
    flagSpelling,
    ANCHOR_NEAR_MODEL_PATH,
    ANCHOR_NEAR_TP,
    ANCHOR_NEAR_DP,
    ANCHOR_NEAR_DPATTN,
    ANCHOR_NEAR_MOE
  };
  const CP_ENABLE_HEADS = ["--enable-prefill-cp", "--enable-nsa-prefill-context-parallel", "--enable-dsa-prefill-context-parallel", "--enable-prefill-context-parallel"];
  const CP_MODE_HEADS = ["--nsa-prefill-cp-mode", "--dsa-prefill-cp-mode", "--prefill-cp-mode"];
  const CP_OWNED_HEADS = [...CP_ENABLE_HEADS, ...CP_MODE_HEADS, "--cp-strategy", "--attn-cp-size"];
  const CP_MODE_TO_STRATEGY = {
    "in-seq-split": "zigzag",
    "round-robin-split": "interleave"
  };
  const cpEnabledIn = flags => CP_ENABLE_HEADS.some(head => hasFlag(flags, head));
  const bakedCpStrategy = flags => findFlagArg(flags, "--cp-strategy") || CP_MODE_TO_STRATEGY[findFlagArg(flags, "--nsa-prefill-cp-mode")] || CP_MODE_TO_STRATEGY[findFlagArg(flags, "--dsa-prefill-cp-mode")] || CP_MODE_TO_STRATEGY[findFlagArg(flags, "--prefill-cp-mode")] || null;
  const AXIS_HANDLERS = {
    attention: {
      initState: () => ({
        tp: null,
        cp: null,
        cpStrategy: null,
        dpAttn: null
      }),
      deriveFromBase: (cell, fc, h) => {
        const flags = cell && cell.flags || [];
        const dpVal = h.parseIntFlagAny(flags, h.DP_HEADS);
        const hasDpAttn = h.hasFlag(flags, "--enable-dp-attention");
        let dpAttn;
        if (dpVal !== null) dpAttn = dpVal; else if (hasDpAttn) dpAttn = 1; else dpAttn = false;
        const cpSize = h.parseIntFlag(flags, "--attn-cp-size");
        return {
          tp: h.parseIntFlagAny(flags, h.TP_HEADS),
          cp: cpEnabledIn(flags) ? cpSize !== null ? cpSize : 2 : null,
          cpStrategy: bakedCpStrategy(flags),
          dpAttn
        };
      },
      apply: ({flags, env, value, fc, sel, h}) => {
        const knobEntry = id => (fc.knobs || []).find(k => k.id === id) || ({});
        const factsNow = () => ({
          ...sel || ({}),
          dpAttnOn: h.hasFlag(flags, "--enable-dp-attention"),
          cpOn: cpEnabledIn(flags),
          cpStrategy: bakedCpStrategy(flags) || "interleave",
          effTp: h.parseIntFlagAny(flags, h.TP_HEADS)
        });
        const cpSizeTargetNow = () => {
          if (knobEntry("cp").freeSize) return null;
          const dpIntent = value.dpAttn !== null && value.dpAttn !== undefined ? value.dpAttn : h.hasFlag(flags, "--enable-dp-attention") ? h.parseIntFlagAny(flags, h.DP_HEADS) ?? 1 : false;
          if (typeof dpIntent === "number" && dpIntent > 1) return null;
          return h.parseIntFlagAny(flags, h.TP_HEADS);
        };
        const blocked = (id, v) => {
          const facts = factsNow();
          const kc = h.evaluateChip(knobEntry(id), facts);
          if (kc.hidden || kc.disabled) return true;
          if (id === "cp" && typeof v === "number" && v > 1) {
            const target = cpSizeTargetNow();
            if (target !== null && v !== target) return true;
          }
          const e = h.findEntry(knobEntry(id).values || [], v);
          return !!(e !== null && e !== undefined && h.evaluateChip(e, facts).disabled);
        };
        if (value.tp !== null && !blocked("tp", value.tp)) {
          const tpHead = h.flagSpelling(flags, h.TP_HEADS, "--tp");
          flags = h.stripFlagsByFirstToken(flags, h.TP_HEADS);
          flags = h.insertAfter(flags, h.ANCHOR_NEAR_MODEL_PATH, [`${tpHead} ${value.tp}`]);
        }
        const cpStrategyOverride = value.cpStrategy && !blocked("cpStrategy", value.cpStrategy) ? value.cpStrategy : null;
        const cpPick = value.cp !== null ? value.cp : cpStrategyOverride && cpEnabledIn(flags) ? h.parseIntFlag(flags, "--attn-cp-size") ?? 2 : null;
        const cpStrategyPick = cpStrategyOverride || bakedCpStrategy(flags) || "interleave";
        if (cpPick !== null && !blocked("cp", cpPick)) {
          flags = h.stripFlagsByFirstToken(flags, CP_OWNED_HEADS);
          if (cpPick > 1) {
            flags = h.insertAfter(flags, h.ANCHOR_NEAR_DPATTN, [`--attn-cp-size ${cpPick}`, "--enable-prefill-cp", `--cp-strategy ${cpStrategyPick}`]);
          }
        }
        if (value.dpAttn !== null && value.dpAttn !== undefined && !blocked("dpAttn", value.dpAttn)) {
          const dpHead = h.flagSpelling(flags, h.DP_HEADS, "--dp-size");
          flags = h.stripFlagsByFirstToken(flags, [...h.DP_HEADS, "--enable-dp-attention"]);
          if (typeof value.dpAttn === "number" && value.dpAttn > 0) {
            flags = h.insertAfter(flags, h.ANCHOR_NEAR_TP, [`${dpHead} ${value.dpAttn}`, "--enable-dp-attention"]);
          }
        }
        return {
          flags,
          env
        };
      },
      render: ({axisId, value, setValue, fc, base, s, h, renderSelect, derived}) => {
        const knobs = fc.knobs || [];
        if (!knobs.length) return null;
        const setKnob = (k, v) => setValue({
          ...value,
          [k]: v
        });
        const labelFor = knob => c => {
          if (c.label !== undefined) return c.label;
          if (knob.id === "dpAttn") {
            const labelMap = knob.labels || ({
              "auto": "Auto",
              "false": "Off"
            });
            const k = c.value === null ? "auto" : String(c.value);
            return labelMap[k] || k;
          }
          return c.value === null ? "Auto" : String(c.value);
        };
        const knobDisplay = knob => {
          const v = value[knob.id];
          if (v !== null && v !== undefined) return v;
          if (derived && derived[knob.id] !== undefined) return derived[knob.id];
          return null;
        };
        const hideNullFor = knob => {
          const d = derived ? derived[knob.id] : null;
          return d !== null && d !== undefined ? [null] : [];
        };
        const entriesFor = knob => {
          const vals = knob.values || [null];
          if (knob.id !== "cp" || knob.freeSize) return vals;
          const target = base.cpSizeTarget;
          if (target === null || target === undefined) return vals;
          return vals.map(entry => {
            const v = entry === null || typeof entry !== "object" ? entry : entry.id !== undefined ? entry.id : entry.value;
            if (typeof v !== "number" || v <= 1 || v === target) return entry;
            const wrapped = entry === null || typeof entry !== "object" ? {
              value: entry
            } : {
              ...entry
            };
            return {
              ...wrapped,
              disabled: true,
              disableReason: `SGLang derives the prefill-CP size as attn_cp_size = TP / DP-Attention (= ${target} here), so only that size can be enabled.`
            };
          });
        };
        return <div key={axisId} style={s.card}>
            <div style={s.compactRow}>
              <span style={s.axisTitle}>Attention</span>
              {knobs.map(knob => {
          const kc = h.evaluateChip(knob, base);
          if (kc.hidden) return null;
          return <span key={knob.id} style={s.field}>
                    <span style={s.fieldLabel}>{knob.label || knob.id.toUpperCase()}</span>
                    {renderSelect(knobDisplay(knob), entriesFor(knob), nv => setKnob(knob.id, nv), base, labelFor(knob), {
            hideValues: hideNullFor(knob),
            disabled: kc.disabled,
            disabledReason: kc.disableReason
          })}
                  </span>;
        })}
            </div>
          </div>;
      }
    },
    moe: {
      initState: () => ({
        backend: null,
        ep: null,
        mmQuant: null
      }),
      deriveFromBase: (cell, fc, h) => {
        const flags = cell && cell.flags || [];
        const a2a = h.findFlagArg(flags, "--moe-a2a-backend");
        const runner = h.findFlagArg(flags, "--moe-runner-backend");
        const w4a4 = h.hasFlag(flags, "--enable-w4a4-mxfp4-megamoe");
        return {
          backend: a2a || runner || null,
          ep: h.parseIntFlagAny(flags, h.EP_HEADS),
          mmQuant: w4a4 ? "w4a4" : "w4a8"
        };
      },
      apply: ({flags, env, value, fc, h, derived}) => {
        if (value.backend !== null) {
          flags = h.stripFlagsByFirstToken(flags, ["--moe-a2a-backend", "--moe-runner-backend"]);
          const backendEnvKeys = [];
          for (const o of fc.backend?.options || []) {
            for (const e of o.env || []) backendEnvKeys.push(e.split("=")[0]);
          }
          if (backendEnvKeys.length) env = h.stripEnvByPrefix(env, backendEnvKeys);
          const opt = (fc.backend?.options || []).find(o => o.id === value.backend);
          if (opt?.flags?.length) {
            flags = h.insertAfter(flags, h.ANCHOR_NEAR_DPATTN, opt.flags);
          }
          if (opt?.env?.length) env = [...env, ...opt.env];
        }
        const mq = fc.megamoeQuant;
        if (mq) {
          const quantKeys = [];
          const quantFlagHeads = [];
          for (const o of mq.options || []) {
            for (const e of o.env || []) quantKeys.push(e.split("=")[0]);
            for (const f of o.flags || []) quantFlagHeads.push(f.split(/[\s=]/)[0]);
          }
          flags = h.stripFlagsByFirstToken(flags, quantFlagHeads);
          const effBackend = value.backend !== null ? value.backend : derived && derived.backend;
          if (effBackend === "megamoe") {
            env = h.stripEnvByPrefix(env, [...mq.stripEnv || [], ...quantKeys]);
            const quant = value.mmQuant != null ? value.mmQuant : derived && derived.mmQuant || "w4a8";
            const opt = (mq.options || []).find(o => o.id === quant);
            if (opt?.flags?.length) {
              flags = h.insertAfter(flags, h.ANCHOR_NEAR_MOE, opt.flags);
            }
            if (opt?.env?.length) env = [...env, ...opt.env];
          } else if (value.backend !== null) {
            env = h.stripEnvByPrefix(env, quantKeys);
          }
        }
        if (value.ep !== null) {
          const epHead = h.flagSpelling(flags, h.EP_HEADS, "--ep");
          flags = h.stripFlagsByFirstToken(flags, h.EP_HEADS);
          if (value.ep > 1) {
            flags = h.insertAfter(flags, h.ANCHOR_NEAR_MOE, [`${epHead} ${value.ep}`]);
          }
        }
        return {
          flags,
          env
        };
      },
      render: ({axisId, value, setValue, fc, base, s, renderSelect, derived}) => {
        if (!fc.backend && !fc.ep) return null;
        const setSlot = (k, v) => setValue({
          ...value,
          [k]: v
        });
        const slotDisplay = k => {
          const v = value[k];
          if (v !== null && v !== undefined) return v;
          if (derived && derived[k] !== undefined) return derived[k];
          return null;
        };
        const hideNull = k => {
          const d = derived ? derived[k] : null;
          return d !== null && d !== undefined ? [null] : [];
        };
        const mmOpt = (fc.backend?.options || []).find(o => o.id === "megamoe");
        const mmAvail = !!mmOpt && (!mmOpt.requiresHw || mmOpt.requiresHw.includes(base.hw)) && (!mmOpt.excludesStrategy || !mmOpt.excludesStrategy.includes(base.strategy));
        const backendIsMega = slotDisplay("backend") === "megamoe";
        const epShown = !!fc.ep && !(typeof fc.ep.showWhen === "function" && !fc.ep.showWhen(base));
        return <div key={axisId} style={s.card}>
            <div style={s.compactRow}>
              <span style={s.axisTitle}>MoE</span>
              {fc.backend && <span style={s.field}>
                  <span style={s.fieldLabel}>Backend</span>
                  {renderSelect(slotDisplay("backend"), fc.backend.options || [], v => setSlot("backend", v), base, undefined, {
          hideValues: [...hideNull("backend"), ...mmAvail ? [] : ["megamoe"]]
        })}
                </span>}
              {fc.megamoeQuant && backendIsMega && <span style={s.field}>
                  <span style={s.fieldLabel}>Quantization</span>
                  {renderSelect(value.mmQuant != null ? value.mmQuant : derived && derived.mmQuant || "w4a8", fc.megamoeQuant.options || [], v => setSlot("mmQuant", v), base)}
                </span>}
              {epShown && <span style={s.field}>
                  <span style={s.fieldLabel}>{fc.ep.label || "EP"}</span>
                  {renderSelect(slotDisplay("ep"), fc.ep.values || [null], v => setSlot("ep", v), base, undefined, {
          hideValues: hideNull("ep")
        })}
                </span>}
            </div>
          </div>;
      }
    },
    parsers: {
      initState: fc => {
        const out = {};
        for (const item of fc.items || []) out[item.id] = null;
        return out;
      },
      deriveFromBase: (cell, fc, h) => {
        const flags = cell && cell.flags || [];
        const out = {};
        for (const item of fc.items || []) {
          const prefix = item.flag.split(/[\s=]/)[0];
          out[item.id] = h.hasFlag(flags, prefix);
        }
        return out;
      },
      apply: ({flags, env, value, fc, h, derived}) => {
        const items = fc.items || [];
        const eff = {};
        const baseOf = {};
        for (const item of items) {
          baseOf[item.id] = derived ? !!derived[item.id] : false;
          const v = value[item.id];
          eff[item.id] = v === null || v === undefined ? baseOf[item.id] : v;
        }
        const anyOverride = items.some(it => eff[it.id] !== baseOf[it.id]);
        if (!anyOverride) return {
          flags,
          env
        };
        flags = h.stripFlagsByFirstToken(flags, ["--reasoning-parser", "--tool-call-parser"]);
        const adds = [];
        for (const item of items) {
          if (eff[item.id]) adds.push(item.flag);
        }
        if (adds.length) flags = h.insertBeforeTail(flags, adds);
        return {
          flags,
          env
        };
      },
      render: ({axisId, value, setValue, fc, base, s, h, renderChip, derived}) => {
        const visible = (fc.items || []).map(item => ({
          item,
          c: h.evaluateChip(item, base)
        })).filter(({c}) => !c.hidden);
        if (visible.length === 0) return null;
        const effOn = id => {
          const v = value[id];
          if (v !== null && v !== undefined) return v;
          if (derived && derived[id] !== undefined) return derived[id];
          return false;
        };
        return <div key={axisId} style={s.card}>
            <div style={s.compactRow}>
              <span style={s.axisTitle}>Parsers</span>
              {visible.map(({item, c}) => <span key={item.id} style={s.field}>
                  {renderChip(item.label, effOn(item.id), true, () => setValue({
          ...value,
          [item.id]: !effOn(item.id)
        }), {
          disabled: c.disabled,
          disabledReason: c.disableReason
        })}
                </span>)}
            </div>
          </div>;
      }
    },
    speculative: {
      initState: () => "current",
      deriveFromBase: (cell, fc) => {
        const flags = cell && cell.flags || [];
        const baseSpec = flags.filter(f => {
          const head = f.split(/[\s=]/)[0];
          return head === "--speculative-algorithm" || head === "--speculative-num-steps" || head === "--speculative-eagle-topk" || head === "--speculative-num-draft-tokens" || head === "--speculative-adaptive" || head === "--speculative-dspark-block-size" || head === "--enable-linear-replayssm-spec" || head === "--linear-replayssm-cache-len" || head === "--speculative-ngram-max-bfs-breadth";
        });
        if (baseSpec.length === 0) return "off";
        for (const opt of fc.options || []) {
          if (!opt.flags || opt.flags.length !== baseSpec.length) continue;
          const ok = opt.flags.every(pf => baseSpec.includes(pf));
          if (ok) return opt.id;
        }
        return "current";
      },
      apply: ({flags, env, value, fc, sel, h, derived}) => {
        if (value === "current") return {
          flags,
          env
        };
        if (derived && value === derived) return {
          flags,
          env
        };
        const picked = (fc.options || []).find(p => p.id === value);
        if (picked && h.evaluateChip(picked, {
          ...sel,
          dpAttnOn: h.hasFlag(flags, "--enable-dp-attention")
        }).disabled) {
          return {
            flags,
            env
          };
        }
        flags = h.stripFlagsByFirstToken(flags, ["--speculative-algorithm", "--speculative-num-steps", "--speculative-eagle-topk", "--speculative-num-draft-tokens", "--speculative-adaptive", "--speculative-dspark-block-size", "--enable-linear-replayssm-spec", "--linear-replayssm-cache-len", "--speculative-ngram-max-bfs-breadth"]);
        const preset = (fc.options || []).find(p => p.id === value);
        if (preset?.flags?.length) flags = h.insertBeforeTail(flags, preset.flags);
        return {
          flags,
          env
        };
      },
      render: ({axisId, value, setValue, fc, base, s, h, renderChip, derived}) => {
        const opts = fc.options || [];
        if (!opts.length) return null;
        const display = value !== "current" ? value : derived ? derived : "current";
        const hideCurrent = !!(derived && derived !== "current");
        const visible = opts.map(opt => h.evaluateChip(opt, base)).filter(c => !c.hidden && !(hideCurrent && c.value === "current"));
        if (visible.length === 0) return null;
        const note = (visible.find(c => c.value === display) || ({})).note;
        return <div key={axisId} style={s.card}>
            <div style={s.compactRow}>
              <span style={s.axisTitle}>Speculative</span>
              {visible.map(c => <span key={c.value} style={s.field}>
                  {renderChip(c.label, display, c.value, () => setValue(c.value), {
          disabled: c.disabled,
          disabledReason: c.disableReason
        })}
                </span>)}
            </div>
            {note && <div style={s.axisNote}>{note}</div>}
          </div>;
      }
    },
    pdDisagg: {
      initState: fc => ({
        mode: "off",
        transferBackend: (fc && (fc.transferBackends || [])[0] || ({})).id || "mooncake",
        ibDevice: "auto"
      }),
      apply: ({flags, env, value, sel, fc, h}) => {
        const bootstrapPort = h.findFlagArg(flags, "--disaggregation-bootstrap-port");
        flags = h.stripFlagsByFirstToken(flags, ["--disaggregation-mode", "--disaggregation-transfer-backend", "--disaggregation-ib-device", "--disaggregation-bootstrap-port"]);
        const backends = fc.transferBackends || [];
        const mode = (fc.modes || []).length ? value.mode : sel && sel.pdMode || "off";
        if (mode === "prefill" || mode === "decode") {
          const specAlgorithm = (h.findFlagArg(flags, "--speculative-algorithm") || "").toUpperCase();
          if ((fc.incompatibleSpeculativeAlgorithms || []).includes(specAlgorithm)) {
            flags = flags.filter(flag => !flag.split(/[\s=]/)[0].startsWith("--speculative-"));
          }
          const backend = value.transferBackend || (backends[0] || ({})).id || "mooncake";
          const adds = [`--disaggregation-mode ${mode}`, `--disaggregation-transfer-backend ${backend}`];
          if (bootstrapPort) {
            adds.push(`--disaggregation-bootstrap-port ${bootstrapPort}`);
          }
          if (value.ibDevice && value.ibDevice !== "auto") {
            adds.push(`--disaggregation-ib-device ${value.ibDevice}`);
          }
          const modeMeta = (fc.modes || []).find(m => m.id === mode);
          if (modeMeta && modeMeta.flags && modeMeta.flags.length) {
            flags = h.stripFlagsByFirstToken(flags, modeMeta.flags.map(f => f.split(/[\s=]/)[0]));
            adds.push(...modeMeta.flags);
          }
          flags = h.insertBeforeTail(flags, adds);
          const servePort = PD_PORTS[mode].serve;
          flags = flags.map(f => f.split(/[\s=]/)[0] === "--port" ? `--port ${servePort}` : f);
          const meta = backends.find(b => b.id === backend);
          if (meta && meta.env && meta.env.length) {
            const gate = meta.envWhen;
            const ok = !gate || Object.keys(gate).every(k => (gate[k] || []).includes(sel[k]));
            if (ok) env = [...env, ...meta.env.filter(e => !env.includes(e))];
          }
          if (modeMeta && modeMeta.env && modeMeta.env.length) {
            env = [...env, ...modeMeta.env.filter(e => !env.includes(e))];
          }
        }
        return {
          flags,
          env
        };
      },
      getRenderHints: (value, fc, context) => {
        const specAlgorithm = (context.h.findFlagArg(context.flags, "--speculative-algorithm") || "").toUpperCase();
        if ((fc.incompatibleSpeculativeAlgorithms || []).includes(specAlgorithm)) {
          return null;
        }
        if (value.mode === "prefill" || value.mode === "decode") {
          return {
            pdMode: value.mode
          };
        }
        return null;
      },
      render: ({axisId, value, setValue, fc, base, s, renderSelect}) => {
        const setSlot = (k, v) => setValue({
          ...value,
          [k]: v
        });
        const showModes = (fc.modes || []).length > 0;
        const showBackends = (fc.transferBackends || []).length > 0;
        const showIb = (fc.ibDevices || []).length > 0;
        if (!showModes && !showBackends && !showIb) return null;
        return <div key={axisId} style={s.card}>
            <div style={s.compactRow}>
              <span style={s.axisTitle}>PD Disagg</span>
              {showModes && <span style={s.field}>
                  <span style={s.fieldLabel}>Mode</span>
                  {renderSelect(value.mode, fc.modes, v => setSlot("mode", v), base)}
                </span>}
              {showBackends && <span style={s.field}>
                  <span style={s.fieldLabel}>Transfer Backend</span>
                  {renderSelect(value.transferBackend, fc.transferBackends, v => setSlot("transferBackend", v), base)}
                </span>}
              {showIb && <span style={s.field}>
                  <span style={s.fieldLabel}>IB Device</span>
                  {renderSelect(value.ibDevice, fc.ibDevices, v => setSlot("ibDevice", v), base)}
                </span>}
            </div>
          </div>;
      }
    },
    hisparse: {
      initState: fc => ({
        enable: false,
        hostRatio: fc && fc.defaultHostRatio || null
      }),
      apply: ({flags, env, value, fc, h}) => {
        const ownedHeads = ["--enable-hisparse", "--hisparse-config", ...(fc.requiredFlags || []).map(f => f.split(/\s/)[0])];
        flags = h.stripFlagsByFirstToken(flags, ownedHeads);
        const isDecode = flags.includes("--disaggregation-mode decode");
        if (value.enable && isDecode) {
          const ratio = value.hostRatio !== null && value.hostRatio !== undefined ? value.hostRatio : fc.defaultHostRatio || 10;
          const cfg = {
            ...fc.config || ({}),
            host_to_device_ratio: ratio
          };
          const adds = [...fc.requiredFlags || [], "--enable-hisparse", `--hisparse-config '${JSON.stringify(cfg)}'`];
          flags = h.insertBeforeTail(flags, adds);
        }
        return {
          flags,
          env
        };
      },
      render: ({axisId, value, setValue, fc, base, s, renderChip, renderSelect}) => {
        if (base.pdMode !== "decode") return null;
        const setSlot = (k, v) => setValue({
          ...value,
          [k]: v
        });
        const hasRatios = (fc.hostRatios || []).length > 0;
        return <div key={axisId} style={s.card}>
            <div style={s.compactRow}>
              <span style={s.axisTitle}>HiSparse</span>
              {typeof fc.showWhen !== "function" && <span style={s.field}>
                  {renderChip("Enable", value.enable, true, () => setSlot("enable", !value.enable))}
                </span>}
              {hasRatios && <span style={s.field}>
                  <span style={s.fieldLabel}>Host ratio</span>
                  {renderSelect(value.hostRatio, fc.hostRatios, v => setSlot("hostRatio", v), base)}
                </span>}
            </div>
          </div>;
      }
    },
    hicache: {
      initState: () => ({
        enable: null,
        backend: null,
        writePolicy: "auto"
      }),
      deriveFromBase: (cell, fc, h) => {
        const flags = cell && cell.flags || [];
        return {
          enable: h.hasFlag(flags, "--enable-hierarchical-cache"),
          backend: h.findFlagArg(flags, "--hicache-storage-backend"),
          writePolicy: h.findFlagArg(flags, "--hicache-write-policy") || "auto"
        };
      },
      apply: ({flags, env, value, fc, sel, h, derived}) => {
        if (fc.excludesHw && sel && fc.excludesHw.includes(sel.hw)) return {
          flags,
          env
        };
        if (typeof fc.showWhen === "function") {
          const set = (name, val) => {
            flags = h.stripFlagsByFirstToken(flags, [name]);
            if (val) flags = h.insertBeforeTail(flags, [`${name} ${val}`]);
          };
          if (value.backend) set("--hicache-storage-backend", value.backend);
          if (value.writePolicy && value.writePolicy !== "auto") {
            set("--hicache-write-policy", value.writePolicy);
          }
          return {
            flags,
            env
          };
        }
        const hasOverride = value.enable !== null || value.backend !== null || value.writePolicy && value.writePolicy !== "auto";
        if (!hasOverride) return {
          flags,
          env
        };
        const backendOptions = fc.backends || [];
        const ownedHeads = ["--enable-hierarchical-cache", "--hicache-ratio", "--hicache-size", "--hicache-write-policy", "--hicache-mem-layout", "--hicache-io-backend", "--hicache-storage-backend", "--hicache-storage-prefetch-policy", "--hicache-storage-backend-extra-config", ...(fc.requiredFlags || []).map(f => f.split(/\s/)[0]), ...backendOptions.flatMap(o => (o.flags || []).map(f => f.split(/\s/)[0]))];
        const ownedEnvKeys = [...fc.requiredEnv || [], ...backendOptions.flatMap(o => o.env || [])].map(e => e.split("=")[0]);
        flags = h.stripFlagsByFirstToken(flags, ownedHeads);
        if (ownedEnvKeys.length) env = h.stripEnvByPrefix(env, ownedEnvKeys);
        const enabled = value.enable !== null ? value.enable : !!(derived && derived.enable);
        const backend = value.backend !== null ? value.backend : derived && derived.backend || fc.defaultBackend || null;
        if (enabled) {
          const isAmd = sel && (/^mi\d/).test(sel.hw);
          const pdMode = h.findFlagArg(flags, "--disaggregation-mode") || "off";
          const pdBackend = h.findFlagArg(flags, "--disaggregation-transfer-backend");
          const roleOverride = (fc.roleOverrides || []).find(item => {
            if (!item || item.mode !== pdMode) return false;
            if (item.transferBackend && item.transferBackend !== pdBackend) return false;
            return !item.when || h.matchConstraint(sel, item.when);
          });
          const amdIo = roleOverride || isAmd && fc.amdIo;
          const ratio = amdIo && amdIo.ratio || 2;
          const useAmdIo = isAmd && amdIo;
          const adds = ["--enable-hierarchical-cache", `--hicache-ratio ${ratio}`];
          if (!useAmdIo) {
            adds.push("--hicache-size 0");
          }
          if (useAmdIo) {
            adds.push(`--hicache-mem-layout ${amdIo.memLayout}`, `--hicache-io-backend ${amdIo.ioBackend}`);
          } else if (backend) {
            adds.push("--hicache-mem-layout page_first_direct", "--hicache-io-backend direct");
          }
          const writePolicy = value.writePolicy && value.writePolicy !== "auto" ? value.writePolicy : amdIo && amdIo.writePolicy || "write_through";
          adds.push(`--hicache-write-policy ${writePolicy}`);
          if (isAmd && fc.amdStorageFileOnly ? backend === "file" : !!backend) {
            adds.push(`--hicache-storage-backend ${backend}`, `--hicache-storage-prefetch-policy ${amdIo && amdIo.prefetchPolicy || "wait_complete"}`);
          } else if (amdIo && amdIo.prefetchPolicy) {
            adds.push(`--hicache-storage-prefetch-policy ${amdIo.prefetchPolicy}`);
          }
          const backendOption = backendOptions.find(o => o.id === backend);
          adds.push(...backendOption?.flags || [], ...fc.requiredFlags || []);
          flags = h.insertBeforeTail(flags, adds);
          env = [...env, ...backendOption?.env || [], ...fc.requiredEnv || []];
        }
        return {
          flags,
          env
        };
      },
      render: ({axisId, value, setValue, fc, base, s, renderChip, renderSelect, derived}) => {
        if (fc.excludesHw && fc.excludesHw.includes(base.hw)) return null;
        const setSlot = (k, v) => setValue({
          ...value,
          [k]: v
        });
        const hasBackends = (fc.backends || []).length > 0;
        const hasPolicies = (fc.writePolicies || []).length > 0;
        const enabled = value.enable !== null ? value.enable : !!(derived && derived.enable);
        const hasAutoBackend = (fc.backends || []).some(o => o.id === null);
        const backend = value.backend !== null ? value.backend : hasAutoBackend ? null : derived && derived.backend || fc.defaultBackend || null;
        const writePolicy = value.writePolicy !== "auto" ? value.writePolicy : derived && derived.writePolicy || "auto";
        return <div key={axisId} style={s.card}>
            <div style={s.compactRow}>
              <span style={s.axisTitle}>HiCache</span>
              {typeof fc.showWhen !== "function" && <span style={s.field}>
                  {renderChip("Enable", enabled, true, () => setSlot("enable", !enabled))}
                </span>}
              {hasBackends && <span style={s.field}>
                  <span style={s.fieldLabel}>Storage</span>
                  {renderSelect(backend, fc.backends, v => setSlot("backend", v), base)}
                </span>}
              {hasPolicies && <span style={s.field}>
                  <span style={s.fieldLabel}>Write</span>
                  {renderSelect(writePolicy, fc.writePolicies, v => setSlot("writePolicy", v), base)}
                </span>}
            </div>
          </div>;
      }
    },
    flagSelects: {
      initState: (fc, base) => {
        const out = {};
        for (const spec of fc || []) {
          const d = typeof spec.default === "function" ? spec.default(base) : spec.default;
          out[spec.id] = d ?? null;
        }
        return out;
      },
      deriveFromBase: (cell, fc) => {
        const flags = cell && cell.flags || [];
        const out = {};
        for (const spec of fc || []) {
          const prefixes = spec.stripPrefixes || [];
          const fam = flags.filter(f => prefixes.includes(f.split(/[\s=]/)[0]));
          let hit = null;
          for (const opt of spec.options || []) {
            if (typeof opt.flags === "function") continue;
            const of = opt.flags || [];
            if (of.length === fam.length && of.every(x => fam.includes(x))) {
              hit = opt.id;
              break;
            }
          }
          out[spec.id] = hit;
        }
        return out;
      },
      apply: ({flags, env, value, fc, sel, h, derived}) => {
        const evalBase = {
          ...sel || ({}),
          dpAttnOn: h.hasFlag(flags, "--enable-dp-attention"),
          pdMode: h.findFlagArg(flags, "--disaggregation-mode") || "off"
        };
        for (const spec of fc || []) {
          if (typeof spec.showWhen === "function" && !spec.showWhen(sel, value, derived)) continue;
          const v = value ? value[spec.id] : null;
          if (v === null || v === undefined) continue;
          const d = derived ? derived[spec.id] : null;
          if (v === d) continue;
          const opt = (spec.options || []).find(o => o.id === v);
          if (!opt) continue;
          if (h.evaluateChip(opt, evalBase).disabled) continue;
          const optFlags = typeof opt.flags === "function" ? opt.flags(value, evalBase) : opt.flags || [];
          if (optFlags === null) continue;
          const strip = new Set(spec.stripPrefixes || []);
          const byTok = new Map();
          for (const f of optFlags) {
            const t = f.split(/[\s=]/)[0];
            if (!byTok.has(t)) byTok.set(t, []);
            byTok.get(t).push(f);
          }
          const consumed = new Set();
          const next = [];
          for (const f of flags) {
            const t = f.split(/[\s=]/)[0];
            if (byTok.has(t)) {
              if (!consumed.has(t)) {
                next.push(...byTok.get(t));
                consumed.add(t);
              }
            } else if (!strip.has(t)) {
              next.push(f);
            }
          }
          const fresh = [];
          for (const [t, fs] of byTok) {
            if (!consumed.has(t)) fresh.push(...fs);
          }
          flags = fresh.length ? h.insertBeforeTail(next, fresh) : next;
          const envKeys = [...spec.stripEnv || []];
          for (const o of spec.options || []) {
            for (const e of o.env || []) envKeys.push(e.split("=")[0]);
          }
          if (envKeys.length) env = h.stripEnvByPrefix(env, envKeys);
          if (opt.env && opt.env.length) env = [...env, ...opt.env];
        }
        return {
          flags,
          env
        };
      },
      render: ({axisId, value, setValue, fc, base, s, h, renderChip, derived}) => {
        const cards = [];
        for (const spec of fc || []) {
          if (typeof spec.showWhen === "function" && !spec.showWhen(base, value, derived)) continue;
          const opts = (spec.options || []).map(o => h.evaluateChip(o, base)).filter(c => !c.hidden);
          if (!opts.length) continue;
          const explicit = value ? value[spec.id] : null;
          const display = explicit !== null && explicit !== undefined ? explicit : derived ? derived[spec.id] : null;
          if (spec.control === "slider") {
            const idx = Math.max(0, opts.findIndex(c => c.value === display));
            const cur = opts[idx];
            cards.push(<div key={`${axisId}-${spec.id}`} style={s.card}>
                <div style={s.compactRow}>
                  <span style={s.axisTitle}>{spec.title}</span>
                  <input type="range" min={0} max={opts.length - 1} step={1} value={idx} onChange={e => setValue({
              ...value,
              [spec.id]: opts[Number(e.target.value)].value
            })} style={{
              flex: 1,
              minWidth: "120px",
              accentColor: "#D45D44"
            }} />
                  <span style={{
              ...s.axisTitle,
              minWidth: "24px",
              textAlign: "right"
            }}>
                    {cur ? cur.label : "-"}
                  </span>
                </div>
              </div>);
            continue;
          }
          cards.push(<div key={`${axisId}-${spec.id}`} style={s.card}>
              <div style={s.compactRow}>
                <span style={s.axisTitle}>{spec.title}</span>
                {opts.map(c => <span key={c.value} style={s.field}>
                    {renderChip(c.label, display, c.value, () => setValue({
            ...value,
            [spec.id]: c.value
          }), {
            disabled: c.disabled,
            disabledReason: c.disableReason
          })}
                  </span>)}
              </div>
            </div>);
        }
        return cards.length ? cards : null;
      }
    }
  };
  const applyAllDeltas = (baseFlags, baseEnv, allDeltas, sel, derivedMap) => {
    let flags = [...baseFlags];
    let env = [...baseEnv || []];
    let pdMode = null;
    for (const [axisId, handler] of Object.entries(AXIS_HANDLERS)) {
      const fc = pgFeatures[axisId];
      if (!fc) continue;
      const value = allDeltas[axisId];
      if (value === undefined) continue;
      const derived = derivedMap ? derivedMap[axisId] : null;
      const specAlgorithm = (findFlagArg(flags, "--speculative-algorithm") || "").toUpperCase() || null;
      const liveSel = {
        ...sel,
        specAlgorithm
      };
      const out = handler.apply({
        flags,
        env,
        value,
        fc,
        sel: liveSel,
        h: helpers,
        derived
      });
      flags = out.flags;
      env = out.env;
      if (handler.getRenderHints) {
        const hints = handler.getRenderHints(value, fc, {
          flags,
          env,
          sel: liveSel,
          h: helpers
        }) || ({});
        if (hints.pdMode) pdMode = hints.pdMode;
      }
    }
    return {
      flags,
      env,
      pdMode
    };
  };
  const renderCommandLines = (cell, flags, cellEnv, sel, envValues, pdMode = null, mode = "python") => {
    const modelName = resolveModelName(sel);
    let f = [...flags];
    const nnodesFlag = f.find(x => x.split(/[\s=]/)[0] === "--nnodes");
    const nnodesMatch = nnodesFlag && (/^--nnodes(?:\s+|=)(\d+)$/).exec(nnodesFlag.trim());
    const baseNnodes = sel.nodes !== undefined ? parseNnodes(sel.nodes) : cell && cell.nnodes || 1;
    const nnodes = nnodesMatch ? parseInt(nnodesMatch[1], 10) : baseNnodes;
    const multinode = nnodes > 1;
    if (multinode && !f.some(x => x.startsWith("--nnodes"))) {
      const PARALLELISM_ANCHORS = ["--enable-dp-attention", "--dp-size", "--dp", "--tp-size", "--tp"];
      let at = -1;
      for (const anchor of PARALLELISM_ANCHORS) {
        at = f.findIndex(x => x.split(/[\s=]/)[0] === anchor);
        if (at !== -1) break;
      }
      if (at === -1) at = f.findIndex(x => x.startsWith("--model-path"));
      const distPort = pdMode && PD_PORTS[pdMode] ? PD_PORTS[pdMode].dist : 20000;
      f.splice(at + 1, 0, `--nnodes ${nnodes}`, `--node-rank {{NODE_RANK}}`, `--dist-init-addr {{NODE0_IP}}:${distPort}`);
    }
    let cmd;
    if (mode === "docker") {
      const di = config.dockerImages || ({});
      const image = di[`${sel.hw}|${sel.variant}|${sel.quant}`] || di[`${sel.variant}|${sel.quant}`] || di[`${sel.hw}|${sel.quant}|${sel.strategy}`] || di[`${sel.hw}|${sel.quant}`] || di[sel.hw] || "lmsysorg/sglang:dev";
      const dockerRunCommand = typeof config.dockerRunCommand === "function" ? config.dockerRunCommand(sel) : config.dockerRunCommand || "sglang serve";
      const portFlag = f.find(x => x.split(/[\s=]/)[0] === "--port");
      const servePort = portFlag ? portFlag.slice(("--port").length).trim() : "{{PORT}}";
      const hostNetwork = multinode || pdMode || typeof config.dockerHostNetworkWhen === "function" && config.dockerHostNetworkWhen(sel, {
        flags: f,
        env: cellEnv
      });
      const HW_MULTINODE_DOCKER_FLAGS = {
        "dgx-spark": ["--ulimit memlock=-1:-1", "--cap-add IPC_LOCK", "--device /dev/infiniband"]
      };
      const fabricFlags = HW_MULTINODE_DOCKER_FLAGS[sel.hw] || [];
      const dockerLines = ["docker run --gpus all", "  --shm-size 32g", hostNetwork ? "  --network host" : `  -p ${servePort}:${servePort}`, ...multinode ? fabricFlags.map(x => "  " + x) : [], "  -v ~/.cache/huggingface:/root/.cache/huggingface", ...(config.dockerMounts || []).map(mount => `  -v ${mount}`), `  --env "HF_TOKEN={{HF_TOKEN}}"`, ...cellEnv.map(e => `  --env ${e}`), "  --ipc=host", `  ${image}`, `  ${dockerRunCommand}`, ...f.map(x => "    " + x)];
      cmd = dockerLines.join(" \\\n");
    } else {
      const flagBlock = f.map(x => "  " + x).join(" \\\n");
      const envBlock = cellEnv.length ? cellEnv.join(" \\\n") + " \\\n" : "";
      cmd = `${envBlock}sglang serve \\\n${flagBlock}`;
    }
    if (multinode && config.multiNodeHints && config.multiNodeHints[sel.hw]) {
      const hint = config.multiNodeHints[sel.hw].map(line => line.length ? "# " + line : "#").join("\n");
      cmd = `${hint}\n${cmd}`;
    }
    cmd = interpolate(cmd, envValues, modelName);
    if (multinode) {
      const header = `# Multi-node (${nnodes} nodes). Run the same command on every node with:\n` + `#   <node-rank> = 0 on the head node, 1..${nnodes - 1} on the others\n` + `#   <node0-ip>  = IP of the head node (reachable from all others)`;
      cmd = `${header}\n${cmd}`;
    }
    if (pdMode === "prefill" || pdMode === "decode") {
      const sibling = pdMode === "prefill" ? "decode" : "prefill";
      const routerCfg = config.playgroundFeatures && config.playgroundFeatures.pdDisagg && config.playgroundFeatures.pdDisagg.router;
      const routerPort = routerCfg && routerCfg.port || 8000;
      const routerLine = routerCfg ? `# then front BOTH with the Router shown below.\n` + `# Client traffic (cURL) targets the router (:${routerPort}), not this role server.` : `# then front BOTH with a router; client traffic targets the router, not this role server.`;
      const hicacheCfg = config.playgroundFeatures && config.playgroundFeatures.hicache;
      const pdBackend = findFlagArg(f, "--disaggregation-transfer-backend");
      const hicacheEnabled = f.some(x => x === "--enable-hierarchical-cache");
      const hicacheNotice = hicacheEnabled && hicacheCfg ? (hicacheCfg.notices || []).find(item => {
        if (!item || item.mode !== pdMode) return false;
        if (item.transferBackend && item.transferBackend !== pdBackend) return false;
        return !item.when || matchConstraint(sel, item.when);
      }) : null;
      const noticeLine = hicacheNotice && hicacheNotice.text ? `# Note: ${hicacheNotice.text}\n` : "";
      const banner = `# === PD Disaggregation: ${pdMode.toUpperCase()} role ===\n` + noticeLine + `# Runs the ${pdMode} server. Also run the ${sibling} role on its peer host,\n` + routerLine;
      cmd = `${banner}\n${cmd}`;
    }
    return cmd;
  };
  const computeDiff = (baseStr, pgStr) => {
    const a = baseStr.split("\n");
    const b = pgStr.split("\n");
    const m = a.length, n = b.length;
    const dp = Array(m + 1).fill(null).map(() => new Array(n + 1).fill(0));
    for (let i = 1; i <= m; i++) {
      for (let j = 1; j <= n; j++) {
        if (a[i - 1] === b[j - 1]) dp[i][j] = dp[i - 1][j - 1] + 1; else dp[i][j] = Math.max(dp[i - 1][j], dp[i][j - 1]);
      }
    }
    const out = [];
    let i = m, j = n;
    while (i > 0 || j > 0) {
      if (i > 0 && j > 0 && a[i - 1] === b[j - 1]) {
        out.unshift({
          line: a[i - 1],
          kind: "unchanged"
        });
        i--;
        j--;
      } else if (j > 0 && (i === 0 || dp[i][j - 1] >= dp[i - 1][j])) {
        out.unshift({
          line: b[j - 1],
          kind: "added"
        });
        j--;
      } else {
        out.unshift({
          line: a[i - 1],
          kind: "removed"
        });
        i--;
      }
    }
    return out;
  };
  const serializeCell = (sel, env, flags) => {
    const matchEntries = [`hw: ${JSON.stringify(sel.hw)}`, `variant: ${JSON.stringify(sel.variant)}`, `quant: ${JSON.stringify(sel.quant)}`, `strategy: ${JSON.stringify(sel.strategy)}`, `nodes: ${JSON.stringify(sel.nodes)}`].join(", ");
    const fmtList = items => {
      if (!items || items.length === 0) return "[]";
      const lines = items.map(s => `        ${JSON.stringify(s)},`).join("\n");
      return `[\n${lines}\n      ]`;
    };
    return ["    {", `      match: { ${matchEntries} },`, "      verified: true,", `      env: ${fmtList(env)},`, `      flags: ${fmtList(flags)},`, "    },"].join("\n");
  };
  const buildSubmitUrl = (sel, fields) => {
    const gh = config.github || ({});
    const owner = gh.owner || "sgl-project";
    const repo = gh.repo || "sglang";
    const tmpl = gh.issueTemplate || "3-playground-verified-cell.yml";
    const cookbookModel = gh.cookbookModel || "deepseek-ai/deepseek-v4";
    const combo = `${sel.hw} / ${sel.variant} / ${sel.quant} / ${sel.strategy} / ${sel.nodes}`;
    const params = new URLSearchParams({
      template: tmpl,
      title: `[Playground] Verified cell: ${combo}`,
      model: cookbookModel,
      combination: combo,
      "cell-snippet": fields.cellSnippet || "",
      "existing-cell": fields.existingCell || "",
      "sglang-version": fields.sglangVersion || "",
      "bench-result": fields.benchResult || "",
      notes: fields.notes || ""
    });
    return `https://github.com/${owner}/${repo}/issues/new?${params.toString()}`;
  };
  const makeStyles = isDark => ({
    container: {
      maxWidth: "900px",
      margin: "0 auto",
      display: "flex",
      flexDirection: "column",
      gap: "6px"
    },
    card: {
      padding: "6px 10px",
      border: `1px solid ${isDark ? "#374151" : "#e5e7eb"}`,
      borderLeft: `3px solid ${isDark ? "#FDBA74" : "#FB923C"}`,
      borderRadius: "4px",
      background: isDark ? "#1f2937" : "#fff"
    },
    cardStack: {
      display: "flex",
      flexDirection: "column",
      gap: "6px"
    },
    baseStrip: {
      padding: "8px 12px",
      borderRadius: "4px",
      background: isDark ? "#064e3b" : "#d1fae5",
      color: isDark ? "#a7f3d0" : "#065f46",
      fontSize: "12px",
      display: "flex",
      alignItems: "center",
      gap: "10px"
    },
    title: {
      fontSize: "13px",
      fontWeight: "600",
      color: isDark ? "#e5e7eb" : "inherit",
      marginBottom: "8px"
    },
    compactRow: {
      display: "flex",
      flexWrap: "wrap",
      alignItems: "center",
      gap: "10px",
      rowGap: "4px"
    },
    axisTitle: {
      fontSize: "12px",
      fontWeight: 700,
      color: isDark ? "#FDBA74" : "#C2410C",
      letterSpacing: "0.02em",
      minWidth: "100px",
      flexShrink: 0
    },
    field: {
      display: "inline-flex",
      alignItems: "center",
      gap: "4px"
    },
    fieldLabel: {
      fontSize: "11px",
      fontWeight: 500,
      color: isDark ? "#9ca3af" : "#6b7280"
    },
    select: {
      padding: "2px 6px",
      border: `1px solid ${isDark ? "#4b5563" : "#d1d5db"}`,
      borderRadius: "3px",
      fontSize: "12px",
      background: isDark ? "#111827" : "#fff",
      color: isDark ? "#e5e7eb" : "#111827",
      cursor: "pointer",
      lineHeight: "1.4"
    },
    rowFlex: {
      display: "flex",
      flexWrap: "wrap",
      gap: "6px",
      alignItems: "center",
      flex: 1
    },
    subRow: {
      display: "flex",
      alignItems: "center",
      gap: "10px"
    },
    subLabel: {
      fontSize: "11px",
      fontWeight: 600,
      color: isDark ? "#9ca3af" : "#6b7280",
      minWidth: "96px",
      flexShrink: 0,
      letterSpacing: "0.02em"
    },
    chipRow: {
      display: "flex",
      flexWrap: "wrap",
      gap: "6px",
      flex: 1
    },
    chip: {
      padding: "3px 9px",
      border: `1px solid ${isDark ? "#9ca3af" : "#d1d5db"}`,
      borderRadius: "3px",
      cursor: "pointer",
      fontSize: "12px",
      userSelect: "none",
      background: isDark ? "#374151" : "#fff",
      color: isDark ? "#e5e7eb" : "inherit",
      textAlign: "center"
    },
    chipChecked: {
      background: "#D45D44",
      color: "white",
      borderColor: "#D45D44"
    },
    chipDisabled: {
      cursor: "not-allowed",
      opacity: 0.4
    },
    commandWrap: {
      position: "relative",
      background: isDark ? "#111827" : "#f5f5f5",
      borderRadius: "6px",
      border: `1px solid ${isDark ? "#374151" : "#e5e7eb"}`,
      overflow: "hidden"
    },
    commandHeader: {
      display: "flex",
      flexWrap: "wrap",
      justifyContent: "space-between",
      alignItems: "center",
      gap: "6px 10px",
      padding: "6px 10px",
      borderBottom: `1px solid ${isDark ? "#374151" : "#e5e7eb"}`,
      background: isDark ? "#1f2937" : "#fafafa"
    },
    commandPre: {
      padding: "12px 16px",
      fontFamily: "'Menlo', 'Monaco', 'Courier New', monospace",
      fontSize: "12px",
      lineHeight: "1.5",
      color: isDark ? "#e5e7eb" : "#374151",
      whiteSpace: "pre-wrap",
      overflowX: "auto",
      margin: 0
    },
    axisNote: {
      margin: "6px 0 0",
      padding: "6px 10px",
      borderRadius: "6px",
      fontSize: "11px",
      lineHeight: "1.45",
      background: isDark ? "#78350f" : "#fef3c7",
      color: isDark ? "#fde68a" : "#92400e",
      border: `1px solid ${isDark ? "#92400e" : "#fcd34d"}`
    },
    mtpWarn: {
      margin: "8px 0 0",
      padding: "8px 12px",
      borderRadius: "8px",
      fontSize: "12px",
      lineHeight: "1.45",
      background: isDark ? "#78350f" : "#fef3c7",
      color: isDark ? "#fde68a" : "#92400e",
      border: `1px solid ${isDark ? "#92400e" : "#fcd34d"}`
    },
    diffLineUnchanged: {
      display: "block"
    },
    diffLineAdded: {
      display: "block",
      background: isDark ? "rgba(16,185,129,0.15)" : "rgba(16,185,129,0.18)",
      color: isDark ? "#a7f3d0" : "#065f46",
      borderLeft: `3px solid #10b981`,
      paddingLeft: "8px",
      marginLeft: "-8px"
    },
    diffLineRemoved: {
      display: "block",
      background: isDark ? "rgba(239,68,68,0.10)" : "rgba(239,68,68,0.10)",
      color: isDark ? "#fca5a5" : "#991b1b",
      textDecoration: "line-through",
      opacity: 0.7,
      borderLeft: `3px solid #ef4444`,
      paddingLeft: "8px",
      marginLeft: "-8px"
    },
    badge: verified => ({
      display: "inline-flex",
      alignItems: "center",
      gap: "6px",
      padding: "2px 8px",
      borderRadius: "10px",
      background: verified ? isDark ? "#064e3b" : "#d1fae5" : isDark ? "#78350f" : "#fef3c7",
      color: verified ? isDark ? "#a7f3d0" : "#065f46" : isDark ? "#fde68a" : "#92400e",
      fontSize: "11px",
      fontWeight: 600
    }),
    badgeDot: verified => ({
      width: "8px",
      height: "8px",
      borderRadius: "50%",
      background: verified ? "#10b981" : "#f59e0b"
    }),
    iconButton: {
      padding: "4px 10px",
      border: `1px solid ${isDark ? "#4b5563" : "#d1d5db"}`,
      borderRadius: "4px",
      background: isDark ? "#1f2937" : "#fff",
      color: isDark ? "#e5e7eb" : "#374151",
      fontSize: "11px",
      fontWeight: 500,
      cursor: "pointer",
      display: "inline-flex",
      alignItems: "center",
      gap: "4px"
    },
    iconRow: {
      display: "inline-flex",
      flexWrap: "wrap",
      gap: "6px"
    },
    runModeWrap: {
      display: "inline-flex",
      border: `1px solid ${isDark ? "#4b5563" : "#d1d5db"}`,
      borderRadius: "10px",
      overflow: "hidden",
      fontSize: "11px",
      fontWeight: 600,
      userSelect: "none"
    },
    runModeChip: active => ({
      padding: "2px 10px",
      cursor: "pointer",
      background: active ? isDark ? "#1f2937" : "#fff" : "transparent",
      color: active ? isDark ? "#e5e7eb" : "#111827" : isDark ? "#9ca3af" : "#6b7280",
      borderRight: `1px solid ${isDark ? "#4b5563" : "#d1d5db"}`
    }),
    runModeChipLast: active => ({
      padding: "2px 10px",
      cursor: "pointer",
      background: active ? isDark ? "#1f2937" : "#fff" : "transparent",
      color: active ? isDark ? "#e5e7eb" : "#111827" : isDark ? "#9ca3af" : "#6b7280"
    }),
    headerLeft: {
      display: "inline-flex",
      flexWrap: "wrap",
      alignItems: "center",
      gap: "8px"
    },
    dialog: {
      background: isDark ? "#1f2937" : "#fff",
      color: isDark ? "#e5e7eb" : "#111827",
      borderRadius: "8px",
      padding: "20px",
      maxWidth: "720px",
      width: "92%",
      maxHeight: "calc(100vh - 80px)",
      overflowY: "auto",
      border: `1px solid ${isDark ? "#374151" : "#e5e7eb"}`,
      boxShadow: "0 10px 25px rgba(0,0,0,0.25)",
      margin: "auto"
    },
    modalHeader: {
      display: "flex",
      justifyContent: "space-between",
      alignItems: "center",
      marginBottom: "12px"
    },
    modalTitle: {
      fontSize: "15px",
      fontWeight: 600
    },
    modalCloseBtn: {
      background: "transparent",
      border: "none",
      color: "inherit",
      fontSize: "20px",
      cursor: "pointer",
      padding: "0 6px",
      lineHeight: 1
    },
    formField: {
      display: "flex",
      flexDirection: "column",
      gap: "4px",
      marginBottom: "10px"
    },
    formLabel: {
      fontSize: "12px",
      fontWeight: 500,
      color: isDark ? "#9ca3af" : "#4b5563"
    },
    formInput: {
      padding: "6px 10px",
      fontSize: "13px",
      border: `1px solid ${isDark ? "#4b5563" : "#d1d5db"}`,
      borderRadius: "4px",
      background: isDark ? "#111827" : "#fff",
      color: isDark ? "#e5e7eb" : "#111827",
      fontFamily: "'Menlo', 'Monaco', 'Courier New', monospace"
    },
    sectionHeading: {
      fontSize: "12px",
      fontWeight: 600,
      textTransform: "uppercase",
      letterSpacing: "0.04em",
      color: isDark ? "#9ca3af" : "#6b7280",
      margin: "12px 0 6px 0"
    },
    primaryBtn: {
      padding: "6px 14px",
      background: isDark ? "#FDBA74" : "#FB923C",
      color: isDark ? "#7C2D12" : "white",
      border: "none",
      borderRadius: "4px",
      cursor: "pointer",
      fontSize: "13px",
      fontWeight: 500
    },
    resetBtn: {
      marginLeft: "auto",
      padding: "2px 8px",
      fontSize: "11px",
      border: `1px solid ${isDark ? "#4b5563" : "#d1d5db"}`,
      borderRadius: "3px",
      background: "transparent",
      color: isDark ? "#9ca3af" : "#6b7280",
      cursor: "pointer"
    },
    switchBaseBtn: {
      padding: "2px 8px",
      fontSize: "11px",
      fontWeight: 600,
      border: `1px solid ${isDark ? "#FDBA74" : "#FB923C"}`,
      borderRadius: "3px",
      background: "transparent",
      color: isDark ? "#FDBA74" : "#C2410C",
      cursor: "pointer"
    },
    matchedHint: {
      fontSize: "11px",
      color: isDark ? "#9ca3af" : "#6b7280",
      marginLeft: "8px",
      display: "inline-flex",
      alignItems: "center",
      gap: "4px"
    },
    matchedSwitchBtn: {
      marginLeft: "4px",
      background: "transparent",
      border: "none",
      padding: 0,
      color: isDark ? "#FDBA74" : "#C2410C",
      cursor: "pointer",
      fontSize: "11px",
      fontWeight: 600,
      textDecoration: "underline",
      textUnderlineOffset: "2px"
    }
  });
  const [isDark, setIsDark] = useState(false);
  useEffect(() => {
    const check = () => {
      const html = document.documentElement;
      setIsDark(html.classList.contains("dark") || html.getAttribute("data-theme") === "dark" || html.style.colorScheme === "dark");
    };
    check();
    const observer = new MutationObserver(check);
    observer.observe(document.documentElement, {
      attributes: true,
      attributeFilter: ["class", "data-theme", "style"]
    });
    return () => observer.disconnect();
  }, []);
  const [env, setEnv] = useState(() => placeholderDefaults(config.placeholders));
  useEffect(() => {
    try {
      const raw = window.localStorage.getItem(STORAGE_KEY);
      if (raw) {
        const parsed = JSON.parse(raw);
        setEnv({
          ...placeholderDefaults(config.placeholders),
          ...parsed
        });
      }
    } catch {}
  }, []);
  const saveEnv = next => {
    setEnv(next);
    try {
      window.localStorage.setItem(STORAGE_KEY, JSON.stringify(next));
    } catch {}
  };
  const overlayDefaults = () => {
    const out = {};
    for (const d of config.overlayDims || []) {
      const opts = d.options || [];
      out[d.id] = d.default !== undefined ? d.default : opts[0] && opts[0].id || "";
    }
    return out;
  };
  const baseFallback = () => ({
    ...config.cells[0].match,
    ...overlayDefaults()
  });
  const initialBaseFromHash = () => {
    const fallback = baseFallback();
    if (typeof window === "undefined") return {
      ...fallback
    };
    const raw = window.location.hash.replace(/^#/, "");
    if (!raw) return {
      ...fallback
    };
    const params = new URLSearchParams(raw);
    const out = {
      ...fallback
    };
    params.forEach((value, key) => {
      if ((key in out)) out[key] = value;
    });
    return out;
  };
  const [base, setBase] = useState(() => initialBaseFromHash());
  useEffect(() => {
    const onHash = () => setBase(initialBaseFromHash());
    const onSelEvent = e => {
      const fallback = baseFallback();
      const incoming = e && e.detail || ({});
      const next = {
        ...fallback
      };
      for (const k of Object.keys(next)) {
        if (incoming[k] !== undefined) next[k] = incoming[k];
      }
      setBase(next);
    };
    window.addEventListener("hashchange", onHash);
    window.addEventListener("sglang-deploy-sel", onSelEvent);
    return () => {
      window.removeEventListener("hashchange", onHash);
      window.removeEventListener("sglang-deploy-sel", onSelEvent);
    };
  }, []);
  const [pgRatios, setPgRatios] = useState({
    eff: null,
    base: null
  });
  useEffect(() => {
    const onRatio = e => setPgRatios({
      eff: e.detail && e.detail.ratio || null,
      base: e.detail && (e.detail.baseRatio || e.detail.ratio) || null
    });
    window.addEventListener("sglang-k3-mamba-ratio", onRatio);
    return () => window.removeEventListener("sglang-k3-mamba-ratio", onRatio);
  }, []);
  const initialDeltas = () => {
    const out = {};
    for (const [axisId, handler] of Object.entries(AXIS_HANDLERS)) {
      const fc = pgFeatures[axisId];
      if (fc) out[axisId] = handler.initState(fc, base);
    }
    return out;
  };
  const [deltas, setDeltas] = useState(initialDeltas);
  useEffect(() => {
    setDeltas(initialDeltas());
  }, [Object.keys(base).sort().map(k => `${k}=${base[k]}`).join("&")]);
  const [modal, setModal] = useState(null);
  const openDialog = el => {
    if (el && !el.open) {
      try {
        el.showModal();
      } catch {}
    }
  };
  const onDialogClick = e => {
    if (e.target !== e.currentTarget) return;
    const r = e.currentTarget.getBoundingClientRect();
    const {clientX: x, clientY: y} = e;
    if (x < r.left || x > r.right || y < r.top || y > r.bottom) setModal(null);
  };
  useEffect(() => {
    const ID = "__playground_dialog_backdrop";
    if (document.getElementById(ID)) return undefined;
    const style = document.createElement("style");
    style.id = ID;
    style.textContent = `dialog::backdrop { background: rgba(0, 0, 0, 0.5); }`;
    document.head.appendChild(style);
    return () => {
      const el = document.getElementById(ID);
      if (el) el.remove();
    };
  }, []);
  const [copied, setCopied] = useState(false);
  const [curlCopied, setCurlCopied] = useState(false);
  const [routerCopied, setRouterCopied] = useState(false);
  const [envDraft, setEnvDraft] = useState(env);
  useEffect(() => {
    if (modal === "env") setEnvDraft(env);
  }, [modal, env]);
  const [runMode, setRunMode] = useState("python");
  const [submitDraft, setSubmitDraft] = useState({
    sglangVersion: "",
    benchResult: "",
    notes: ""
  });
  const [submitAttest, setSubmitAttest] = useState({
    ranCommand: false,
    reachedReady: false,
    outputCorrect: false
  });
  useEffect(() => {
    if (modal === "submit") {
      setSubmitDraft({
        sglangVersion: "",
        benchResult: "",
        notes: ""
      });
      setSubmitAttest({
        ranCommand: false,
        reachedReady: false,
        outputCorrect: false
      });
    }
  }, [modal]);
  const s = makeStyles(isDark);
  const baseCell = withOverlay(findCell(config.cells, base), base);
  const modelName = resolveModelName(base);
  const derivedMap = {};
  if (baseCell) {
    for (const [axisId, handler] of Object.entries(AXIS_HANDLERS)) {
      const fc = pgFeatures[axisId];
      if (!fc || !handler.deriveFromBase) continue;
      derivedMap[axisId] = handler.deriveFromBase(baseCell, fc, helpers);
    }
  }
  const attnDelta = deltas.attention || ({});
  const attnDerived = derivedMap.attention || ({});
  const attnKnobs = (pgFeatures.attention || ({})).knobs || [];
  const effTp = attnDelta.tp !== null && attnDelta.tp !== undefined ? attnDelta.tp : attnDerived.tp !== undefined ? attnDerived.tp : null;
  const staleExplicit = (knobId, picked) => {
    const knob = attnKnobs.find(k => k.id === knobId);
    const e = knob ? findEntry(knob.values || [], picked) : null;
    return !!(e !== null && e !== undefined && evaluateChip(e, {
      ...base,
      effTp
    }).disabled);
  };
  const effDpAttn = attnDelta.dpAttn !== null && attnDelta.dpAttn !== undefined ? staleExplicit("dpAttn", attnDelta.dpAttn) ? null : attnDelta.dpAttn : attnDerived.dpAttn !== undefined ? attnDerived.dpAttn : null;
  const dpAttnOn = effDpAttn === true || typeof effDpAttn === "number" && effDpAttn > 0;
  const dpDegEff = typeof effDpAttn === "number" && effDpAttn > 0 ? effDpAttn : 1;
  const cpKnobFreeSize = !!(attnKnobs.find(k => k.id === "cp") || ({})).freeSize;
  const cpSizeTarget = !cpKnobFreeSize && dpDegEff === 1 && typeof effTp === "number" && effTp > 0 ? effTp : null;
  const cpSizeStale = v => typeof v === "number" && v > 1 && cpSizeTarget !== null && v !== cpSizeTarget;
  const effCp = attnDelta.cp !== null && attnDelta.cp !== undefined ? staleExplicit("cp", attnDelta.cp) || cpSizeStale(attnDelta.cp) ? null : attnDelta.cp : attnDerived.cp !== undefined ? attnDerived.cp : null;
  const cpOn = typeof effCp === "number" && effCp > 1;
  const cpStrategy = (attnDelta.cpStrategy && !staleExplicit("cpStrategy", attnDelta.cpStrategy) ? attnDelta.cpStrategy : attnDerived.cpStrategy !== undefined ? attnDerived.cpStrategy : null) || "interleave";
  const constraintEffective = baseCell ? applyAllDeltas(baseCell.flags, baseCell.env, deltas, base, derivedMap) : null;
  const pdCardOwnsMode = (pgFeatures.pdDisagg && pgFeatures.pdDisagg.modes || []).length > 0;
  const pdMode = pdCardOwnsMode ? constraintEffective && constraintEffective.pdMode || "off" : base.pdMode || "off";
  const specAlgorithm = constraintEffective ? (findFlagArg(constraintEffective.flags, "--speculative-algorithm") || "").toUpperCase() || null : null;
  const constraintBase = {
    ...base,
    dpAttnOn,
    cpOn,
    cpStrategy,
    cpSizeTarget,
    effTp,
    pdMode,
    specAlgorithm
  };
  let baseCommand = "";
  let playgroundCommand = "";
  let diffLines = [];
  let pgFlagsLatest = [];
  let pgEnvLatest = [];
  const withRatio = (fl, value) => {
    if (!value) return fl;
    if (fl.some(f => f.startsWith("--mamba-full-memory-ratio") || f.startsWith("--max-mamba-cache-size"))) return fl;
    const out = [...fl];
    const line = `--mamba-full-memory-ratio ${value}`;
    const i = out.findIndex(f => f.startsWith("--host"));
    if (i >= 0) out.splice(i, 0, line); else out.push(line);
    return out;
  };
  if (baseCell) {
    baseCommand = renderCommandLines(baseCell, withRatio(baseCell.flags, pgRatios.base), baseCell.env, base, env, null, runMode);
    const {flags: pgFlags, env: pgEnv, pdMode} = applyAllDeltas(baseCell.flags, baseCell.env, deltas, base, derivedMap);
    pgFlagsLatest = pgFlags;
    pgEnvLatest = pgEnv;
    playgroundCommand = renderCommandLines(baseCell, withRatio(pgFlags, pgRatios.eff), pgEnv, base, env, pdMode, runMode);
    diffLines = computeDiff(baseCommand, playgroundCommand);
  }
  const effectiveKey = pgFlagsLatest.join("\n") + " " + pgEnvLatest.join("\n") + " " + (baseCell ? baseCell.flags.join("\n") + " " + baseCell.env.join("\n") : "");
  useEffect(() => {
    if (typeof window === "undefined" || !baseCell) return;
    window.dispatchEvent(new CustomEvent("sglang-k3-effective-config", {
      detail: {
        flags: pgFlagsLatest,
        env: pgEnvLatest,
        baseFlags: baseCell.flags,
        baseEnv: baseCell.env
      }
    }));
  }, [effectiveKey]);
  const matchedCell = baseCell ? findMatchingCell(config.cells, base, pgEnvLatest, pgFlagsLatest) : null;
  const playgroundVerified = !!(matchedCell && matchedCell.verified);
  const matchedSiblingCell = matchedCell && DIMENSIONS.some(d => matchedCell.match[d] !== base[d]) ? matchedCell : null;
  const pgSpecAlgoFlag = pgFlagsLatest.find(f => f.split(/[\s=]/)[0] === "--speculative-algorithm");
  const pgSpecHint = !!pgSpecAlgoFlag && !pgFlagsLatest.some(f => f.split(/[\s=]/)[0] === "--max-running-requests");
  const specAlgoLabels = {
    EAGLE: "MTP",
    EAGLE3: "MTP",
    FROZEN_KV_MTP: "MTP",
    DSPARK: "DSpark",
    DFLASH: "DFlash",
    NGRAM: "N-gram",
    STANDALONE: "standalone draft"
  };
  const pgSpecAlgoValue = pgSpecAlgoFlag ? pgSpecAlgoFlag.split(/[\s=]/).filter(Boolean)[1] || "" : "";
  const pgSpecAlgoName = specAlgoLabels[pgSpecAlgoValue.toUpperCase()] || pgSpecAlgoValue || "MTP";
  const pgCpDpHint = cpEnabledIn(pgFlagsLatest) && (bakedCpStrategy(pgFlagsLatest) || "interleave") === "interleave" && pgFlagsLatest.some(f => f.split(/[\s=]/)[0] === "--enable-dp-attention");
  const proposedCellSnippet = baseCell ? serializeCell(base, pgEnvLatest, pgFlagsLatest) : "";
  const existingCellSnippet = baseCell ? serializeCell(base, baseCell.env || [], baseCell.flags) : "";
  const submitUrl = baseCell ? buildSubmitUrl(base, {
    cellSnippet: proposedCellSnippet,
    existingCell: existingCellSnippet,
    sglangVersion: submitDraft.sglangVersion,
    benchResult: submitDraft.benchResult,
    notes: submitDraft.notes
  }) : "";
  const submitReady = submitAttest.ranCommand && submitAttest.reachedReady && submitAttest.outputCorrect && submitDraft.sglangVersion.trim().length > 0;
  const pdRouter = pdMode !== "off" && config.playgroundFeatures && config.playgroundFeatures.pdDisagg && config.playgroundFeatures.pdDisagg.router || null;
  const curlEnv = pdRouter && pdRouter.port != null ? {
    ...env,
    CURL_PORT: String(pdRouter.port)
  } : env;
  const curlText = interpolate(config.curl || "", curlEnv, modelName);
  const routerText = pdRouter && pdRouter.command ? interpolate(pdRouter.command, {
    ...env,
    PREFILL_PORT: PD_PORTS.prefill.serve,
    DECODE_PORT: PD_PORTS.decode.serve,
    ROUTER_PORT: pdRouter.port
  }, modelName) : "";
  const resetAll = () => setDeltas(initialDeltas());
  const placeholderGroups = (() => {
    const out = {
      command: [],
      curl: []
    };
    for (const [key, meta] of Object.entries(config.placeholders || ({}))) {
      (out[meta.target] || (out[meta.target] = [])).push({
        key,
        ...meta
      });
    }
    return out;
  })();
  const handleCopy = () => {
    navigator.clipboard.writeText(playgroundCommand);
    setCopied(true);
    setTimeout(() => setCopied(false), 1200);
  };
  const copyCurl = () => {
    navigator.clipboard.writeText(curlText);
    setCurlCopied(true);
    setTimeout(() => setCurlCopied(false), 1200);
  };
  const baseSummary = baseCell ? Object.entries(base).filter(([, v]) => v !== undefined && v !== "").map(([k, v]) => k === "hw" ? String(v).toUpperCase() : String(v)).join(" · ") : "(no verified cell at the current Deploy selection — showing playground only)";
  const renderChip = (label, current, value, onPick, opts = {}) => {
    const checked = current === value;
    const disabled = !!opts.disabled;
    return <span key={`${label}-${value === null ? "auto" : value}`} style={{
      ...s.chip,
      ...checked ? s.chipChecked : {},
      ...disabled ? s.chipDisabled : {}
    }} title={disabled ? opts.disabledReason || "Not available" : ""} onClick={() => {
      if (!disabled) onPick(value);
    }}>
        {label}
      </span>;
  };
  const renderSelect = (current, entries, onPick, base, labelFor, opts = {}) => {
    const hideSet = new Set(opts.hideValues || []);
    const items = [];
    for (const entry of entries || []) {
      const c = helpers.evaluateChip(entry, base);
      if (c.hidden) continue;
      if (hideSet.has(c.value)) continue;
      const lbl = labelFor ? labelFor(c) : c.label !== undefined ? c.label : c.value === null ? "Auto" : String(c.value);
      items.push({
        ...c,
        label: lbl
      });
    }
    let idx = items.findIndex(c => c.value === current);
    if (idx === -1) idx = 0;
    return <select style={{
      ...s.select,
      ...opts.disabled ? s.chipDisabled : {}
    }} disabled={!!opts.disabled} title={opts.disabled ? opts.disabledReason || "Not available" : ""} value={idx} onChange={e => {
      const next = items[parseInt(e.target.value, 10)];
      if (next && !next.disabled) onPick(next.value);
    }}>
        {items.map((c, i) => <option key={i} value={i} disabled={c.disabled}>
            {c.label}{c.disabled ? " (n/a)" : ""}
          </option>)}
      </select>;
  };
  return <div style={s.container} className="not-prose">
      {}
      <div style={s.baseStrip}>
        <span style={{
    fontWeight: 600
  }}>Inherited base from Deployment:</span>
        <code style={{
    fontFamily: "Menlo, monospace"
  }}>{baseSummary}</code>
        {}
        <button type="button" style={s.switchBaseBtn} onClick={() => {
    const el = document.getElementById(DEPLOYMENT_COMPONENT_ID) || document.getElementById("deployment") || document.getElementById("deploy");
    if (el) el.scrollIntoView({
      behavior: "smooth",
      block: "start"
    });
  }}>
          ↑ Switch base
        </button>
        <button style={s.resetBtn} onClick={resetAll}>Reset all overrides</button>
      </div>

      {}
      {Object.entries(AXIS_HANDLERS).map(([axisId, handler]) => {
    const fc = pgFeatures[axisId];
    if (!fc) return null;
    if (typeof fc.showWhen === "function" && !fc.showWhen(constraintBase)) return null;
    const setValue = next => setDeltas(d => ({
      ...d,
      [axisId]: next
    }));
    return handler.render({
      axisId,
      value: deltas[axisId],
      setValue,
      fc,
      base: constraintBase,
      s,
      h: helpers,
      renderChip,
      renderSelect,
      derived: derivedMap[axisId] || null
    });
  })}

      {}
      <div style={s.card}>
        <div style={s.title}>Playground Command (compare with base)</div>
        <div style={s.commandWrap}>
          <div style={s.commandHeader}>
            <div style={s.headerLeft}>
              <div style={s.badge(playgroundVerified)}>
                <span style={s.badgeDot(playgroundVerified)} />
                {playgroundVerified ? "Verified" : "Not Verified"}
              </div>
              {}
              {matchedSiblingCell && <span style={s.matchedHint}>
                  matches <code style={{
    fontFamily: "Menlo, monospace"
  }}>
                    {matchedSiblingCell.match.strategy}
                  </code>
                  <button type="button" style={s.matchedSwitchBtn} onClick={() => {
    const m = matchedSiblingCell.match;
    setDeltas(initialDeltas());
    const hash = new URLSearchParams(m).toString();
    window.location.hash = hash;
    window.dispatchEvent(new CustomEvent("sglang-deploy-sel", {
      detail: m
    }));
  }}>
                    switch base →
                  </button>
                </span>}
              <div style={s.runModeWrap} role="tablist" aria-label="Output format">
                <span style={s.runModeChip(runMode === "python")} onClick={() => setRunMode("python")} role="tab" aria-selected={runMode === "python"}>
                  Python
                </span>
                <span style={s.runModeChipLast(runMode === "docker")} onClick={() => setRunMode("docker")} role="tab" aria-selected={runMode === "docker"}>
                  Docker
                </span>
              </div>
            </div>
            <div style={s.iconRow}>
              <button style={s.iconButton} onClick={handleCopy}>
                {copied ? "✓ Copied" : "⧉ Copy"}
              </button>
              <button style={s.iconButton} onClick={() => setModal("curl")}>$ cURL</button>
              <button style={s.iconButton} onClick={() => setModal("env")}>⚙ Env</button>
              {}
              {!playgroundVerified && baseCell && <button style={{
    ...s.iconButton,
    borderColor: isDark ? "#FDBA74" : "#FB923C",
    color: isDark ? "#FDBA74" : "#C2410C",
    fontWeight: 600
  }} onClick={() => setModal("submit")} title="I verified this command on my hardware — open a pre-filled GitHub issue to land it as a cookbook cell.">
                  Submit ↗
                </button>}
            </div>
          </div>
          <pre style={s.commandPre}>
            {baseCell ? diffLines.map((d, i) => <span key={i} style={d.kind === "added" ? s.diffLineAdded : d.kind === "removed" ? s.diffLineRemoved : s.diffLineUnchanged}>
                {d.kind === "added" ? "+ " : d.kind === "removed" ? "- " : "  "}
                {d.line}{"\n"}
              </span>) : "# No verified base cell at the current Deployment selection.\n# Pick a supported hardware/variant in the Deployment panel to populate the playground base."}
          </pre>
          {pgSpecHint && <div style={s.mtpWarn}>
              ⚠️ Speculative decoding ({pgSpecAlgoName}) is on — SGLang resets <code>--max-running-requests</code> to <strong>48</strong> when it isn't set. Add <code>--max-running-requests &lt;N&gt;</code> sized for your target concurrency.
            </div>}
          {pgCpDpHint && <div style={s.mtpWarn}>
              ⚠️ Interleave prefill-CP together with DP-Attention: current SGLang releases assert <code>dp_size == 1</code> for the interleave layout, so this command fails at startup. Combined CP + DP-Attention support is planned upstream — keep one of the two off until it lands.
            </div>}
        </div>
      </div>

      {}
      {pdRouter && routerText && <div style={s.card}>
          <div style={s.title}>Router</div>
          <div style={{
    fontSize: 11,
    opacity: 0.7,
    margin: "0 0 6px"
  }}>
            Run after both roles are up. Substitute <code>{"<prefill-host>"}</code> /{" "}
            <code>{"<decode-host>"}</code> with reachable hosts (both <code>127.0.0.1</code>{" "}
            on a same-host deployment). Client traffic (cURL) targets this router.
          </div>
          <div style={s.commandWrap}>
            <div style={s.commandHeader}>
              <div style={{
    fontSize: 11,
    opacity: 0.7
  }}>port {pdRouter.port}</div>
              <button style={s.iconButton} onClick={() => {
    navigator.clipboard.writeText(routerText);
    setRouterCopied(true);
    setTimeout(() => setRouterCopied(false), 1200);
  }}>
                {routerCopied ? "✓ Copied" : "⧉ Copy"}
              </button>
            </div>
            <pre style={s.commandPre}>{routerText}</pre>
          </div>
        </div>}

      {}
      {modal === "curl" && <dialog ref={openDialog} style={s.dialog} onClose={() => setModal(null)} onClick={onDialogClick}>
          <div style={s.modalHeader}>
            <div style={s.modalTitle}>cURL example</div>
            <button style={s.modalCloseBtn} onClick={() => setModal(null)} aria-label="Close">×</button>
          </div>
          <div style={s.commandWrap}>
            <div style={s.commandHeader}>
              <div style={{
    fontSize: 11,
    opacity: 0.7
  }}>
                Model: <code>{modelName || "(unresolved)"}</code>
              </div>
              <button style={s.iconButton} onClick={copyCurl}>
                {curlCopied ? "✓ Copied" : "⧉ Copy"}
              </button>
            </div>
            <pre style={s.commandPre}>{curlText}</pre>
          </div>
          {pdRouter && <p style={{
    fontSize: 11,
    opacity: 0.85,
    marginTop: 8
  }}>
              <strong>PD-Disaggregation active</strong> — this targets the router on
              {" "}<code>:{pdRouter.port}</code>; client traffic must not hit the role
              servers directly.
            </p>}
          <p style={{
    fontSize: 11,
    opacity: 0.7,
    marginTop: 8
  }}>
            Edit <code>CURL_HOST</code> / <code>CURL_PORT</code> in the Env panel.
          </p>
        </dialog>}

      {}
      {modal === "env" && <dialog ref={openDialog} style={s.dialog} onClose={() => setModal(null)} onClick={onDialogClick}>
          <div style={s.modalHeader}>
            <div style={s.modalTitle}>Env / placeholder values</div>
            <button style={s.modalCloseBtn} onClick={() => setModal(null)} aria-label="Close">×</button>
          </div>
            {placeholderGroups.curl.length > 0 && <div>
                <div style={s.sectionHeading}>cURL placeholders</div>
                {placeholderGroups.curl.map(({key, label}) => <div key={key} style={s.formField}>
                    <label style={s.formLabel}>
                      {label} <code style={{
    opacity: 0.6
  }}>{`{{${key}}}`}</code>
                    </label>
                    <input style={s.formInput} value={envDraft[key] ?? ""} onChange={e => setEnvDraft({
    ...envDraft,
    [key]: e.target.value
  })} />
                  </div>)}
              </div>}
            {placeholderGroups.command.length > 0 && <div>
                <div style={s.sectionHeading}>Command placeholders</div>
                {placeholderGroups.command.map(({key, label}) => <div key={key} style={s.formField}>
                    <label style={s.formLabel}>
                      {label} <code style={{
    opacity: 0.6
  }}>{`{{${key}}}`}</code>
                    </label>
                    <input style={s.formInput} value={envDraft[key] ?? ""} onChange={e => setEnvDraft({
    ...envDraft,
    [key]: e.target.value
  })} />
                  </div>)}
              </div>}
            <div style={{
    display: "flex",
    justifyContent: "flex-end",
    gap: 8,
    marginTop: 16
  }}>
              <button style={{
    ...s.iconButton,
    padding: "6px 14px"
  }} onClick={() => setModal(null)}>Cancel</button>
              <button style={s.primaryBtn} onClick={() => {
    saveEnv(envDraft);
    setModal(null);
  }}>Save</button>
            </div>
          <p style={{
    fontSize: 11,
    opacity: 0.7,
    marginTop: 10
  }}>
            Values persist in localStorage and are shared with the Deployment panel.
          </p>
        </dialog>}

      {}
      {modal === "submit" && <dialog ref={openDialog} style={s.dialog} onClose={() => setModal(null)} onClick={onDialogClick}>
            <div style={s.modalHeader}>
              <div style={s.modalTitle}>Submit verified cell</div>
              <button style={s.modalCloseBtn} onClick={() => setModal(null)} aria-label="Close">×</button>
            </div>
            <p style={{
    fontSize: 12,
    opacity: 0.85,
    marginTop: 0,
    marginBottom: 12
  }}>
              You've put together a combination that isn't in the verified
              catalog yet. After you've run the command end-to-end on the
              target hardware, this submits a pre-filled GitHub Issue that a
              maintainer can convert into a PR.
            </p>

            <div style={s.sectionHeading}>Combination</div>
            <code style={{
    fontFamily: "Menlo, monospace",
    fontSize: 12
  }}>
              {base.hw} / {base.variant} / {base.quant} / {base.strategy} / {base.nodes}
            </code>
            {}
            {(() => {
    const adds = diffLines.filter(d => d.kind === "added");
    const rems = diffLines.filter(d => d.kind === "removed");
    if (adds.length === 0 && rems.length === 0) return null;
    return <>
                  <div style={{
      ...s.sectionHeading,
      marginTop: 10
    }}>
                    Overrides vs base ({adds.length} added · {rems.length} removed)
                  </div>
                  <pre style={{
      margin: 0,
      padding: "8px 10px",
      background: isDark ? "#111827" : "#f5f5f5",
      border: `1px solid ${isDark ? "#374151" : "#e5e7eb"}`,
      borderRadius: 4,
      fontFamily: "'Menlo', 'Monaco', 'Courier New', monospace",
      fontSize: 12,
      lineHeight: 1.4,
      maxHeight: 160,
      overflowY: "auto",
      whiteSpace: "pre-wrap"
    }}>
                    {[...rems, ...adds].map((d, i) => <div key={i} style={d.kind === "added" ? s.diffLineAdded : s.diffLineRemoved}>
                        {d.kind === "added" ? "+ " : "- "}
                        {d.line.replace(/^\s*/, "")}
                      </div>)}
                  </pre>
                </>;
  })()}

            <div style={{
    ...s.sectionHeading,
    marginTop: 14
  }}>Attestation (all required)</div>
            <div style={s.formField}>
              <label style={{
    fontSize: 12,
    display: "flex",
    alignItems: "flex-start",
    gap: 6
  }}>
                <input type="checkbox" checked={submitAttest.ranCommand} onChange={e => setSubmitAttest({
    ...submitAttest,
    ranCommand: e.target.checked
  })} />
                I ran this exact command on the listed hardware.
              </label>
              <label style={{
    fontSize: 12,
    display: "flex",
    alignItems: "flex-start",
    gap: 6
  }}>
                <input type="checkbox" checked={submitAttest.reachedReady} onChange={e => setSubmitAttest({
    ...submitAttest,
    reachedReady: e.target.checked
  })} />
                The server reached READY and answered a cURL request successfully.
              </label>
              <label style={{
    fontSize: 12,
    display: "flex",
    alignItems: "flex-start",
    gap: 6
  }}>
                <input type="checkbox" checked={submitAttest.outputCorrect} onChange={e => setSubmitAttest({
    ...submitAttest,
    outputCorrect: e.target.checked
  })} />
                Output looked correct on at least one prompt.
              </label>
            </div>

            <div style={{
    ...s.sectionHeading,
    marginTop: 14
  }}>SGLang version (required)</div>
            <input style={{
    ...s.formInput,
    width: "100%",
    boxSizing: "border-box"
  }} placeholder="sglang==0.5.4  (or git SHA abc1234)" value={submitDraft.sglangVersion} onChange={e => setSubmitDraft({
    ...submitDraft,
    sglangVersion: e.target.value
  })} />

            <div style={{
    ...s.sectionHeading,
    marginTop: 14
  }}>Benchmark result (optional)</div>
            <input style={{
    ...s.formInput,
    width: "100%",
    boxSizing: "border-box"
  }} placeholder="TTFT 95 ms / TPOT 18 ms / 1820 tok/s @ bs=64" value={submitDraft.benchResult} onChange={e => setSubmitDraft({
    ...submitDraft,
    benchResult: e.target.value
  })} />

            <div style={{
    ...s.sectionHeading,
    marginTop: 14
  }}>Notes / caveats (optional)</div>
            <textarea style={{
    ...s.formInput,
    width: "100%",
    boxSizing: "border-box",
    minHeight: 110,
    resize: "vertical",
    fontFamily: "inherit"
  }} placeholder="Cluster config, env-var quirks, NIC mappings, multi-node bootstrap details, …" value={submitDraft.notes} onChange={e => setSubmitDraft({
    ...submitDraft,
    notes: e.target.value
  })} />

            <div style={{
    display: "flex",
    justifyContent: "flex-end",
    gap: 8,
    marginTop: 16,
    alignItems: "center"
  }}>
              {!submitReady && <span style={{
    fontSize: 11,
    opacity: 0.7,
    marginRight: "auto"
  }}>
                  Tick all attestations and fill SGLang version to enable submit.
                </span>}
              <button style={{
    ...s.iconButton,
    padding: "6px 14px"
  }} onClick={() => setModal(null)}>Cancel</button>
              <a href={submitReady ? submitUrl : undefined} target="_blank" rel="noopener noreferrer" onClick={e => {
    if (!submitReady) e.preventDefault(); else setModal(null);
  }} style={{
    ...s.primaryBtn,
    textDecoration: "none",
    display: "inline-flex",
    alignItems: "center",
    opacity: submitReady ? 1 : 0.4,
    cursor: submitReady ? "pointer" : "not-allowed"
  }}>
                Open submission on GitHub →
              </a>
            </div>
          <p style={{
    fontSize: 11,
    opacity: 0.7,
    marginTop: 10
  }}>
            The CTA opens a pre-filled GitHub Issue using the
            <code> 3-playground-verified-cell.yml</code> template. A
            maintainer with the listed hardware will review and convert it
            into a cookbook PR.
          </p>
        </dialog>}
    </div>;
};

export const config = {
  modelName: "DeepSeek-V4.1",
  latencyPercentile: "P50",
  supportedHardware: ["h200", "b200", "b300", "gb300", "mi350x"],
  matchDims: [{
    id: "strategy",
    title: "Strategy",
    options: [{
      id: "low-latency",
      label: "Low-Latency"
    }, {
      id: "high-throughput",
      label: "High-Throughput"
    }]
  }],
  modelNames: {
    default: "deepseek-ai/DeepSeek-V4.1-Flash"
  },
  placeholders: {
    HOST_IP: {
      target: "command",
      label: "Bind host",
      default: "0.0.0.0"
    },
    PORT: {
      target: "command",
      label: "Bind port",
      default: "30000"
    },
    HF_TOKEN: {
      target: "command",
      label: "HF token (Docker)",
      default: "<your-hf-token>"
    },
    CURL_HOST: {
      target: "curl",
      label: "Server host",
      default: "localhost"
    },
    CURL_PORT: {
      target: "curl",
      label: "Server port",
      default: "30000"
    }
  },
  curl: `curl http://{{CURL_HOST}}:{{CURL_PORT}}/v1/chat/completions \\
-H 'Content-Type: application/json' \\
-d '{ "model": "{{MODEL_NAME}}", "messages": [{"role":"user","content":"Hello"}] }'`,
  dockerImages: {
    h200: "lmsysorg/sglang:dev-dsv41",
    b200: "lmsysorg/sglang:dev-dsv41",
    b300: "lmsysorg/sglang:dev-dsv41",
    gb300: "lmsysorg/sglang:dev-dsv41",
    mi350x: "lmsysorg/sglang:dev-dsv41-mi35x"
  },
  github: {
    cookbookModel: "deepseek-ai/deepseek-v4.1"
  },
  playgroundFeatures: {
    attention: {
      knobs: [{
        id: "tp",
        label: "TP",
        values: [null, 4, 8]
      }]
    },
    moe: {
      ep: {
        label: "EP",
        values: [null, 4, 8]
      }
    },
    parsers: {
      items: [{
        id: "reasoning",
        label: "Reasoning Parser",
        flag: "--reasoning-parser auto"
      }, {
        id: "toolCall",
        label: "Tool Call Parser",
        flag: "--tool-call-parser auto"
      }]
    },
    speculative: {
      options: [{
        id: "current",
        label: "Inherited from base"
      }, {
        id: "off",
        label: "Off (greedy)"
      }, {
        id: "dspark",
        label: "DSpark",
        flags: ["--speculative-algorithm DSPARK", "--speculative-dspark-block-size 5"]
      }]
    },
    pdDisagg: {
      incompatibleSpeculativeAlgorithms: ["DSPARK"],
      modes: [{
        id: "off",
        label: "Off"
      }, {
        id: "prefill",
        label: "Prefill role"
      }, {
        id: "decode",
        label: "Decode role"
      }],
      transferBackends: [{
        id: "mooncake",
        label: "Mooncake (TCP)",
        env: ["MOONCAKE_PROTOCOL=tcp", "MC_FORCE_TCP=1"]
      }],
      ibDevices: [{
        id: "auto",
        label: "Auto"
      }],
      router: {
        port: 8000,
        command: `sglang-router launch \\
  --pd-disaggregation \\
  --prefill http://<prefill-host>:{{PREFILL_PORT}} 8998 \\
  --decode http://<decode-host>:{{DECODE_PORT}} \\
  --host 0.0.0.0 --port {{ROUTER_PORT}}`
      }
    },
    flagSelects: [{
      id: "dsparkBlockSize",
      title: "DSpark Proposed Draft Tokens",
      showWhen: base => base.specAlgorithm === "DSPARK",
      control: "slider",
      stripPrefixes: ["--speculative-dspark-block-size"],
      options: [{
        id: "auto",
        label: "Checkpoint default"
      }, {
        id: "1",
        label: "1",
        flags: ["--speculative-dspark-block-size 1"]
      }, {
        id: "2",
        label: "2",
        flags: ["--speculative-dspark-block-size 2"]
      }, {
        id: "3",
        label: "3",
        flags: ["--speculative-dspark-block-size 3"]
      }, {
        id: "4",
        label: "4",
        flags: ["--speculative-dspark-block-size 4"]
      }, {
        id: "5",
        label: "5",
        flags: ["--speculative-dspark-block-size 5"]
      }]
    }, {
      id: "engramHostTable",
      title: "Engram Host-Resident Tables",
      control: "select",
      options: [{
        id: "off",
        label: "Off (default)"
      }, {
        id: "on",
        label: "On (larger KV pool)",
        env: ["SGLANG_ENABLE_DSV41_ENGRAM_HOST_TABLE=1"]
      }]
    }, {
      id: "decoderSwaBoundedReplay",
      title: "Decoder SWA Bounded Replay",
      control: "select",
      options: [{
        id: "off",
        label: "Off (default)"
      }, {
        id: "on",
        label: "On (faster prefill)",
        flags: ["--enable-decoder-swa-bounded-replay"]
      }]
    }]
  },
  cells: [{
    match: {
      hw: "gb300",
      strategy: "low-latency"
    },
    nnodes: 1,
    verified: true,
    flags: ["--trust-remote-code", "--model-path {{MODEL_NAME}}", "--tp 4", "--ep-size 4", "--mem-fraction-static 0.8", "--speculative-algorithm DSPARK", "--speculative-dspark-block-size 5", "--reasoning-parser auto", "--tool-call-parser auto", "--host {{HOST_IP}}", "--port {{PORT}}"]
  }, {
    match: {
      hw: "gb300",
      strategy: "high-throughput"
    },
    nnodes: 1,
    verified: true,
    flags: ["--trust-remote-code", "--model-path {{MODEL_NAME}}", "--tp 4", "--ep-size 4", "--max-running-requests 256", "--reasoning-parser auto", "--tool-call-parser auto", "--host {{HOST_IP}}", "--port {{PORT}}"]
  }, {
    match: {
      hw: "h200",
      strategy: "low-latency"
    },
    nnodes: 1,
    verificationStatus: "in-progress",
    flags: ["--trust-remote-code", "--model-path {{MODEL_NAME}}", "--tp 8", "--ep-size 8", "--attention-backend dsv4", "--moe-runner-backend flashinfer_mxfp4", "--enable-decoder-swa-bounded-replay", "--reasoning-parser auto", "--tool-call-parser auto", "--host {{HOST_IP}}", "--port {{PORT}}"]
  }, {
    match: {
      hw: "h200",
      strategy: "high-throughput"
    },
    nnodes: 1,
    verificationStatus: "in-progress",
    flags: ["--trust-remote-code", "--model-path {{MODEL_NAME}}", "--tp 8", "--ep-size 8", "--attention-backend dsv4", "--moe-runner-backend flashinfer_mxfp4", "--max-running-requests 256", "--reasoning-parser auto", "--tool-call-parser auto", "--host {{HOST_IP}}", "--port {{PORT}}"]
  }, {
    match: {
      hw: "b200",
      strategy: "low-latency"
    },
    nnodes: 1,
    verificationStatus: "in-progress",
    flags: ["--trust-remote-code", "--model-path {{MODEL_NAME}}", "--tp 4", "--ep-size 4", "--mem-fraction-static 0.8", "--speculative-algorithm DSPARK", "--speculative-dspark-block-size 5", "--reasoning-parser auto", "--tool-call-parser auto", "--host {{HOST_IP}}", "--port {{PORT}}"]
  }, {
    match: {
      hw: "b200",
      strategy: "high-throughput"
    },
    nnodes: 1,
    verificationStatus: "in-progress",
    flags: ["--trust-remote-code", "--model-path {{MODEL_NAME}}", "--tp 4", "--ep-size 4", "--max-running-requests 256", "--reasoning-parser auto", "--tool-call-parser auto", "--host {{HOST_IP}}", "--port {{PORT}}"]
  }, {
    match: {
      hw: "b300",
      strategy: "low-latency"
    },
    nnodes: 1,
    verificationStatus: "in-progress",
    flags: ["--trust-remote-code", "--model-path {{MODEL_NAME}}", "--tp 4", "--ep-size 4", "--mem-fraction-static 0.8", "--speculative-algorithm DSPARK", "--speculative-dspark-block-size 5", "--reasoning-parser auto", "--tool-call-parser auto", "--host {{HOST_IP}}", "--port {{PORT}}"]
  }, {
    match: {
      hw: "b300",
      strategy: "high-throughput"
    },
    nnodes: 1,
    verificationStatus: "in-progress",
    flags: ["--trust-remote-code", "--model-path {{MODEL_NAME}}", "--tp 4", "--ep-size 4", "--max-running-requests 256", "--reasoning-parser auto", "--tool-call-parser auto", "--host {{HOST_IP}}", "--port {{PORT}}"]
  }, {
    match: {
      hw: "mi350x",
      strategy: "low-latency"
    },
    nnodes: 1,
    verified: true,
    env: ["SGLANG_USE_AITER=1", "SGLANG_MOE_PADDING=1", "AITER_FLYDSL_FORCE_REDUCE=1", "ROCM_QUICK_REDUCE_QUANTIZATION=NONE"],
    flags: ["--trust-remote-code", "--model-path {{MODEL_NAME}}", "--tp 4", "--ep-size 4", "--disable-radix-cache", "--mem-fraction-static 0.8", "--speculative-algorithm DSPARK", "--speculative-dspark-block-size 5", "--cuda-graph-max-bs 64", "--cuda-graph-backend-prefill breakable", "--cuda-graph-max-bs-prefill 4096", "--reasoning-parser auto", "--tool-call-parser auto", "--host {{HOST_IP}}", "--port {{PORT}}"]
  }, {
    match: {
      hw: "mi350x",
      strategy: "high-throughput"
    },
    nnodes: 1,
    verified: true,
    env: ["SGLANG_USE_AITER=1", "SGLANG_MOE_PADDING=1", "AITER_FLYDSL_FORCE_REDUCE=1", "ROCM_QUICK_REDUCE_QUANTIZATION=NONE"],
    flags: ["--trust-remote-code", "--model-path {{MODEL_NAME}}", "--tp 4", "--ep-size 4", "--disable-radix-cache", "--cuda-graph-backend-prefill breakable", "--cuda-graph-max-bs-prefill 4096", "--reasoning-parser auto", "--tool-call-parser auto", "--host {{HOST_IP}}", "--port {{PORT}}"]
  }]
};

export const Deployment = ({config, benchmarks}) => {
  if (!config) {
    return <div style={{
      padding: 12,
      color: "#b91c1c"
    }}>Deployment: missing <code>config</code> prop</div>;
  }
  const HARDWARE_CATALOG = {
    blackwell: [{
      id: "b300",
      label: "B300",
      vram: "288GB"
    }, {
      id: "gb300",
      label: "GB300",
      vram: "288GB"
    }, {
      id: "b200",
      label: "B200",
      vram: "192GB"
    }, {
      id: "gb200",
      label: "GB200",
      vram: "192GB"
    }, {
      id: "dgx-spark",
      label: "DGX Spark",
      vram: "128GB",
      multiNodeDockerFlags: ["--ulimit memlock=-1:-1", "--cap-add IPC_LOCK", "--device /dev/infiniband"]
    }],
    hopper: [{
      id: "h200",
      label: "H200",
      vram: "141GB"
    }, {
      id: "h100",
      label: "H100",
      vram: "80GB"
    }, {
      id: "h20-3e",
      label: "H20-3e",
      vram: "141GB"
    }, {
      id: "h800",
      label: "H800",
      vram: "80GB"
    }],
    amd: [{
      id: "mi300x",
      label: "MI300X",
      vram: "192GB"
    }, {
      id: "mi325x",
      label: "MI325X",
      vram: "256GB"
    }, {
      id: "mi350x",
      label: "MI350X",
      vram: "288GB"
    }, {
      id: "mi355x",
      label: "MI355X",
      vram: "288GB"
    }],
    npu: [{
      id: "a3",
      label: "Atlas 800I A3",
      vram: "64GB/die"
    }]
  };
  const makeStyles = isDark => ({
    container: {
      maxWidth: "900px",
      margin: "0 auto",
      display: "flex",
      flexDirection: "column",
      gap: "3px"
    },
    card: {
      padding: "5px 10px",
      border: `1px solid ${isDark ? "#374151" : "#e5e7eb"}`,
      borderLeft: `3px solid ${isDark ? "#E85D4D" : "#D45D44"}`,
      borderRadius: "4px",
      display: "flex",
      alignItems: "center",
      gap: "10px",
      background: isDark ? "#1f2937" : "#fff"
    },
    cardColumn: {
      padding: "5px 10px",
      border: `1px solid ${isDark ? "#374151" : "#e5e7eb"}`,
      borderLeft: `3px solid ${isDark ? "#E85D4D" : "#D45D44"}`,
      borderRadius: "4px",
      display: "flex",
      flexDirection: "column",
      gap: "4px",
      background: isDark ? "#1f2937" : "#fff"
    },
    title: {
      fontSize: "12px",
      fontWeight: "600",
      minWidth: "108px",
      flexShrink: 0,
      color: isDark ? "#e5e7eb" : "inherit"
    },
    vendorRow: {
      display: "flex",
      alignItems: "center",
      gap: "6px"
    },
    vendorLabel: {
      fontSize: "10px",
      fontWeight: "600",
      color: isDark ? "#9ca3af" : "#6b7280",
      width: "68px",
      flexShrink: 0,
      textTransform: "uppercase",
      letterSpacing: "0.04em"
    },
    itemsGrid: () => ({
      display: "grid",
      gridTemplateColumns: "repeat(auto-fit, minmax(72px, 1fr))",
      gap: "4px",
      flex: 1
    }),
    labelBase: {
      padding: "2px 8px",
      border: `1px solid ${isDark ? "#9ca3af" : "#d1d5db"}`,
      borderRadius: "3px",
      cursor: "pointer",
      display: "inline-flex",
      flexDirection: "column",
      alignItems: "center",
      justifyContent: "center",
      fontWeight: "500",
      fontSize: "12px",
      transition: "all 0.2s",
      userSelect: "none",
      minHeight: "26px",
      textAlign: "center",
      background: isDark ? "#374151" : "#fff",
      color: isDark ? "#e5e7eb" : "inherit"
    },
    checked: {
      background: "#D45D44",
      color: "white",
      borderColor: "#D45D44"
    },
    disabled: {
      cursor: "not-allowed",
      opacity: 0.4
    },
    subtitle: {
      display: "block",
      fontSize: "9px",
      marginTop: "1px",
      lineHeight: "1.1",
      opacity: 0.7
    },
    commandWrap: {
      position: "relative",
      flex: 1,
      background: isDark ? "#111827" : "#f5f5f5",
      borderRadius: "6px",
      border: `1px solid ${isDark ? "#374151" : "#e5e7eb"}`,
      overflow: "hidden"
    },
    commandHeader: {
      display: "flex",
      flexWrap: "wrap",
      justifyContent: "space-between",
      alignItems: "center",
      gap: "6px 10px",
      padding: "6px 10px",
      borderBottom: `1px solid ${isDark ? "#374151" : "#e5e7eb"}`,
      background: isDark ? "#1f2937" : "#fafafa"
    },
    commandPre: {
      padding: "12px 16px",
      fontFamily: "'Menlo', 'Monaco', 'Courier New', monospace",
      fontSize: "12px",
      lineHeight: "1.5",
      color: isDark ? "#e5e7eb" : "#374151",
      whiteSpace: "pre-wrap",
      overflowX: "auto",
      margin: 0
    },
    mtpWarn: {
      margin: "8px 0 0",
      padding: "8px 12px",
      borderRadius: "8px",
      fontSize: "12px",
      lineHeight: "1.45",
      background: isDark ? "#78350f" : "#fef3c7",
      color: isDark ? "#fde68a" : "#92400e",
      border: `1px solid ${isDark ? "#92400e" : "#fcd34d"}`
    },
    badge: status => ({
      display: "inline-flex",
      alignItems: "center",
      gap: "6px",
      padding: "2px 8px",
      borderRadius: "10px",
      background: ({
        verified: isDark ? "#064e3b" : "#d1fae5",
        "in-progress": isDark ? "#1e3a8a" : "#dbeafe",
        unverified: isDark ? "#78350f" : "#fef3c7"
      })[verifyStatusOf(status)],
      color: ({
        verified: isDark ? "#a7f3d0" : "#065f46",
        "in-progress": isDark ? "#bfdbfe" : "#1e40af",
        unverified: isDark ? "#fde68a" : "#92400e"
      })[verifyStatusOf(status)],
      fontSize: "11px",
      fontWeight: 600,
      whiteSpace: "nowrap"
    }),
    badgeDot: status => ({
      width: "8px",
      height: "8px",
      borderRadius: "50%",
      background: ({
        verified: "#10b981",
        "in-progress": "#3b82f6",
        unverified: "#f59e0b"
      })[verifyStatusOf(status)]
    }),
    iconButton: {
      padding: "4px 10px",
      border: `1px solid ${isDark ? "#4b5563" : "#d1d5db"}`,
      borderRadius: "4px",
      background: isDark ? "#1f2937" : "#fff",
      color: isDark ? "#e5e7eb" : "#374151",
      fontSize: "11px",
      fontWeight: 500,
      cursor: "pointer",
      display: "inline-flex",
      alignItems: "center",
      gap: "4px"
    },
    iconRow: {
      display: "inline-flex",
      flexWrap: "wrap",
      gap: "6px"
    },
    runModeWrap: {
      display: "inline-flex",
      border: `1px solid ${isDark ? "#4b5563" : "#d1d5db"}`,
      borderRadius: "10px",
      overflow: "hidden",
      fontSize: "11px",
      fontWeight: 600,
      userSelect: "none"
    },
    runModeChip: active => ({
      padding: "2px 10px",
      cursor: "pointer",
      background: active ? isDark ? "#1f2937" : "#fff" : "transparent",
      color: active ? isDark ? "#e5e7eb" : "#111827" : isDark ? "#9ca3af" : "#6b7280",
      borderRight: `1px solid ${isDark ? "#4b5563" : "#d1d5db"}`
    }),
    runModeChipLast: active => ({
      padding: "2px 10px",
      cursor: "pointer",
      background: active ? isDark ? "#1f2937" : "#fff" : "transparent",
      color: active ? isDark ? "#e5e7eb" : "#111827" : isDark ? "#9ca3af" : "#6b7280"
    }),
    headerLeft: {
      display: "inline-flex",
      flexWrap: "wrap",
      alignItems: "center",
      gap: "8px"
    },
    modalBackdrop: {
      position: "fixed",
      inset: 0,
      background: "rgba(0,0,0,0.5)",
      display: "flex",
      alignItems: "center",
      justifyContent: "center",
      zIndex: 9999
    },
    modalBox: {
      background: isDark ? "#1f2937" : "#fff",
      color: isDark ? "#e5e7eb" : "#111827",
      borderRadius: "8px",
      padding: "20px",
      maxWidth: "720px",
      width: "92%",
      maxHeight: "85vh",
      overflowY: "auto",
      border: `1px solid ${isDark ? "#374151" : "#e5e7eb"}`,
      boxShadow: "0 10px 25px rgba(0,0,0,0.25)"
    },
    modalHeader: {
      display: "flex",
      justifyContent: "space-between",
      alignItems: "center",
      marginBottom: "12px"
    },
    modalTitle: {
      fontSize: "15px",
      fontWeight: 600
    },
    modalCloseBtn: {
      background: "transparent",
      border: "none",
      color: "inherit",
      fontSize: "20px",
      cursor: "pointer",
      padding: "0 6px",
      lineHeight: 1
    },
    formField: {
      display: "flex",
      flexDirection: "column",
      gap: "4px",
      marginBottom: "10px"
    },
    formLabel: {
      fontSize: "12px",
      fontWeight: 500,
      color: isDark ? "#9ca3af" : "#4b5563"
    },
    formInput: {
      padding: "6px 10px",
      fontSize: "13px",
      border: `1px solid ${isDark ? "#4b5563" : "#d1d5db"}`,
      borderRadius: "4px",
      background: isDark ? "#111827" : "#fff",
      color: isDark ? "#e5e7eb" : "#111827",
      fontFamily: "'Menlo', 'Monaco', 'Courier New', monospace"
    },
    sectionHeading: {
      fontSize: "12px",
      fontWeight: 600,
      textTransform: "uppercase",
      letterSpacing: "0.04em",
      color: isDark ? "#9ca3af" : "#6b7280",
      margin: "12px 0 6px 0"
    },
    primaryBtn: {
      padding: "6px 14px",
      background: "#D45D44",
      color: "white",
      border: "none",
      borderRadius: "4px",
      cursor: "pointer",
      fontSize: "13px",
      fontWeight: 500
    },
    benchCard: {
      padding: "8px 12px",
      border: `1px solid ${isDark ? "#374151" : "#e5e7eb"}`,
      borderLeft: `3px solid ${isDark ? "#E85D4D" : "#D45D44"}`,
      borderRadius: "4px",
      background: isDark ? "#1f2937" : "#fff",
      display: "flex",
      flexDirection: "column",
      gap: "8px"
    },
    benchHeader: {
      display: "flex",
      flexWrap: "wrap",
      alignItems: "baseline",
      justifyContent: "space-between",
      gap: "6px 12px"
    },
    benchTitle: {
      fontSize: "13px",
      fontWeight: 600,
      color: isDark ? "#e5e7eb" : "inherit"
    },
    benchVersion: {
      fontSize: "11px",
      color: isDark ? "#9ca3af" : "#6b7280"
    },
    benchHeaderRight: {
      display: "flex",
      flexWrap: "wrap",
      alignItems: "center",
      gap: "6px 10px",
      flexShrink: 0
    },
    benchChipRow: {
      display: "flex",
      alignItems: "center",
      gap: "6px",
      flexWrap: "wrap",
      margin: "2px 0 8px"
    },
    benchChip: {
      padding: "2px 10px",
      fontSize: "12px",
      cursor: "pointer",
      border: `1px solid ${isDark ? "#4b5563" : "#d1d5db"}`,
      borderRadius: "4px",
      background: isDark ? "#1f2937" : "#fff",
      color: isDark ? "#e5e7eb" : "#374151",
      fontFamily: "'Menlo', 'Monaco', 'Courier New', monospace"
    },
    benchChipActive: {
      background: "#D45D44",
      color: "white",
      borderColor: "#D45D44"
    },
    benchBlock: {
      border: `1px solid ${isDark ? "#374151" : "#e5e7eb"}`,
      borderRadius: "4px",
      padding: "8px 10px",
      background: isDark ? "#111827" : "#fafafa"
    },
    benchBlockTitle: {
      fontSize: "11px",
      fontWeight: 600,
      textTransform: "uppercase",
      letterSpacing: "0.04em",
      color: isDark ? "#9ca3af" : "#6b7280",
      marginBottom: "4px"
    },
    benchWorkload: {
      fontSize: "11px",
      fontStyle: "italic",
      color: isDark ? "#9ca3af" : "#6b7280",
      marginBottom: "6px",
      lineHeight: "1.3"
    },
    benchRow: {
      display: "flex",
      justifyContent: "space-between",
      fontSize: "12px",
      padding: "2px 0"
    },
    benchKey: {
      color: isDark ? "#9ca3af" : "#6b7280"
    },
    benchVal: {
      color: isDark ? "#e5e7eb" : "#111827",
      fontFamily: "'Menlo', 'Monaco', 'Courier New', monospace",
      fontWeight: 500
    },
    benchNotes: {
      fontSize: "11px",
      fontStyle: "italic",
      color: isDark ? "#9ca3af" : "#6b7280"
    },
    benchLegend: {
      fontSize: "10px",
      fontStyle: "italic",
      color: isDark ? "#6b7280" : "#9ca3af",
      marginTop: "6px",
      fontFamily: "'Menlo', 'Monaco', 'Courier New', monospace"
    },
    benchEmpty: {
      fontSize: "12px",
      fontStyle: "italic",
      color: isDark ? "#9ca3af" : "#6b7280"
    },
    benchTable: {
      display: "grid",
      columnGap: 0,
      rowGap: "3px",
      marginTop: "4px",
      alignItems: "baseline"
    },
    benchTableHead: {
      textAlign: "right",
      fontWeight: 500,
      fontSize: "11px",
      color: isDark ? "#9ca3af" : "#6b7280",
      paddingLeft: "16px",
      paddingBottom: "4px",
      whiteSpace: "nowrap"
    },
    benchTableCornerHead: {
      paddingBottom: "4px"
    },
    benchTableSeparator: {
      gridColumn: "1 / -1",
      height: "1px",
      background: isDark ? "#374151" : "#e5e7eb",
      marginTop: "-3px"
    },
    benchTableLabel: {
      textAlign: "left",
      fontSize: "12px",
      color: isDark ? "#9ca3af" : "#6b7280",
      whiteSpace: "nowrap"
    },
    benchTableValue: {
      textAlign: "right",
      fontSize: "12px",
      color: isDark ? "#e5e7eb" : "#111827",
      fontFamily: "'Menlo', 'Monaco', 'Courier New', monospace",
      fontWeight: 500,
      paddingLeft: "16px",
      whiteSpace: "nowrap"
    },
    benchTableValueMissing: {
      color: isDark ? "#6b7280" : "#9ca3af"
    }
  });
  const VERIFY_LABEL = {
    verified: "Verified",
    "in-progress": "Final Verification In Progress",
    unverified: "Not Verified"
  };
  const verifyStatusOf = v => typeof v === "string" ? VERIFY_LABEL[v] ? v : "unverified" : v ? "verified" : "unverified";
  const cellVerifyStatus = (c, sel) => {
    if (!c) return "unverified";
    const v = typeof c.verificationStatus === "function" ? c.verificationStatus(sel) : c.verificationStatus;
    return verifyStatusOf(v ?? c.verified);
  };
  const LEGACY_MATCH_DIMS = [{
    id: "variant",
    title: "Model Variant",
    optionsKey: "variants"
  }, {
    id: "quant",
    title: "Quantization",
    optionsKey: "quantizations"
  }, {
    id: "strategy",
    title: "Strategy",
    optionsKey: "strategies"
  }, {
    id: "nodes",
    title: "Nodes",
    optionsKey: "nodesOptions"
  }];
  const matchDimSpecs = (config.matchDims || LEGACY_MATCH_DIMS).map(d => ({
    ...d,
    options: d.options || config[d.optionsKey] || []
  }));
  const overlayDimSpecs = config.overlayDims || [];
  const commandBuilder = config.commandBuilder || null;
  const DIMENSIONS = ["hw", ...matchDimSpecs.map(d => d.id)];
  const optionVisible = (opt, sel) => typeof opt.showWhen !== "function" || opt.showWhen(sel);
  const optionDisabled = (opt, sel) => typeof opt.disabled === "function" ? opt.disabled(sel) : !!opt.disabled;
  const visibleOptions = (spec, sel) => (spec.options || []).filter(o => optionVisible(o, sel));
  const rowVisible = (spec, sel) => (typeof spec.showWhen !== "function" || spec.showWhen(sel)) && visibleOptions(spec, sel).length > 0;
  const overlayPick = sel => {
    const picked = [];
    for (const spec of config.overlayDims || []) {
      if (!rowVisible(spec, sel)) continue;
      const opt = (spec.options || []).find(o => o.id === sel[spec.id]);
      if (opt && !optionDisabled(opt, sel)) picked.push(opt);
    }
    return picked;
  };
  const overlayPart = (sel, key) => {
    const out = [];
    for (const opt of overlayPick(sel)) {
      const add = typeof opt[key] === "function" ? opt[key](sel) : opt[key];
      if (add) out.push(...add);
    }
    return out;
  };
  const overlayCompose = (cellFlags, sel) => {
    const strip = overlayPart(sel, "stripPrefixes");
    const add = overlayPart(sel, "flags");
    if (!strip.length) return [...cellFlags || [], ...add];
    const used = new Set();
    const replacementsFor = tok => {
      const out = [];
      add.forEach((f, i) => {
        if (used.has(i) || f.split(/[\s=]/)[0] !== tok) return;
        used.add(i);
        out.push(f);
      });
      return out;
    };
    const out = [];
    for (const f of cellFlags || []) {
      const tok = f.split(/[\s=]/)[0];
      if (!strip.includes(tok)) out.push(f); else out.push(...replacementsFor(tok));
    }
    add.forEach((f, i) => {
      if (!used.has(i)) out.push(f);
    });
    return out;
  };
  const optionSoft = (opt, sel) => typeof opt.soft === "function" ? opt.soft(sel) : !!opt.soft;
  const findCell = (cells, sel) => cells.find(c => DIMENSIONS.every(d => c.match[d] === sel[d]));
  const findBenchmark = (list, sel) => {
    const hits = (list || []).filter(b => Object.entries(b.match || ({})).every(([k, v]) => sel[k] === v));
    return hits.sort((a, b) => Object.keys(b.match).length - Object.keys(a.match).length)[0] || null;
  };
  const normalizeSpeed = speed => {
    if (!speed) return [];
    return Array.isArray(speed) ? speed : [speed];
  };
  const effectiveAccuracy = (entry, sel) => entry ? {
    ...config.defaultAccuracy && config.defaultAccuracy[sel.variant] || ({}),
    ...entry.accuracy || ({})
  } : {};
  const benchmarkIsEmpty = (entry, accuracy) => {
    for (const m of normalizeSpeed(entry && entry.speed)) {
      if (m && typeof m === "object") {
        for (const [key, v] of Object.entries(m)) {
          if (key === "workload") continue;
          if (v !== null && v !== undefined) return false;
        }
      }
    }
    if (accuracy && typeof accuracy === "object") {
      for (const v of Object.values(accuracy)) {
        if (v !== null && v !== undefined) return false;
      }
    }
    return true;
  };
  const isOptionAvailable = (cells, sel, dim, value) => {
    const idx = DIMENSIONS.indexOf(dim);
    const higher = DIMENSIONS.slice(0, idx);
    return cells.some(c => c.match[dim] === value && higher.every(d => c.match[d] === sel[d]));
  };
  const snapToValidCell = (cells, sel, dim, value) => {
    const idx = DIMENSIONS.indexOf(dim);
    const higher = DIMENSIONS.slice(0, idx);
    const lower = DIMENSIONS.slice(idx + 1);
    let best = null, bestLowerMatches = -1;
    for (const c of cells) {
      if (c.match[dim] !== value) continue;
      if (!higher.every(d => c.match[d] === sel[d])) continue;
      let s = 0;
      for (const d of lower) if (c.match[d] === sel[d]) s++;
      if (s > bestLowerMatches) {
        bestLowerMatches = s;
        best = c;
      }
    }
    if (!best) return sel;
    const next = {
      ...sel,
      [dim]: value
    };
    for (const d of lower) next[d] = best.match[d];
    return next;
  };
  const validateSelection = (cells, parsed) => {
    const valid = {};
    for (const dim of DIMENSIONS) {
      const want = parsed[dim];
      const works = cells.some(c => c.match[dim] === want && DIMENSIONS.slice(0, DIMENSIONS.indexOf(dim)).every(d => c.match[d] === valid[d]));
      if (works) {
        valid[dim] = want;
      } else {
        const fallback = cells.find(c => DIMENSIONS.slice(0, DIMENSIONS.indexOf(dim)).every(d => c.match[d] === valid[d]));
        valid[dim] = fallback ? fallback.match[dim] : want;
      }
    }
    for (const spec of overlayDimSpecs) {
      const want = parsed[spec.id];
      const opts = spec.options || [];
      const picked = opts.some(o => o.id === want) ? want : (spec.default ?? (opts[0] && opts[0].id)) ?? "";
      const withPick = {
        ...valid,
        [spec.id]: picked
      };
      const usable = visibleOptions(spec, withPick).filter(o => !optionDisabled(o, withPick));
      valid[spec.id] = usable.some(o => o.id === picked) ? picked : (usable[0] && usable[0].id) ?? picked;
    }
    return valid;
  };
  const resolveModelName = sel => {
    const keys = [`${sel.hw}|${sel.variant}|${sel.quant}`, `${sel.variant}|${sel.quant}`, `${sel.hw}|${sel.quant}`, sel.quant, sel.hw, "default"];
    for (const k of keys) {
      const hit = config.modelNames[k];
      if (hit) return hit;
    }
    return "";
  };
  const interpolate = (text, env, modelName) => text.replace(/{{(\w+)}}/g, (_, key) => key === "MODEL_NAME" ? modelName : env[key] ?? `{{${key}}}`);
  const parseNnodes = id => {
    if (Number.isInteger(id)) return id;
    if ((/^\d+$/).test(id || "")) return parseInt(id, 10);
    if (id === "single") return 1;
    const m = (/^multi-(\d+)$/).exec(id || "");
    return m ? parseInt(m[1], 10) : 1;
  };
  const cellNnodes = (cell, sel) => sel.nodes !== undefined ? parseNnodes(sel.nodes) : cell.nnodes || 1;
  const PD_SERVE_PORTS = {
    prefill: 30000,
    decode: 30100
  };
  const overlayEnv = sel => overlayPart(sel, "env");
  const overlayHints = sel => overlayPart(sel, "hints");
  const renderCommand = (cell, sel, envValues, mode = "python") => {
    if (!cell) return "# No command available for the current selection.";
    const modelName = resolveModelName(sel);
    const nnodes = cellNnodes(cell, sel);
    const multinode = nnodes > 1;
    const cellEnv = [...cell.env || [], ...overlayEnv(sel)];
    const flags = overlayCompose(cell.flags, sel);
    if (multinode) {
      const PARALLELISM_ANCHORS = new Set(["--enable-dp-attention", "--dp-size", "--dp", "--tp-size", "--tp", "--sp-degree", "--ulysses-degree", "--ring-degree"]);
      let i = flags.reduce((last, flag, index) => PARALLELISM_ANCHORS.has(flag.split(/[\s=]/)[0]) ? index : last, -1);
      if (i === -1) i = flags.findIndex(f => f.startsWith("--model-path"));
      flags.splice(i + 1, 0, `--nnodes ${nnodes}`, `--node-rank {{NODE_RANK}}`, `--dist-init-addr {{NODE0_IP}}:20000`);
    }
    const pdServePort = PD_SERVE_PORTS[sel.pdMode];
    if (pdServePort !== undefined) {
      for (let j = 0; j < flags.length; j++) {
        if (flags[j].split(/[\s=]/)[0] === "--port") {
          flags[j] = `--port ${pdServePort}`;
        }
      }
    }
    let cmd;
    if (mode === "docker") {
      const di = config.dockerImages || ({});
      const image = di[`${sel.hw}|${sel.variant}|${sel.quant}`] || di[`${sel.variant}|${sel.quant}`] || di[`${sel.hw}|${sel.quant}|${sel.strategy}`] || di[`${sel.hw}|${sel.quant}`] || di[sel.hw] || "lmsysorg/sglang:dev";
      const dockerRunCommand = typeof config.dockerRunCommand === "function" ? config.dockerRunCommand(sel) : config.dockerRunCommand || "sglang serve";
      const portFlag = flags.find(x => x.split(/[\s=]/)[0] === "--port");
      const servePort = portFlag ? portFlag.slice(("--port").length).trim() : "{{PORT}}";
      const hostNetwork = multinode || typeof config.dockerHostNetworkWhen === "function" && config.dockerHostNetworkWhen(sel, {
        flags,
        env: cellEnv
      });
      const vendorOf = hwId => {
        for (const [vendor, list] of Object.entries(HARDWARE_CATALOG)) {
          if (list.some(h => h.id === hwId)) return vendor;
        }
        const extra = (config.hardware || []).find(h => h.id === hwId);
        return extra && extra.vendor || "nvidia";
      };
      const fabricFlagsOf = hwId => {
        const extra = (config.hardware || []).find(h => h.id === hwId);
        if (extra) return extra.multiNodeDockerFlags || [];
        for (const list of Object.values(HARDWARE_CATALOG)) {
          const hit = list.find(h => h.id === hwId);
          if (hit) return hit.multiNodeDockerFlags || [];
        }
        return [];
      };
      const gpuAccessLines = vendorOf(sel.hw) === "amd" ? ["docker run", "  --device=/dev/kfd --device=/dev/dri", "  --group-add video", "  --cap-add=SYS_PTRACE --security-opt seccomp=unconfined", "  --shm-size 32g"] : vendorOf(sel.hw) === "npu" ? ["docker run --privileged --shm-size=16g", "  --device=/dev/davinci0 --device=/dev/davinci1 --device=/dev/davinci2 --device=/dev/davinci3", "  --device=/dev/davinci4 --device=/dev/davinci5 --device=/dev/davinci6 --device=/dev/davinci7", "  --device=/dev/davinci8 --device=/dev/davinci9 --device=/dev/davinci10 --device=/dev/davinci11", "  --device=/dev/davinci12 --device=/dev/davinci13 --device=/dev/davinci14 --device=/dev/davinci15", "  --device=/dev/davinci_manager", "  --device=/dev/hisi_hdc", "  -v /usr/local/sbin:/usr/local/sbin", "  -v /usr/local/Ascend/driver:/usr/local/Ascend/driver", "  -v /usr/local/Ascend/firmware:/usr/local/Ascend/firmware", "  -v /etc/ascend_install.info:/etc/ascend_install.info", "  -v /var/queue_schedule:/var/queue_schedule", "  -v ~/.cache/:/root/.cache/"] : ["docker run --gpus all", "  --shm-size 32g"];
      const dockerLines = [...gpuAccessLines, hostNetwork ? "  --network host" : `  -p ${servePort}:${servePort}`, ...multinode ? fabricFlagsOf(sel.hw).map(f => "  " + f) : [], ...vendorOf(sel.hw) === "npu" ? [] : ["  -v ~/.cache/huggingface:/root/.cache/huggingface"], ...(config.dockerMounts || []).map(mount => `  -v ${mount}`), ...config.placeholders && config.placeholders.HF_TOKEN ? [`  --env "HF_TOKEN={{HF_TOKEN}}"`] : [], ...cellEnv.map(e => `  --env ${e}`), "  --ipc=host", `  ${image}`, `  ${dockerRunCommand}`, ...flags.map(f => "    " + f)];
      cmd = dockerLines.join(" \\\n");
    } else {
      const flagBlock = flags.map(f => "  " + f).join(" \\\n");
      const envBlock = cellEnv.length ? cellEnv.join(" \\\n") + " \\\n" : "";
      cmd = `${envBlock}sglang serve \\\n${flagBlock}`;
    }
    const hintLines = [...overlayHints(sel), ...multinode && config.multiNodeHints && config.multiNodeHints[sel.hw] ? config.multiNodeHints[sel.hw] : []];
    if (hintLines.length) {
      const hint = hintLines.map(line => line.length ? "# " + line : "#").join("\n");
      cmd = `${hint}\n${cmd}`;
    }
    cmd = interpolate(cmd, envValues, modelName);
    if (multinode) {
      const header = `# Multi-node (${nnodes} nodes). Run the same command on every node with:\n` + `#   <node-rank> = 0 on the head node, 1..${nnodes - 1} on the others\n` + `#   <node0-ip>  = IP of the head node (reachable from all others)`;
      cmd = `${header}\n${cmd}`;
    }
    return cmd;
  };
  const ACCURACY_LABELS = config.accuracyLabels || [];
  const renderBenchmarkCard = entry => {
    const pct = entry && entry.latencyPercentile || config.latencyPercentile || "P50";
    const SPEED_LABELS = [["ttft_ms", `TTFT (${pct})`, "ms"], ["tpot_ms", `TPOT (${pct})`, "ms"], ["tokens_per_sec_per_gpu", "throughput per gpu", "tok/s"], ["interactivity", "interactivity", "tokens/s/user", m => m.tpot_ms != null && m.tpot_ms !== 0 ? Math.round(1000 / m.tpot_ms * 10) / 10 : null]];
    const WORKLOAD_KEYS = ["dataset", "isl", "osl", "max_concurrency"];
    const fmt = (val, unit) => {
      if (val === null || val === undefined) return null;
      return `${val}${unit ? " " + unit : ""}`;
    };
    const formatWorkloadParts = (workload, keys) => {
      if (!workload) return "";
      const parts = [];
      if (keys.has("dataset") && workload.dataset) parts.push(workload.dataset);
      if (keys.has("isl") || keys.has("osl")) {
        if (workload.isl != null || workload.osl != null) {
          parts.push(`in/out=${workload.isl != null ? workload.isl : "?"}/${workload.osl != null ? workload.osl : "?"}`);
        }
      }
      if (keys.has("max_concurrency") && workload.max_concurrency != null) {
        parts.push(`max-concurrency=${workload.max_concurrency}`);
      }
      return parts.join(", ");
    };
    const ALWAYS_PER_COLUMN = new Set(["max_concurrency"]);
    const partitionWorkload = measurements => {
      const shared = new Set();
      const differing = new Set();
      for (const k of WORKLOAD_KEYS) {
        const seen = new Set();
        let anyPresent = false;
        for (const m of measurements) {
          const v = m && m.workload ? m.workload[k] : undefined;
          if (v != null) anyPresent = true;
          seen.add(v);
        }
        if (!anyPresent) continue;
        if (ALWAYS_PER_COLUMN.has(k) || seen.size > 1) differing.add(k); else shared.add(k);
      }
      return {
        shared,
        differing
      };
    };
    const renderBenchTable = ({title, sharedText, colHeaders, rows, colCount, legend}) => {
      if (rows.length === 0) return null;
      const showColHeaders = colHeaders.length > 0 && colHeaders.some(h => h !== "");
      return <div style={s.benchBlock}>
          <div style={s.benchBlockTitle}>{title}</div>
          {sharedText && <div style={s.benchWorkload}>{sharedText}</div>}
          <div style={{
        ...s.benchTable,
        gridTemplateColumns: `max-content repeat(${colCount}, minmax(0, 1fr))`
      }}>
            {showColHeaders && <div key="corner" style={s.benchTableCornerHead}></div>}
            {showColHeaders && colHeaders.map((h, i) => <div key={`hdr-${i}`} style={s.benchTableHead}>{h}</div>)}
            {showColHeaders && <div key="sep" style={s.benchTableSeparator}></div>}
            {rows.map(r => [<div key={`lbl-${r.label}`} style={s.benchTableLabel}>{r.label}</div>, ...r.values.map((v, i) => <div key={`val-${r.label}-${i}`} style={v === null ? {
        ...s.benchTableValue,
        ...s.benchTableValueMissing
      } : s.benchTableValue}>
                  {v !== null ? v : "—"}
                </div>)])}
          </div>
          {legend && <div style={s.benchLegend}>
              {(Array.isArray(legend) ? legend : [legend]).map((line, i) => <div key={`legend-${i}`}>{line}</div>)}
            </div>}
        </div>;
    };
    const buildSpeedTable = measurements => {
      if (measurements.length === 0) return null;
      const {shared, differing} = partitionWorkload(measurements);
      const sharedText = formatWorkloadParts(measurements[0] && measurements[0].workload, shared);
      const colHeaders = measurements.map(m => formatWorkloadParts(m && m.workload, differing));
      const rows = SPEED_LABELS.map(tup => {
        const [key, label, unit, compute] = tup;
        const values = measurements.map(m => {
          const raw = compute ? compute(m) : m[key];
          return fmt(raw, unit);
        });
        return {
          label,
          values
        };
      });
      return {
        title: "Speed",
        sharedText,
        colHeaders,
        rows,
        colCount: measurements.length,
        legend: [`throughput per gpu = (input+output tokens)/elapsed/GPU`, `interactivity = 1000/TPOT(ms) (tokens/s/user)`]
      };
    };
    const buildAccuracyTable = accuracy => {
      if (!accuracy) return null;
      const rows = ACCURACY_LABELS.map(([key, label, unit]) => {
        const v = fmt(accuracy[key], unit);
        if (v === null) return null;
        return {
          label,
          values: [v]
        };
      }).filter(r => r !== null);
      if (rows.length === 0) return null;
      return {
        title: "Accuracy",
        sharedText: null,
        colHeaders: [],
        rows,
        colCount: 1
      };
    };
    const accuracy = effectiveAccuracy(entry, sel);
    const isEmpty = benchmarkIsEmpty(entry, accuracy);
    const measurements = !isEmpty ? normalizeSpeed(entry && entry.speed) : [];
    const accuracyTable = !isEmpty ? buildAccuracyTable(accuracy) : null;
    const speedTable = !isEmpty ? buildSpeedTable(measurements) : null;
    const hasBenchCmds = !isEmpty && buildBenchCommands(entry, sel) !== null;
    return <div style={s.benchCard}>
        <div style={s.benchHeader}>
          <div style={s.benchTitle}>Benchmark</div>
          <div style={s.benchHeaderRight}>
            {!isEmpty && entry && entry.sglang_version && <div style={s.benchVersion}>measured on sglang <code>{entry.sglang_version}</code></div>}
            {hasBenchCmds && <button style={s.iconButton} onClick={() => setModal("bench")}>⚡ Reproduce</button>}
          </div>
        </div>
        {isEmpty ? <div style={s.benchEmpty}>
            Benchmark data pending for this combination — submit yours via the Playground's Submit ↗ button.
          </div> : <>
            {accuracyTable && renderBenchTable(accuracyTable)}
            {speedTable && renderBenchTable(speedTable)}
            {entry && entry.notes && <div style={s.benchNotes}>{entry.notes}</div>}
          </>}
      </div>;
  };
  const buildBenchCommands = (entry, sel) => {
    const bc = config.benchmarkCommands;
    if (!bc) return null;
    const acc = effectiveAccuracy(entry, sel);
    const accuracy = [];
    if (bc.accuracy) {
      for (const [key, label] of ACCURACY_LABELS) {
        if (acc[key] == null) continue;
        const tmpl = bc.accuracy[key];
        const resolved = typeof tmpl === "string" ? tmpl : tmpl && tmpl[sel.variant] || null;
        if (resolved) accuracy.push({
          key,
          label,
          template: resolved
        });
      }
    }
    let speed = null;
    if (bc.speed && entry) {
      const ms = normalizeSpeed(entry.speed).filter(m => m && m.workload && m.workload.max_concurrency != null);
      const concurrencies = [...new Set(ms.map(m => m.workload.max_concurrency))].sort((a, b) => a - b);
      if (concurrencies.length) {
        speed = {
          template: bc.speed,
          concurrencies,
          workload: ms[0].workload,
          numPromptsOf: c => {
            const m = ms.find(x => x.workload.max_concurrency === c);
            if (m && m.workload.num_prompts != null) return m.workload.num_prompts;
            const tbl = bc.numPromptsByConc;
            if (tbl && tbl[c] != null) return tbl[c];
            return Math.max(c * 2, 200);
          }
        };
      }
    }
    if (accuracy.length === 0 && !speed) return null;
    return {
      accuracy,
      speed
    };
  };
  const buildHardwareGroups = () => {
    const supported = new Set(config.supportedHardware);
    const catalog = {};
    for (const [vendor, list] of Object.entries(HARDWARE_CATALOG)) catalog[vendor] = [...list];
    for (const hw of config.hardware || []) {
      const vendor = hw.vendor || "nvidia";
      const list = catalog[vendor] || (catalog[vendor] = []);
      const entry = {
        id: hw.id,
        label: hw.label,
        vram: hw.vram
      };
      const i = list.findIndex(x => x.id === hw.id);
      if (i >= 0) list[i] = entry; else list.push(entry);
    }
    const groups = [];
    for (const [vendor, list] of Object.entries(catalog)) {
      const items = list.filter(hw => supported.has(hw.id)).map(hw => ({
        id: hw.id,
        label: hw.label,
        subtitle: hw.vram
      }));
      if (items.length) groups.push({
        label: vendor.toUpperCase(),
        items
      });
    }
    if (config.groupHardware === false) {
      return [{
        label: null,
        items: groups.flatMap(group => group.items)
      }];
    }
    return groups;
  };
  const initialSelectionFromCells = () => {
    const first = (config.cells || [])[0];
    const sel = Object.fromEntries(DIMENSIONS.map(d => [d, first ? first.match[d] : ""]));
    for (const spec of overlayDimSpecs) {
      const opts = spec.options || [];
      sel[spec.id] = (spec.default ?? (opts[0] && opts[0].id)) ?? "";
    }
    if (!commandBuilder) return sel;
    return {
      ...sel,
      hw: commandBuilder.defaultSelection?.hw || config.supportedHardware?.[0] || "",
      ...commandBuilder.defaultSelection || ({})
    };
  };
  const normalizeBuilderSelection = parsed => {
    const out = {
      ...initialSelectionFromCells(),
      ...parsed
    };
    if (!(config.supportedHardware || []).includes(out.hw)) {
      out.hw = commandBuilder.defaultSelection?.hw || config.supportedHardware?.[0] || "";
    }
    for (const spec of overlayDimSpecs) {
      if (spec.kind === "number") {
        const value = Number.parseInt(out[spec.id], 10);
        out[spec.id] = Math.min(spec.max, Math.max(spec.min, Number.isFinite(value) ? value : Number(spec.default ?? spec.min)));
        continue;
      }
      const options = spec.options || [];
      if (!options.some(option => option.id === out[spec.id])) {
        out[spec.id] = (spec.default ?? options[0]?.id) ?? "";
      }
    }
    for (const [key, bounds] of Object.entries(commandBuilder.resource?.limits || ({}))) {
      const fallback = Number((commandBuilder.defaultSelection?.[key] ?? bounds.min) ?? 1);
      const value = Number.parseInt(out[key], 10);
      out[key] = Math.min(bounds.max, Math.max(bounds.min, Number.isFinite(value) ? value : fallback));
    }
    for (const key of ["tp_size", "ulysses_degree", "ring_degree"]) {
      const value = Number.parseInt(out[key], 10);
      out[key] = Number.isFinite(value) && value > 0 ? value : 1;
    }
    out.topology_mode = out.topology_mode === "manual" ? "manual" : "auto";
    return out;
  };
  const placeholderDefaults = schema => {
    const out = {};
    for (const [k, v] of Object.entries(schema || ({}))) out[k] = v.default ?? "";
    return out;
  };
  const [isDark, setIsDark] = useState(false);
  useEffect(() => {
    const check = () => {
      const html = document.documentElement;
      setIsDark(html.classList.contains("dark") || html.getAttribute("data-theme") === "dark" || html.style.colorScheme === "dark");
    };
    check();
    const observer = new MutationObserver(check);
    observer.observe(document.documentElement, {
      attributes: true,
      attributeFilter: ["class", "data-theme", "style"]
    });
    return () => observer.disconnect();
  }, []);
  const STORAGE_KEY = "sglang-deploy-env";
  const [env, setEnv] = useState(() => placeholderDefaults(config.placeholders));
  useEffect(() => {
    try {
      const raw = window.localStorage.getItem(STORAGE_KEY);
      if (raw) {
        const parsed = JSON.parse(raw);
        setEnv({
          ...placeholderDefaults(config.placeholders),
          ...parsed
        });
      }
    } catch {}
  }, []);
  const saveEnv = next => {
    setEnv(next);
    try {
      window.localStorage.setItem(STORAGE_KEY, JSON.stringify(next));
    } catch {}
  };
  const [sel, setSel] = useState(() => initialSelectionFromCells());
  const INTERNAL_HASH_STATE_KEY = "__sglangDeployInternalHash";
  const DEPLOYMENT_COMPONENT_ID = "deployment-configurator";
  useEffect(() => {
    const hydrate = () => {
      const raw = window.location.hash.replace(/^#/, "");
      if (!raw) return;
      const params = new URLSearchParams(raw);
      const initial = initialSelectionFromCells();
      const parsed = {
        ...initial
      };
      let touched = false;
      params.forEach((value, key) => {
        if ((key in parsed)) {
          parsed[key] = value;
          touched = true;
        }
      });
      if (!touched) return;
      setSel(commandBuilder ? normalizeBuilderSelection(parsed) : validateSelection(config.cells, parsed));
      const historyState = window.history.state;
      const isInternalHash = historyState && typeof historyState === "object" && historyState[INTERNAL_HASH_STATE_KEY] === `#${raw}`;
      if (isInternalHash) return;
      const el = document.getElementById(DEPLOYMENT_COMPONENT_ID);
      if (el) el.scrollIntoView({
        behavior: "smooth",
        block: "start"
      });
    };
    hydrate();
    window.addEventListener("hashchange", hydrate);
    return () => window.removeEventListener("hashchange", hydrate);
  }, []);
  useEffect(() => {
    const target = "#" + new URLSearchParams(sel).toString();
    if (window.location.hash !== target) {
      const historyState = window.history.state && typeof window.history.state === "object" ? window.history.state : {};
      window.history.replaceState({
        ...historyState,
        [INTERNAL_HASH_STATE_KEY]: target
      }, "", target);
    }
    window.dispatchEvent(new CustomEvent("sglang-deploy-sel", {
      detail: sel
    }));
  }, [sel]);
  const [modal, setModal] = useState(null);
  useEffect(() => {
    if (modal === null) return;
    const onKey = e => {
      if (e.key === "Escape") setModal(null);
    };
    const prev = document.body.style.overflow;
    document.body.style.overflow = "hidden";
    window.addEventListener("keydown", onKey);
    return () => {
      window.removeEventListener("keydown", onKey);
      document.body.style.overflow = prev;
    };
  }, [modal]);
  const [copied, setCopied] = useState(false);
  const [curlCopied, setCurlCopied] = useState(false);
  const [envDraft, setEnvDraft] = useState(env);
  const [benchConc, setBenchConc] = useState(null);
  const [benchAcc, setBenchAcc] = useState(null);
  const [benchCopied, setBenchCopied] = useState(null);
  const configuredRunModes = typeof config.runModes === "function" ? config.runModes(sel) : config.runModes;
  const runModes = configuredRunModes || ["python", "docker"];
  const [runMode, setRunMode] = useState(runModes[0]);
  const [builderScope, setBuilderScope] = useState("base");
  const [builderServerSetting, setBuilderServerSetting] = useState(null);
  const [builderAdvanced, setBuilderAdvanced] = useState(false);
  const [serveExpanded, setServeExpanded] = useState(false);
  const [requestExpanded, setRequestExpanded] = useState(false);
  const [builderHeadAddress, setBuilderHeadAddress] = useState("<head-node-ip>");
  const [builderNodeRank, setBuilderNodeRank] = useState(0);
  const [blockedNote, setBlockedNote] = useState(null);
  const flashBlockedNote = (dim, reason) => {
    const note = {
      dim,
      reason
    };
    setBlockedNote(note);
    setTimeout(() => setBlockedNote(cur => cur === note ? null : cur), 4000);
  };
  useEffect(() => {
    if (builderNodeRank >= Number(sel.nodes || 1)) setBuilderNodeRank(0);
  }, [sel.nodes, builderNodeRank]);
  const hasRunMode = runModes.includes(runMode);
  const fallbackRunMode = runModes[0];
  const activeRunMode = hasRunMode ? runMode : fallbackRunMode;
  useEffect(() => {
    if (!hasRunMode) setRunMode(fallbackRunMode);
  }, [hasRunMode, fallbackRunMode]);
  useEffect(() => {
    if (modal === "env") setEnvDraft(env);
  }, [modal, env]);
  const [mambaRatio, setMambaRatio] = useState(null);
  useEffect(() => {
    const onRatio = e => setMambaRatio(e.detail && (e.detail.baseRatio || e.detail.ratio) || null);
    window.addEventListener("sglang-k3-mamba-ratio", onRatio);
    return () => window.removeEventListener("sglang-k3-mamba-ratio", onRatio);
  }, []);
  const s = makeStyles(isDark);
  const cell = commandBuilder ? commandBuilder.resolveDeployment(sel) : findCell(config.cells, sel);
  const builderMeta = cell && cell.builder || ({});
  const verifyStatus = cellVerifyStatus(cell, sel);
  const cellWithRatio = (() => {
    if (!cell || !mambaRatio) return cell;
    if (cell.flags.some(f => f.startsWith("--mamba-full-memory-ratio") || f.startsWith("--max-mamba-cache-size"))) return cell;
    const flags = [...cell.flags];
    const line = `--mamba-full-memory-ratio ${mambaRatio}`;
    const i = flags.findIndex(f => f.startsWith("--host"));
    if (i >= 0) flags.splice(i, 0, line); else flags.push(line);
    return {
      ...cell,
      flags
    };
  })();
  const commandEnv = commandBuilder ? {
    ...env,
    NODE_RANK: String(builderNodeRank),
    NODE0_IP: builderHeadAddress || "<head-node-ip>"
  } : env;
  const command = renderCommand(cellWithRatio, sel, commandEnv, activeRunMode);
  const effFlags = cell ? overlayCompose(cell.flags, sel) : [];
  const specAlgoFlag = effFlags.find(f => f.split(/[\s=]/)[0] === "--speculative-algorithm");
  const specMrrFlag = effFlags.find(f => f.split(/[\s=]/)[0] === "--max-running-requests");
  const mtpHint = !!specAlgoFlag && !specMrrFlag;
  const specPinnedHint = !!specAlgoFlag && !!specMrrFlag;
  const specMrrValue = specMrrFlag ? specMrrFlag.split(/[\s=]/).filter(Boolean)[1] || "" : "";
  const SPEC_ALGO_LABEL = {
    EAGLE: "MTP",
    EAGLE3: "MTP",
    FROZEN_KV_MTP: "MTP",
    DSPARK: "DSpark",
    DFLASH: "DFlash",
    NGRAM: "N-gram",
    STANDALONE: "standalone draft"
  };
  const specAlgoName = (() => {
    if (!specAlgoFlag) return "MTP";
    const v = specAlgoFlag.split(/[\s=]/).filter(Boolean)[1] || "";
    return SPEC_ALGO_LABEL[v.toUpperCase()] || v || "MTP";
  })();
  const renderWarn = text => {
    const out = [];
    const re = /\[([^\]]+)\]\(#([^)]+)\)/g;
    let last = 0;
    for (let m; m = re.exec(text); last = m.index + m[0].length) {
      if (m.index > last) out.push(text.slice(last, m.index));
      const anchor = m[2];
      out.push(<button key={m.index} type="button" onClick={() => {
        const el = document.getElementById(anchor);
        if (el) el.scrollIntoView({
          behavior: "smooth",
          block: "start"
        });
      }} style={{
        background: "transparent",
        border: "none",
        padding: 0,
        color: isDark ? "#FDBA74" : "#C2410C",
        cursor: "pointer",
        font: "inherit",
        fontWeight: 600,
        textDecoration: "underline",
        textUnderlineOffset: "2px"
      }}>
          {m[1]}
        </button>);
    }
    if (last < text.length) out.push(text.slice(last));
    return out;
  };
  const modelName = resolveModelName(sel);
  const curlTemplate = typeof config.curl === "function" ? config.curl(sel, cell) : config.curl;
  const curlText = interpolate(curlTemplate || "", env, modelName);
  const hwGroups = buildHardwareGroups();
  const benchEntry = benchmarks ? findBenchmark(benchmarks, sel) : null;
  const isOverlayDim = dim => overlayDimSpecs.some(d => d.id === dim);
  const findOption = (dim, value) => {
    const spec = [...matchDimSpecs, ...overlayDimSpecs].find(d => d.id === dim);
    return spec && (spec.options || []).find(o => o.id === value);
  };
  const isEnabled = (dim, value) => {
    const opt = findOption(dim, value);
    if (opt && optionDisabled(opt, sel)) return false;
    if (commandBuilder && dim === "hw") return true;
    return isOverlayDim(dim) || isOptionAvailable(config.cells || [], sel, dim, value);
  };
  const reseatHiddenPicks = next => {
    let out = next;
    for (const spec of [...matchDimSpecs, ...overlayDimSpecs]) {
      const opts = visibleOptions(spec, out).filter(o => !optionDisabled(o, out));
      if (!opts.length) continue;
      if (!opts.some(o => o.id === out[spec.id])) {
        out = {
          ...out,
          [spec.id]: opts[0].id
        };
      }
    }
    return out;
  };
  const recommendedBuilderRecipe = hw => {
    const recipes = commandBuilder.resource?.verifiedRecipes || [];
    return recipes.find(entry => entry.hw === hw && entry.default) || recipes.find(entry => entry.hw === hw);
  };
  const handleSelect = (dim, value) => {
    if (commandBuilder) {
      setSel(prev => {
        let next = {
          ...prev,
          [dim]: value
        };
        if (dim === "hw") {
          const currentRecipe = recommendedBuilderRecipe(prev.hw);
          const nextRecipe = recommendedBuilderRecipe(value);
          const resourcesFollowPlatformDefault = !!currentRecipe && Number(prev.nodes) === Number(currentRecipe.nodes) && Number(prev.gpus_per_node) === Number(currentRecipe.gpus_per_node);
          next = {
            ...next,
            nodes: resourcesFollowPlatformDefault ? nextRecipe?.nodes ?? next.nodes : next.nodes,
            gpus_per_node: resourcesFollowPlatformDefault ? nextRecipe?.gpus_per_node ?? next.gpus_per_node : next.gpus_per_node,
            topology_mode: "auto",
            tp_size: resourcesFollowPlatformDefault ? nextRecipe?.tp_size ?? 1 : next.tp_size,
            ulysses_degree: resourcesFollowPlatformDefault ? nextRecipe?.ulysses_degree ?? 1 : next.ulysses_degree,
            ring_degree: resourcesFollowPlatformDefault ? nextRecipe?.ring_degree ?? 1 : next.ring_degree,
            placement: resourcesFollowPlatformDefault ? nextRecipe?.placement || "auto" : next.placement,
            encoder: resourcesFollowPlatformDefault ? nextRecipe?.encoder || "auto" : next.encoder
          };
        }
        return reseatHiddenPicks(normalizeBuilderSelection(next));
      });
      return;
    }
    setSel(prev => reseatHiddenPicks(isOverlayDim(dim) ? {
      ...prev,
      [dim]: value
    } : snapToValidCell(config.cells, prev, dim, value)));
  };
  const commitBuilderNumber = (event, currentValue, bounds, commit) => {
    const parsed = Number(event.currentTarget.value);
    if (!Number.isInteger(parsed)) {
      event.currentTarget.value = String(currentValue);
      return;
    }
    const value = Math.min(bounds.max, Math.max(bounds.min, parsed));
    event.currentTarget.value = String(value);
    commit(value);
  };
  const renderBuilderNumberInput = ({identity, value, min, max, label, onCommit}) => <input key={identity} type="number" inputMode="numeric" min={min} max={max} step="1" defaultValue={value} aria-label={label} onFocus={event => event.currentTarget.select()} onBlur={event => commitBuilderNumber(event, value, {
    min,
    max
  }, onCommit)} onKeyDown={event => {
    if (event.key === "Enter") event.currentTarget.blur();
  }} />;
  const updateBuilderResource = (key, delta) => {
    if (!commandBuilder) return;
    const bounds = commandBuilder.resource?.limits?.[key] || ({
      min: 1,
      max: 8
    });
    setSel(prev => {
      const value = Math.min(bounds.max, Math.max(bounds.min, Number(prev[key]) + delta));
      return normalizeBuilderSelection({
        ...prev,
        [key]: value,
        topology_mode: "auto"
      });
    });
  };
  const setBuilderResource = (key, rawValue) => {
    if (!commandBuilder) return;
    const value = Number.parseInt(rawValue, 10);
    if (!Number.isFinite(value)) return;
    const bounds = commandBuilder.resource?.limits?.[key] || ({
      min: 1,
      max: 8
    });
    setSel(prev => normalizeBuilderSelection({
      ...prev,
      [key]: Math.min(bounds.max, Math.max(bounds.min, value)),
      topology_mode: "auto"
    }));
  };
  const editBuilderTopology = (key, value) => {
    if (!commandBuilder) return;
    setSel(prev => normalizeBuilderSelection({
      ...prev,
      topology_mode: "manual",
      [key]: Number.parseInt(value, 10) || 1
    }));
  };
  const handleCopy = () => {
    navigator.clipboard.writeText(command);
    setCopied(true);
    setTimeout(() => setCopied(false), 1200);
  };
  const copyCurl = () => {
    navigator.clipboard.writeText(curlText);
    setCurlCopied(true);
    setTimeout(() => setCurlCopied(false), 1200);
  };
  const copyBench = (key, text) => {
    navigator.clipboard.writeText(text);
    setBenchCopied(key);
    setTimeout(() => setBenchCopied(null), 1200);
  };
  const placeholderGroups = (() => {
    const out = {
      command: [],
      curl: []
    };
    for (const [key, meta] of Object.entries(config.placeholders || ({}))) {
      (out[meta.target] || (out[meta.target] = [])).push({
        key,
        ...meta
      });
    }
    return out;
  })();
  const renderButton = (item, dim, selectedId) => {
    const checked = selectedId === item.id;
    const disabled = !isEnabled(dim, item.id);
    return <label key={item.id} className="sg-command-visualizer-choice" role="radio" aria-checked={checked} aria-disabled={disabled} tabIndex={disabled ? -1 : 0} style={{
      ...s.labelBase,
      ...checked ? s.checked : {},
      ...disabled ? s.disabled : {}
    }} title={disabled ? (typeof item.disableReason === "function" ? item.disableReason(sel) : item.disableReason) || "Not supported for current selection" : ""} onClick={e => {
      if (disabled) {
        e.preventDefault();
        return;
      }
      handleSelect(dim, item.id);
    }} onKeyDown={e => {
      if (disabled || e.key !== "Enter" && e.key !== " ") return;
      e.preventDefault();
      handleSelect(dim, item.id);
    }}>
        <input type="radio" checked={checked} disabled={disabled} readOnly style={{
      display: "none"
    }} />
        <span>{item.label}</span>
        {item.subtitle && <small style={{
      ...s.subtitle,
      color: checked ? "rgba(255,255,255,0.85)" : "inherit"
    }}>
            {item.subtitle}
          </small>}
      </label>;
  };
  const renderFlatSection = (title, options, dim, selectedId) => <div style={s.card}>
      <div style={s.title}>{title}</div>
      <div style={s.itemsGrid(options.length)}>
        {options.map(item => renderButton(item, dim, selectedId))}
      </div>
    </div>;
  const maxHwCols = Math.max(...hwGroups.map(x => x.items.length));
  if (commandBuilder) {
    const scopeLabel = {
      base: "Setup",
      serve: "Server",
      request: "Request"
    };
    const scopedDims = scope => overlayDimSpecs.filter(dim => {
      if ((dim.scope || "base") !== scope) return false;
      if (dim.kind === "number") {
        return typeof dim.showWhen !== "function" || dim.showWhen(sel);
      }
      return rowVisible(dim, sel);
    });
    const baseDims = scopedDims("base");
    const serveDims = scopedDims("serve");
    const requestDims = scopedDims("request");
    const errors = builderMeta.errors || [];
    const warnings = builderMeta.warnings || [];
    const invalid = errors.length > 0;
    const totalGpus = Number(sel.nodes) * Number(sel.gpus_per_node);
    const topology = builderMeta.topology || ({});
    const verification = builderMeta.verification || ({});
    const scopeIsVerified = scope => scopedDims(scope).every(dim => {
      const option = (dim.options || []).find(entry => entry.id === sel[dim.id]);
      if (option && optionSoft(option, sel)) return false;
      const predicate = option?.verifiedWhen ?? dim.verifiedWhen;
      return typeof predicate === "function" ? !!predicate(sel) : predicate !== false;
    });
    const serveStatus = invalid ? "error" : scopeIsVerified("serve") ? verification.serve || verifyStatus : "unverified";
    const requestStatus = invalid ? "error" : scopeIsVerified("request") ? verification.request || verifyStatus : "unverified";
    const statusText = status => ({
      verified: "Verified",
      unverified: "Unverified",
      "in-progress": "Verification in progress",
      error: "Invalid configuration"
    })[status] || "Unverified";
    const activeServerSetting = serveDims.find(dim => dim.id === builderServerSetting) || serveDims[0];
    const selectedOption = dim => (dim.options || []).find(option => option.id === sel[dim.id]);
    const effectiveSetting = dim => builderMeta.resolvedSettings?.[dim.id] || selectedOption(dim)?.label || sel[dim.id] || "—";
    const recommendedRecipe = recommendedBuilderRecipe(sel.hw);
    const recommendedInUse = !!recommendedRecipe && Number(sel.nodes) === recommendedRecipe.nodes && Number(sel.gpus_per_node) === recommendedRecipe.gpus_per_node && sel.topology_mode === "auto" && ["auto", recommendedRecipe.placement].includes(sel.placement) && sel.attention === "platform" && sel.precision === "native" && ["auto", recommendedRecipe.encoder].includes(sel.encoder) && sel.execution === "eager";
    const restoreRecommendedRecipe = () => {
      if (!recommendedRecipe) return;
      setSel(prev => reseatHiddenPicks(normalizeBuilderSelection({
        ...prev,
        nodes: recommendedRecipe.nodes,
        gpus_per_node: recommendedRecipe.gpus_per_node,
        topology_mode: "auto",
        tp_size: recommendedRecipe.tp_size,
        ulysses_degree: recommendedRecipe.ulysses_degree,
        ring_degree: recommendedRecipe.ring_degree,
        placement: recommendedRecipe.placement || "auto",
        attention: "platform",
        precision: "native",
        encoder: recommendedRecipe.encoder || "auto",
        execution: "eager"
      })));
    };
    const renderBuilderChoice = (item, dim) => {
      const checked = sel[dim.id] === item.id;
      const disabled = !isEnabled(dim.id, item.id);
      const soft = !disabled && optionSoft(item, sel);
      const reason = disabled ? item.disableReason || "Not available for this configuration" : soft ? item.softReason || "Runs, but this combination is not a verified recipe yet." : "";
      return <button key={item.id} type="button" className="sgd-builder-choice" data-selected={checked ? "true" : "false"} data-blocked={disabled ? "true" : undefined} data-soft={soft ? "true" : undefined} aria-disabled={disabled} aria-pressed={checked} title={reason} onClick={() => {
        if (disabled) {
          flashBlockedNote(dim.id, reason);
          return;
        }
        handleSelect(dim.id, item.id);
      }}>
          <span className="sgd-builder-choice-dot" aria-hidden="true" />
          <span>{item.label}</span>
          {item.subtitle && <small>{item.subtitle}</small>}
        </button>;
    };
    const renderBuilderDimension = dim => <section className="sgd-builder-section" key={dim.id}>
        <div className="sgd-builder-section-heading">
          <span>{dim.title}</span>
          {dim.description && <small>{dim.description}</small>}
        </div>
        <div className="sgd-builder-choice-grid" data-density={(dim.options || []).length > 5 ? "compact" : "normal"}>
          {visibleOptions(dim, sel).map(option => renderBuilderChoice(option, dim))}
        </div>
        {blockedNote && blockedNote.dim === dim.id && <p className="sgd-builder-blocked-note" role="status">{blockedNote.reason}</p>}
      </section>;
    const renderStepper = (key, label, detail) => {
      const bounds = commandBuilder.resource?.limits?.[key] || ({
        min: 1,
        max: 8
      });
      return <div className="sgd-builder-stepper-field">
          <div>
            <span>{label}</span>
            {detail && <small>{detail}</small>}
          </div>
          <div className="sgd-builder-stepper" aria-label={label}>
            <button type="button" aria-label={`Decrease ${label}`} disabled={Number(sel[key]) <= bounds.min} onClick={() => updateBuilderResource(key, -1)}>−</button>
            {renderBuilderNumberInput({
        identity: `${key}-${sel[key]}`,
        value: sel[key],
        min: bounds.min,
        max: bounds.max,
        label,
        onCommit: value => setBuilderResource(key, value)
      })}
            <button type="button" aria-label={`Increase ${label}`} disabled={Number(sel[key]) >= bounds.max} onClick={() => updateBuilderResource(key, 1)}>+</button>
          </div>
        </div>;
    };
    const renderBaseScope = () => <div className="sgd-builder-scope-panel" data-scope="base">
        {recommendedRecipe && <section className="sgd-builder-recipe">
            <div>
              {}
              <span>{recommendedRecipe.unverified ? "Derived recipe" : "Verified recipe"} · {sel.hw.toUpperCase()}</span>
              <strong>
                {[`${recommendedRecipe.nodes * recommendedRecipe.gpus_per_node} GPUs`, recommendedRecipe.tp_size > 1 && `TP ${recommendedRecipe.tp_size}`, `Ulysses ${recommendedRecipe.ulysses_degree}`, recommendedRecipe.ring_degree > 1 && `Ring ${recommendedRecipe.ring_degree}`, ({
      resident: "Resident",
      fsdp: "FSDP",
      offload: "Layerwise offload"
    })[recommendedRecipe.placement]].filter(Boolean).join(" · ")}
              </strong>
            </div>
            <div>
              {renderStatus(recommendedRecipe.unverified ? "unverified" : "verified")}
              {recommendedInUse ? <small>In use</small> : <button type="button" className="sgd-builder-text-action" onClick={restoreRecommendedRecipe}>{recommendedRecipe.unverified ? "Use derived recipe" : "Use verified recipe"}</button>}
            </div>
          </section>}
        <section className="sgd-builder-section">
          <div className="sgd-builder-section-heading"><span>Hardware</span></div>
          <div className="sgd-builder-hardware-grid">
            {hwGroups.flatMap(group => group.items).map(item => {
      const selected = sel.hw === item.id;
      return <button key={item.id} type="button" className="sgd-builder-hardware" data-selected={selected ? "true" : "false"} aria-pressed={selected} onClick={() => handleSelect("hw", item.id)}>
                  <span className="sgd-builder-choice-dot" aria-hidden="true" />
                  <strong>{item.label}</strong>
                  <small>{item.subtitle}</small>
                </button>;
    })}
          </div>
        </section>

        {}
        <section className="sgd-builder-section">
          <div className="sgd-builder-section-heading">
            <span>Resources</span>
            <small>{builderMeta.topologySummary || "No valid topology"}</small>
          </div>
          <div className="sgd-builder-resource-grid">
            {renderStepper("nodes", "Nodes")}
            {renderStepper("gpus_per_node", "GPUs / node")}
          </div>
          {Number(sel.nodes) > 1 && <p className="sgd-builder-resource-summary">
              {sel.nodes} nodes × {sel.gpus_per_node} {sel.hw.toUpperCase()} = {totalGpus} GPUs
            </p>}
          <button type="button" className="sgd-builder-text-action sgd-builder-topology-toggle" aria-expanded={builderAdvanced} onClick={() => setBuilderAdvanced(open => !open)}>
            Advanced topology <span aria-hidden="true">{builderAdvanced ? "↗" : "↘"}</span>
          </button>
          {builderAdvanced && <div className="sgd-builder-advanced">
              <p>Auto uses an exact verified recipe when one exists; manual values are allowed when the model constraints remain valid.</p>
              <div className="sgd-builder-topology-inputs">
                {[["tp_size", "Tensor parallel", [1, 2, 4, 8]], ["ulysses_degree", "Ulysses", [1, 2, 4, 8, 16]], ["ring_degree", "Ring", [1, 2, 4, 8]]].map(([key, label, values]) => <label key={key}>
                    <span>{label}</span>
                    <select value={sel.topology_mode === "manual" ? sel[key] : topology[key] || 1} onChange={event => editBuilderTopology(key, event.target.value)}>
                      {values.map(value => <option value={value} key={value}>{value}</option>)}
                    </select>
                  </label>)}
              </div>
              <button type="button" className="sgd-builder-text-action" disabled={sel.topology_mode === "auto"} onClick={() => setSel(prev => normalizeBuilderSelection({
      ...prev,
      topology_mode: "auto"
    }))}>Use automatic topology</button>
            </div>}
          {(errors.length > 0 || warnings.length > 0) && <div className="sgd-builder-messages" data-state={errors.length ? "error" : "warning"}>
              {(errors.length ? errors : warnings).map((message, index) => <p key={index}>{message}</p>)}
            </div>}
        </section>

        {baseDims.map(renderBuilderDimension)}
      </div>;
    const renderSettingEditor = (dim, className = "", direct = false) => {
      if (!dim) return null;
      const options = visibleOptions(dim, sel);
      const currentOption = selectedOption(dim);
      return <section className={`sgd-builder-context ${className}`} aria-live={direct ? undefined : "polite"}>
          <div className="sgd-builder-context-heading">
            <div>
              <span>{direct ? dim.title : `${dim.title} options`}</span>
              {dim.description && <p>{dim.description}</p>}
            </div>
            {dim.quality && <small>{dim.quality}</small>}
          </div>
          {dim.kind === "number" ? <div className="sgd-builder-request-stepper">
              <button type="button" aria-label={`Decrease ${dim.title}`} disabled={Number(sel[dim.id]) <= dim.min} onClick={() => setSel(prev => ({
        ...prev,
        [dim.id]: Math.max(dim.min, Number(prev[dim.id]) - 1)
      }))}>−</button>
              {renderBuilderNumberInput({
        identity: `${dim.id}-${sel[dim.id]}`,
        value: sel[dim.id],
        min: dim.min,
        max: dim.max,
        label: dim.title,
        onCommit: value => setSel(prev => ({
          ...prev,
          [dim.id]: value
        }))
      })}
              <button type="button" aria-label={`Increase ${dim.title}`} disabled={Number(sel[dim.id]) >= dim.max} onClick={() => setSel(prev => ({
        ...prev,
        [dim.id]: Math.min(dim.max, Number(prev[dim.id]) + 1)
      }))}>+</button>
              <span>{dim.unit || "outputs"}</span>
            </div> : <div className="sgd-builder-context-options">
              {options.map(option => renderBuilderChoice(option, dim))}
            </div>}
          {blockedNote && blockedNote.dim === dim.id && <p className="sgd-builder-blocked-note" role="status">{blockedNote.reason}</p>}
          {(currentOption?.description || dim.learnMore) && <div className="sgd-builder-context-note">
              {currentOption?.description && <p>{currentOption.description}</p>}
              {}
              {dim.learnMore && <a href={dim.learnMore}>
                  <svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" aria-hidden="true"><line x1="4" y1="6" x2="20" y2="6" /><line x1="4" y1="12" x2="16" y2="12" /><line x1="4" y1="18" x2="11" y2="18" /></svg>
                  Learn more
                </a>}
              {dim.docsHref && <a href={dim.docsHref}>
                  <svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round" aria-hidden="true"><path d="M4 19.5A2.5 2.5 0 0 1 6.5 17H20" /><path d="M6.5 2H20v20H6.5A2.5 2.5 0 0 1 4 19.5v-15A2.5 2.5 0 0 1 6.5 2z" /></svg>
                  SGLang docs
                </a>}
            </div>}
        </section>;
    };
    const renderServerScope = () => <div className="sgd-builder-scope-panel" data-scope="serve">
        <div className="sgd-builder-setting-layout">
          <div className="sgd-builder-setting-list">
            {serveDims.map(dim => {
      const isActive = dim.id === activeServerSetting?.id;
      const option = selectedOption(dim);
      const recommended = typeof option?.recommendedWhen === "function" ? option.recommendedWhen(sel) : !!option?.recommended;
      return <div className="sgd-builder-setting-item" key={dim.id}>
                  <button type="button" className="sgd-builder-setting-row" data-active={isActive ? "true" : "false"} aria-expanded={isActive} onClick={() => setBuilderServerSetting(dim.id)}>
                    <span>{dim.title}</span>
                    <strong>{effectiveSetting(dim)}</strong>
                    {recommended && <small>Recommended</small>}
                    <span aria-hidden="true">{isActive ? "⌄" : "›"}</span>
                  </button>
                  {isActive && renderSettingEditor(dim, "sgd-builder-context--inline")}
                </div>;
    })}
          </div>
          {renderSettingEditor(activeServerSetting, "sgd-builder-context--rail")}
        </div>
      </div>;
    const renderRequestScope = () => <div className="sgd-builder-scope-panel sgd-builder-request-direct" data-scope="request">
        {requestDims.map(dim => <div className="sgd-builder-request-setting" key={dim.id}>
            {renderSettingEditor(dim, "", true)}
          </div>)}
      </div>;
    const renderScopeControls = () => {
      if (builderScope === "base") return renderBaseScope();
      if (builderScope === "serve") return renderServerScope();
      return renderRequestScope();
    };
    const renderStatus = status => <span className="sgd-builder-status" data-status={status}>
        <span aria-hidden="true" />{statusText(status)}
      </span>;
    const renderOutputCard = type => {
      const serve = type === "serve";
      const text = serve ? command : curlText;
      const canExpand = text.split("\n").length > 9;
      const expanded = serve ? serveExpanded : requestExpanded;
      const setExpanded = serve ? setServeExpanded : setRequestExpanded;
      const status = serve ? serveStatus : requestStatus;
      const emphasized = builderScope === "base" || builderScope === type;
      return <section className="sgd-builder-output" data-output={type} data-emphasized={emphasized ? "true" : "false"}>
          <header>
            <div className="sgd-builder-output-index">{serve ? "1" : "2"}</div>
            <div className="sgd-builder-output-title">
              <strong>{serve ? "Serve" : "Request"}</strong>
              <span>
                {serve ? `${sel.hw.toUpperCase()} · ${activeRunMode === "docker" ? "Docker" : "Python"}` : "cURL"}
              </span>
            </div>
            {renderStatus(status)}
          </header>
          {serve && runModes.length > 1 && <div className="sgd-builder-output-tabs" role="tablist" aria-label="Serve command format">
              {runModes.map(mode => <button type="button" role="tab" aria-selected={activeRunMode === mode} data-selected={activeRunMode === mode ? "true" : "false"} key={mode} onClick={() => setRunMode(mode)}>{mode === "docker" ? "Docker" : "Python"}</button>)}
            </div>}
          {serve && Number(sel.nodes) > 1 && <div className="sgd-builder-node-fields">
              <label>
                <span>Head address</span>
                <input value={builderHeadAddress} onChange={event => setBuilderHeadAddress(event.target.value)} />
              </label>
              <label>
                <span>Node rank</span>
                {renderBuilderNumberInput({
        identity: `node-rank-${builderNodeRank}-${sel.nodes}`,
        value: builderNodeRank,
        min: 0,
        max: Number(sel.nodes) - 1,
        label: "Node rank",
        onCommit: setBuilderNodeRank
      })}
              </label>
            </div>}
          <div className="sgd-builder-code">
            <pre className={expanded ? "is-expanded" : ""}><code>{text}</code></pre>
            <button type="button" className="sgd-builder-copy" disabled={invalid} aria-label={(serve ? copied : curlCopied) ? "Copied" : "Copy command"} data-copied={(serve ? copied : curlCopied) ? "true" : undefined} onClick={serve ? handleCopy : copyCurl}>
              <svg className="sgd-builder-copy-glyph" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.9" strokeLinecap="round" strokeLinejoin="round" aria-hidden="true"><rect x="9" y="9" width="12" height="12" rx="2.5" /><path d="M15 5v-.25A2.75 2.75 0 0 0 12.25 2h-7.5A2.75 2.75 0 0 0 2 4.75v7.5A2.75 2.75 0 0 0 4.75 15H5" /></svg>
              <svg className="sgd-builder-copy-check" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2.2" strokeLinecap="round" strokeLinejoin="round" aria-hidden="true"><path d="M20 6 9 17l-5-5" /></svg>
            </button>
          </div>
          {invalid && <div className="sgd-builder-output-error">{errors[0]}</div>}
          <footer>
            {canExpand && <button type="button" className="sgd-builder-text-action" onClick={() => setExpanded(!expanded)}>
                {expanded ? "Collapse" : "Expand"}
              </button>}
            <div>
              <button type="button" className="sgd-builder-text-action" onClick={() => setModal("env")}>Variables</button>
            </div>
          </footer>
        </section>;
    };
    return <section id={DEPLOYMENT_COMPONENT_ID} className="not-prose sg-command-visualizer sgd-command-builder" style={{
      scrollMarginTop: "104px"
    }} aria-label={`${config.modelName} command builder`}>
        <nav className="sgd-builder-scope-tabs" role="tablist" aria-label="Command builder scope">
          {["base", "serve", "request"].map(scope => <button type="button" role="tab" key={scope} aria-label={scopeLabel[scope]} aria-selected={builderScope === scope} aria-controls={`${DEPLOYMENT_COMPONENT_ID}-controls`} data-active={builderScope === scope ? "true" : "false"} onClick={() => setBuilderScope(scope)}>
              {scopeLabel[scope]}
            </button>)}
        </nav>

        <div className="sgd-builder-main" data-scope={builderScope}>
          <div id={`${DEPLOYMENT_COMPONENT_ID}-controls`} className="sgd-builder-controls" role="tabpanel" aria-label={`${scopeLabel[builderScope]} settings`}>
            {renderScopeControls()}
          </div>
          <div className="sgd-builder-output-rail">
            {builderScope !== "request" && renderOutputCard("serve")}
            {builderScope !== "serve" && renderOutputCard("request")}
          </div>
        </div>

        {modal === "env" && <div style={s.modalBackdrop} onClick={() => setModal(null)}>
            <div style={s.modalBox} onClick={event => event.stopPropagation()}>
              <div style={s.modalHeader}>
                <div style={s.modalTitle}>Command variables</div>
                <button style={s.modalCloseBtn} onClick={() => setModal(null)} aria-label="Close">×</button>
              </div>
              {["command", "curl"].map(target => placeholderGroups[target].length > 0 && <div key={target}>
                  <div style={s.sectionHeading}>{target === "command" ? "Serve" : "Request"}</div>
                  {placeholderGroups[target].map(({key, label}) => <div key={key} style={s.formField}>
                      <label style={s.formLabel}>{label}</label>
                      <input style={s.formInput} value={envDraft[key] ?? ""} onChange={event => setEnvDraft({
      ...envDraft,
      [key]: event.target.value
    })} />
                    </div>)}
                </div>)}
              <div style={{
      display: "flex",
      justifyContent: "flex-end",
      gap: 8,
      marginTop: 16
    }}>
                <button style={{
      ...s.iconButton,
      padding: "6px 14px"
    }} onClick={() => setModal(null)}>Cancel</button>
                <button style={s.primaryBtn} onClick={() => {
      saveEnv(envDraft);
      setModal(null);
    }}>Save</button>
              </div>
            </div>
          </div>}
      </section>;
  }
  return <div id={DEPLOYMENT_COMPONENT_ID} style={{
    ...s.container,
    scrollMarginTop: "104px"
  }} className="not-prose sg-command-visualizer">
      {}
      <div style={s.cardColumn}>
        <div style={{
    ...s.title,
    marginBottom: "2px"
  }}>Hardware Platform</div>
        {hwGroups.map(g => <div key={g.label || "hardware"} style={s.vendorRow}>
            {g.label && <div style={s.vendorLabel}>{g.label}</div>}
            <div style={s.itemsGrid(maxHwCols)}>
              {g.items.map(item => renderButton(item, "hw", sel.hw))}
              {Array.from({
    length: maxHwCols - g.items.length
  }).map((_, i) => <div key={`pad-${i}`} />)}
            </div>
          </div>)}
      </div>

      {matchDimSpecs.filter(d => rowVisible(d, sel)).map(d => <div key={d.id}>
            {renderFlatSection(d.title, visibleOptions(d, sel), d.id, sel[d.id])}
          </div>)}
      {overlayDimSpecs.filter(d => rowVisible(d, sel)).map(d => <div key={d.id}>
            {renderFlatSection(d.title, visibleOptions(d, sel), d.id, sel[d.id])}
          </div>)}

      {}
      <div style={s.card}>
        <div style={s.title}>Command:</div>
        <div style={s.commandWrap}>
          {cell && cell.redirect ? cell.warn && <div style={s.mtpWarn}>⚠️ {renderWarn(cell.warn)}</div> : <>
            <div style={s.commandHeader}>
              <div style={s.headerLeft}>
                <div style={s.badge(verifyStatus)}>
                  <span style={s.badgeDot(verifyStatus)} />
                  {VERIFY_LABEL[verifyStatus]}
                </div>
                <div style={s.runModeWrap} role="tablist" aria-label="Output format">
                  {runModes.map((mode, index) => <span key={mode} className="sg-command-visualizer-tab" style={{
    ...index === runModes.length - 1 ? s.runModeChipLast(activeRunMode === mode) : s.runModeChip(activeRunMode === mode),
    ...runModes.length === 1 ? {
      borderRadius: 7
    } : {}
  }} onClick={() => setRunMode(mode)} onKeyDown={e => {
    if (e.key !== "Enter" && e.key !== " ") return;
    e.preventDefault();
    setRunMode(mode);
  }} role="tab" tabIndex={0} aria-selected={activeRunMode === mode}>
                      {mode === "docker" ? "Docker" : "Python"}
                    </span>)}
                </div>
              </div>
              <div style={s.iconRow}>
                <button style={s.iconButton} onClick={handleCopy}>
                  {copied ? "✓ Copied" : "⧉ Copy"}
                </button>
                <button style={s.iconButton} onClick={() => setModal("curl")}>$ cURL</button>
                <button style={s.iconButton} onClick={() => setModal("env")}>⚙ Env</button>
              </div>
            </div>
            <pre style={s.commandPre}>{command}</pre>
            {cell && cell.warn && <div style={s.mtpWarn}>⚠️ {renderWarn(cell.warn)}</div>}
            {mtpHint && <div style={s.mtpWarn}>
                ⚠️ Speculative decoding ({specAlgoName}) is on — SGLang resets <code>--max-running-requests</code> to <strong>48</strong> when it isn't set. Add <code>--max-running-requests &lt;N&gt;</code> sized for your target concurrency.
              </div>}
            {specPinnedHint && <div style={s.mtpWarn}>
                ℹ️ Speculative decoding ({specAlgoName}) is on and this recipe pins <code>--max-running-requests</code> to <strong>{specMrrValue}</strong>. Adjust it to match your target concurrency — if you remove the flag, SGLang falls back to <strong>48</strong>.
              </div>}
          </>}
        </div>
      </div>

      {}
      {benchmarks && cell && renderBenchmarkCard(benchEntry)}

      {}
      {config.showPlaygroundLink !== false && <div style={{
    padding: "6px 12px",
    fontSize: "12px",
    color: isDark ? "#9ca3af" : "#6b7280",
    display: "flex",
    alignItems: "center",
    gap: "6px"
  }}>
          <span>Need to go beyond the verified matrix?</span>
          <button type="button" onClick={() => {
    const el = document.getElementById("playground");
    if (el) el.scrollIntoView({
      behavior: "smooth",
      block: "start"
    });
  }} style={{
    background: "transparent",
    border: "none",
    padding: 0,
    color: isDark ? "#FDBA74" : "#C2410C",
    cursor: "pointer",
    fontSize: "12px",
    fontWeight: 600,
    textDecoration: "underline",
    textUnderlineOffset: "2px"
  }}>
            Open the Playground →
          </button>
        </div>}

      {}
      {modal === "curl" && <div style={s.modalBackdrop} onClick={() => setModal(null)}>
          <div style={s.modalBox} onClick={e => e.stopPropagation()}>
            <div style={s.modalHeader}>
              <div style={s.modalTitle}>cURL example</div>
              <button style={s.modalCloseBtn} onClick={() => setModal(null)} aria-label="Close">×</button>
            </div>
            <div style={s.commandWrap}>
              <div style={s.commandHeader}>
                <div style={{
    fontSize: 11,
    opacity: 0.7
  }}>
                  Model: <code>{modelName || "(unresolved)"}</code>
                </div>
                <button style={s.iconButton} onClick={copyCurl}>
                  {curlCopied ? "✓ Copied" : "⧉ Copy"}
                </button>
              </div>
              <pre style={s.commandPre}>{curlText}</pre>
            </div>
            <p style={{
    fontSize: 11,
    opacity: 0.7,
    marginTop: 8
  }}>
              Edit <code>CURL_HOST</code> / <code>CURL_PORT</code> in the Env panel.
            </p>
          </div>
        </div>}

      {}
      {modal === "env" && <div style={s.modalBackdrop} onClick={() => setModal(null)}>
          <div style={s.modalBox} onClick={e => e.stopPropagation()}>
            <div style={s.modalHeader}>
              <div style={s.modalTitle}>Env / placeholder values</div>
              <button style={s.modalCloseBtn} onClick={() => setModal(null)} aria-label="Close">×</button>
            </div>
            {placeholderGroups.curl.length > 0 && <div>
                <div style={s.sectionHeading}>cURL placeholders</div>
                {placeholderGroups.curl.map(({key, label}) => <div key={key} style={s.formField}>
                    <label style={s.formLabel}>
                      {label} <code style={{
    opacity: 0.6
  }}>{`{{${key}}}`}</code>
                    </label>
                    <input style={s.formInput} value={envDraft[key] ?? ""} onChange={e => setEnvDraft({
    ...envDraft,
    [key]: e.target.value
  })} />
                  </div>)}
              </div>}
            {placeholderGroups.command.length > 0 && <div>
                <div style={s.sectionHeading}>Command placeholders</div>
                {placeholderGroups.command.map(({key, label}) => <div key={key} style={s.formField}>
                    <label style={s.formLabel}>
                      {label} <code style={{
    opacity: 0.6
  }}>{`{{${key}}}`}</code>
                    </label>
                    <input style={s.formInput} value={envDraft[key] ?? ""} onChange={e => setEnvDraft({
    ...envDraft,
    [key]: e.target.value
  })} />
                  </div>)}
              </div>}
            <div style={{
    display: "flex",
    justifyContent: "flex-end",
    gap: 8,
    marginTop: 16
  }}>
              <button style={{
    ...s.iconButton,
    padding: "6px 14px"
  }} onClick={() => setModal(null)}>Cancel</button>
              <button style={s.primaryBtn} onClick={() => {
    saveEnv(envDraft);
    setModal(null);
  }}>Save</button>
            </div>
            <p style={{
    fontSize: 11,
    opacity: 0.7,
    marginTop: 10
  }}>
              Values persist in localStorage and are reused the next time you visit any cookbook.
            </p>
          </div>
        </div>}

      {}
      {modal === "bench" && benchEntry && (() => {
    const bc = buildBenchCommands(benchEntry, sel);
    if (!bc) return null;
    const selSummary = [sel.hw && sel.hw.toUpperCase(), sel.variant, sel.quant && sel.quant.toUpperCase(), sel.strategy, sel.kvDsaPair, sel.nodes].filter(part => part !== undefined && part !== null && part !== "").join(" · ");
    let selConc = null;
    let speedCmd = null;
    if (bc.speed) {
      selConc = bc.speed.concurrencies.includes(benchConc) ? benchConc : bc.speed.concurrencies[0];
      const w = bc.speed.workload;
      speedCmd = interpolate(bc.speed.template, {
        ...env,
        DATASET: w.dataset,
        ISL: w.isl,
        OSL: w.osl,
        MAX_CONCURRENCY: selConc,
        NUM_PROMPTS: bc.speed.numPromptsOf(selConc)
      }, modelName);
    }
    let selAcc = null;
    let accCmd = null;
    if (bc.accuracy.length > 0) {
      selAcc = bc.accuracy.find(a => a.key === benchAcc) || bc.accuracy[0];
      accCmd = interpolate(selAcc.template, env, modelName);
    }
    return <div style={s.modalBackdrop} onClick={() => setModal(null)}>
            <div style={s.modalBox} onClick={e => e.stopPropagation()}>
              <div style={s.modalHeader}>
                <div style={s.modalTitle}>Benchmark commands</div>
                <button style={s.modalCloseBtn} onClick={() => setModal(null)} aria-label="Close">×</button>
              </div>
              <p style={{
      fontSize: 11,
      opacity: 0.7,
      margin: "0 0 12px"
    }}>
                For <code>{selSummary}</code>. Start the server with the Deploy command above, then run these against it.
              </p>

              {selAcc && <div>
                  <div style={s.sectionHeading}>Accuracy</div>
                  {bc.accuracy.length > 1 && <div style={s.benchChipRow}>
                      <span style={{
      fontSize: 11,
      opacity: 0.7
    }}>benchmark:</span>
                      {bc.accuracy.map(a => <button key={a.key} style={{
      ...s.benchChip,
      ...a.key === selAcc.key ? s.benchChipActive : {}
    }} onClick={() => setBenchAcc(a.key)}>
                          {a.label}
                        </button>)}
                    </div>}
                  <div style={{
      ...s.commandWrap,
      marginBottom: 6
    }}>
                    <div style={s.commandHeader}>
                      <div style={{
      fontSize: 11,
      opacity: 0.7
    }}>{selAcc.label}</div>
                      <button style={s.iconButton} onClick={() => copyBench("acc", accCmd)}>
                        {benchCopied === "acc" ? "✓ Copied" : "⧉ Copy"}
                      </button>
                    </div>
                    <pre style={s.commandPre}>{accCmd}</pre>
                  </div>
                  {bc.accuracy.length > 1 && <p style={{
      fontSize: 11,
      opacity: 0.7,
      margin: "0 0 4px"
    }}>
                      Switch the benchmark chip to see each eval's command.
                    </p>}
                </div>}

              {bc.speed && <div>
                  <div style={s.sectionHeading}>Speed</div>
                  {bc.speed.concurrencies.length > 1 && <div style={s.benchChipRow}>
                      <span style={{
      fontSize: 11,
      opacity: 0.7
    }}>max-concurrency:</span>
                      {bc.speed.concurrencies.map(c => <button key={c} style={{
      ...s.benchChip,
      ...c === selConc ? s.benchChipActive : {}
    }} onClick={() => setBenchConc(c)}>
                          {c}
                        </button>)}
                    </div>}
                  <div style={{
      ...s.commandWrap,
      marginBottom: 6
    }}>
                    <div style={s.commandHeader}>
                      <div style={{
      fontSize: 11,
      opacity: 0.7
    }}>max-concurrency = {selConc}</div>
                      <button style={s.iconButton} onClick={() => copyBench("speed", speedCmd)}>
                        {benchCopied === "speed" ? "✓ Copied" : "⧉ Copy"}
                      </button>
                    </div>
                    <pre style={s.commandPre}>{speedCmd}</pre>
                  </div>
                  <p style={{
      fontSize: 11,
      opacity: 0.7,
      margin: "0 0 4px"
    }}>
                    One command — switch the concurrency chip (or edit <code>--max-concurrency</code>) to reproduce each Speed column.
                  </p>
                </div>}

              <p style={{
      fontSize: 11,
      opacity: 0.7,
      marginTop: 12
    }}>
                Edit <code>CURL_HOST</code> / <code>CURL_PORT</code> in the Env panel.
              </p>
            </div>
          </div>;
  })()}
    </div>;
};

## Deployment

<a id="install" />

<Accordion title="Install SGLang">
  For all methods and hardware platforms, see the [official SGLang installation guide](../../../docs/get-started/install). The two paths below match the **Python / Docker** toggle in the command panel.

  <Tabs>
    <Tab title="Python (pip / uv)">
      DeepSeek-V4.1 Flash support has **not shipped in an SGLang release yet**, so a stock `pip install sglang` cannot serve it. Use the preview Docker image below.
    </Tab>

    <Tab title="Docker">
      For how to launch the image, see [Install → Method 3: Using Docker](../../../docs/get-started/install#method-3-using-docker).

      **NVIDIA GPUs** — every NVIDIA cell on this page uses the preview build `lmsysorg/sglang:dev-dsv41` (H200 / B200 / B300 / GB300); the command panel picks it automatically.

      ```bash Command theme={null}
      docker pull lmsysorg/sglang:dev-dsv41

      docker run --gpus all \
          --shm-size 32g \
          -p 30000:30000 \
          -v ~/.cache/huggingface:/root/.cache/huggingface \
          --env "HF_TOKEN=<your-hf-token>" \
          --ipc=host \
          lmsysorg/sglang:dev-dsv41 \
          sglang serve <use args below>
      ```

      **AMD GPUs (ROCm)** — ROCm support for this model is likewise a preview build, `lmsysorg/sglang:dev-dsv41-mi35x`; the command panel picks it automatically for the MI350X cell.

      ```bash Command theme={null}
      docker pull lmsysorg/sglang:dev-dsv41-mi35x

      docker run \
          --device=/dev/kfd --device=/dev/dri \
          --group-add video \
          --cap-add=SYS_PTRACE --security-opt seccomp=unconfined \
          --shm-size 32g --ipc=host \
          -p 30000:30000 \
          -v ~/.cache/huggingface:/root/.cache/huggingface \
          --env "HF_TOKEN=<your-hf-token>" \
          lmsysorg/sglang:dev-dsv41-mi35x \
          sglang serve <use args below>
      ```
    </Tab>
  </Tabs>
</Accordion>

Pick your hardware + recipe to generate the launch command:

* **Low-Latency** — fastest reply for a single user. Pick for chat.
* **High-Throughput** — most tokens per second across many users. Best for batch jobs.

<Deployment config={config} />

## Playground

The Playground is where you experiment with **SGLang features beyond the verified matrix**. The Deploy panel above only emits combinations the SGLang team has signed off on; the Playground lets you turn on additional knobs on top of whichever cell the Deploy panel is currently showing.

<Playground config={config} />

## 1. Model Introduction

**DeepSeek-V4.1 Flash** is a sparse-attention Mixture-of-Experts model (`model_type: deepseek_v4.1`) served through SGLang's `dsv4` backend: 40 decoder layers, 384 routed experts at top-6 plus one shared expert, fp8 dense weights at a 32-wide `ue8m0` block scale with fp4 routed experts. It also carries **DSpark**, its own three-stage speculative draft, which the Low-Latency recipe turns on.

**Architecture.** Every layer keeps one 512-wide KV latent per position and uses it as both key and value for all 64 query heads, with no separate value projection. Each layer reads two stores that behave oppositely: **compressed latents**, produced only at source layers and shared forward, collapsing 2 positions into 1 in layers 2–19 and 1-to-1 from layer 20 on; and a **128-position sliding window**, recomputed per layer from that layer's own activations, so it can never be shared but also never grows with context. Consumers address a source's cache by plain `loc // ratio` arithmetic with no mapping table, so compressed state lives and dies with the full prefix for free. The residual stream is four parallel copies mixed by a per-token doubly stochastic matrix; each sublayer's mixing coefficients are consumed by the *next* sublayer, which lets that projection overlap the main GEMMs.

**Sparse retrieval.** KV source layers and index source layers are different lists — four of the former, eight of the latter. The four extra index layers produce no keys at all; they re-score layer 20's keys with their own query, so retrieval decisions are made twice as often as keys are stored. Each retrieving layer picks a top-512 candidate set.

**Engram.** An additive n-gram hash memory at two layers. Token ids are normalized *before* hashing, so `" The"`, `"the"` and `"THE"` cannot fork into separate rows. Its two fp8 tables are the largest single block of weight in the checkpoint, and by default they load row-sharded across the TP group, which costs an all-reduce per engram layer. `SGLANG_ENABLE_DSV41_ENGRAM_HOST_TABLE=1` (**opt-in**) moves them to one shared host copy instead: both all-reduces disappear, the freed HBM goes to the KV pool, and output is bitwise unchanged — at the cost of host RAM, a longer load, and needing huge-page backing to keep the gather cheap.

**SWA bounded replay.** Because the window store is per-layer and cheap to rebuild, it need not all be recomputed. `--enable-decoder-swa-bounded-replay` (**opt-in**) runs the early layers over the whole extend and the late layers over only each request's last 128 tokens, sharing late-layer KV from source layer 20. Prefill gets materially faster. It is validated on the decode path only, refuses prompt logprobs by design, is not numerically equivalent to full prefill, and is excluded at launch with the prefill CUDA graph and with DP attention.

**Kernels.** At decode token counts these kernels are launch-bound rather than bandwidth-bound, so the work is fusion and overlap: the compressor projection, ratio-2 pooling, RoPE with fp4 quantization and indexer packing, paged fp4 indexer scoring with top-k resolved straight to cache addresses, and the mHC statistics and Sinkhorn — with compression, indexing and mHC overlapped against attention and FFN on dedicated streams. All of it is selected automatically; the environment switches it once sat behind were removed, so there is nothing to turn on. One caveat outranks the fusions: **output is not bitwise stable across batch composition today** — two default kernels are shape-guarded to a single token — and `--enable-deterministic-inference` is refused on this backend.

**Recommended generation:** reasoning evaluations were run at `temperature=1.0`, `top_p=0.95` with reasoning effort `max` (informational — do not hardcode these in application code).

**Resources:** [HuggingFace](https://huggingface.co/deepseek-ai/DeepSeek-V4.1-Flash).

## 2. Configuration Tips

### Do not override the backends

`--attention-backend`, `--moe-runner-backend` and `--fp8-gemm-backend` are selected automatically from the model, hardware, forward mode and shape. On GB300 they resolve to `dsv4` / `flashinfer_mxfp4` / `flashinfer_cutedsl`. Confirm them in the startup log rather than passing them.

Overriding them is the most common cause of a disappointing measurement: it leaves the 32-wide ue8m0 blocks on the Triton `_w8a8_block_fp8_matmul` fallback, which dominates the decode step and costs most of the model's bs=1 throughput. If your decode rate looks like a small fraction of what you expected, check the resolved backends first.

## 3. Advanced Usage

### 3.1 Reasoning

Enable the reasoning parser — `--reasoning-parser auto` resolves to `deepseek-v41` (toggle **Reasoning Parser** in the **Parsers** card of the [Playground above](#playground)) to separate thinking from the final answer. The parser puts the thinking block in `reasoning_content` and the answer in `content`; without it both arrive concatenated in `content`.

<Accordion title="Reasoning Example (Python)">
  ```python Example theme={null}
  from openai import OpenAI

  client = OpenAI(base_url="http://localhost:30000/v1", api_key="EMPTY")
  resp = client.chat.completions.create(
      model="deepseek-ai/DeepSeek-V4.1-Flash",
      messages=[{"role": "user", "content": "What is 15% of 240?"}],
  )
  msg = resp.choices[0].message
  print("Reasoning:", getattr(msg, "reasoning_content", None))
  print("Answer:", msg.content)
  ```
</Accordion>

Reasoning effort is part of the request contract for this model: send `reasoning_effort` on the request, either as a tier or as an integer budget. Tiers with no V4.1 counterpart (`none`, `minimal`, `medium`) log a warning and fall back to the server-side default rather than erroring; that default is `high`, and `SGLANG_DSV41_REASONING_EFFORT` overrides it.

### 3.2 Tool Calling

Enable the tool-call parser — `--tool-call-parser auto` resolves to `deepseekv41` (toggle **Tool Call Parser** in the **Parsers** card of the [Playground above](#playground)) to surface structured tool calls via `message.tool_calls`. DeepSeek-V4.1 uses spaced DSML tool tags, which the stock DeepSeek-V4 detector does not parse — the `deepseekv41` detector is required.

<Accordion title="Tool Calling Example (Python)">
  ```python Example theme={null}
  from openai import OpenAI

  client = OpenAI(base_url="http://localhost:30000/v1", api_key="EMPTY")
  tools = [{
      "type": "function",
      "function": {
          "name": "get_weather",
          "description": "Get the current weather in a city",
          "parameters": {
              "type": "object",
              "properties": {"location": {"type": "string"}},
              "required": ["location"],
          },
      },
  }]

  resp = client.chat.completions.create(
      model="deepseek-ai/DeepSeek-V4.1-Flash",
      messages=[{"role": "user", "content": "What's the weather in Beijing?"}],
      tools=tools,
  )
  choice = resp.choices[0]
  print("finish_reason:", choice.finish_reason)
  print("tool_calls:", choice.message.tool_calls)
  print("reasoning:", getattr(choice.message, "reasoning_content", None))
  ```
</Accordion>

A successful call returns `finish_reason: "tool_calls"` with a single `get_weather` entry whose arguments carry the requested location. If you see the raw DSML markup in `content` instead, the parser flag is missing.

### 3.3 Speculative Decoding (DSpark)

DSpark is DeepSeek-V4.1 Flash's own bundled draft — there is no EAGLE or MTP path for this model, and no `--speculative-num-steps` knob (the draft-token count is resolved from the checkpoint). Turn it on with `--speculative-algorithm DSPARK --speculative-dspark-block-size 5`, which is what the Low-Latency cells do.

What to expect:

* A DSpark step costs meaningfully more than a plain decode step, so the win at bs=1 is roughly the accept length divided by that fixed step cost. It is a real speed-up on interactive workloads, but not proportional to the number of draft tokens.
* Acceptance is strongly workload-dependent — highest on maths and code, lower on open-ended chat, lower still on agentic traces. Size your expectations from the workload you actually run, and measure it rather than assuming.
* The step cost does not move with accept length or with the draft block size, so tuning `--speculative-dspark-block-size` will not buy throughput. This is also why the High-Throughput recipe turns speculation off: at large batch the fixed step cost stops paying for itself.

### 3.4 PD Disaggregation

Prefill/decode disaggregation is validated token-identical against a single server across 32 greedy prompts, with GSM8K matching through the router. Use the **PD Disaggregation** card in the Playground to generate the prefill role, the decode role and the router command.

One deployment note: Mooncake needs the RDMA fabric visible inside the container, so launch with `--device /dev/infiniband:/dev/infiniband --cap-add IPC_LOCK --ulimit memlock=-1`. Without it Mooncake selects its NVLink transport, which only serves buffers from its own allocator and fails with `Requested address ... not found`. If you hit that, force TCP with `MOONCAKE_PROTOCOL=tcp` and `MC_FORCE_TCP=1` — the Playground's Mooncake option sets both.

PD and speculative decoding cannot be combined.
