diff --git a/.claude/skills/cookbook-add-model/SKILL.md b/.claude/skills/cookbook-add-model/SKILL.md
index 8aa3e9fd0..85193479f 100644
--- a/.claude/skills/cookbook-add-model/SKILL.md
+++ b/.claude/skills/cookbook-add-model/SKILL.md
@@ -135,7 +135,8 @@ this table (RTX PRO 6000, GH200, future chips) goes in the model's own `config.h
    - `supportedHardware` + the EXAMPLE cells: keep your tested families; **delete the
      `mi*` ids + AMD example cell if no AMD recipe**, etc. A GPU not in the shared catalog
      (e.g. RTX PRO 6000) → declare it in `config.hardware` and add its id here.
-   - `playgroundFeatures` axes: delete `megamoe` (non-Blackwell-MoE), `hisparse`
+   - `playgroundFeatures` axes: remove the `megamoe` backend option + the
+     `megamoeQuant` block from the `moe` axis (non-Blackwell-MoE), delete `hisparse`
      (non-DSA), `pdDisagg`/`router` (no PD), the `parsers` axis (no parsers), etc.
    - `quantizations` / `variants`: drop what the model doesn't ship; collapse `variants`
      to single `default` if there's no variant axis (then drop the `variant` half of
diff --git a/.claude/skills/cookbook-add-model/references/authoring-reference.md b/.claude/skills/cookbook-add-model/references/authoring-reference.md
index afc83e491..9d35f2836 100644
--- a/.claude/skills/cookbook-add-model/references/authoring-reference.md
+++ b/.claude/skills/cookbook-add-model/references/authoring-reference.md
@@ -109,13 +109,12 @@ the `_playground.jsx` header):
 | Axis key | Widget | Use when |
 |---|---|---|
 | `attention` | TP / CP / DP-Attention sub-knobs (DP-Attention is a combined knob: its value is the DP degree AND toggles `--enable-dp-attention`) | Model exposes parallelism knobs in its cells (§2.2) and you want users to override them. |
-| `moe` | Backend select + EP knob | Model is MoE and supports multiple `--moe-*-backend` choices. |
+| `moe` | Backend select (incl. MegaMoE) + EP knob; picking the MegaMoE backend reveals a Quantization sub-select (W4A8/W4A4) | Model is MoE and supports multiple `--moe-*-backend` choices. For Blackwell MoE kernel-fusion, give the `megamoe` backend option a `requiresHw` (and optional `excludesStrategy`) gate, then add a sibling `megamoeQuant` block (`{stripEnv, options}`): W4A8 = `NUM_MAX` only, W4A4 adds the FP4-activations env vars; both strip the DeepEP dispatch env. |
 | `parsers` | Multi-toggle | Model has reasoning / tool-call parsers. |
 | `speculative` | Single-select chip group | Model has spec-decoding presets you want to expose. |
 | `pdDisagg` | Mode + transfer backend (+ optional per-backend env via `envWhen` hw-gate) + IB device + optional `router{port, command}` | Model supports prefill/decode disaggregation. When a PD role is active and `router` is set, the playground shows the router (SGLang Model Gateway) launch command as a separate companion block and retargets the cURL modal to `router.port` (clients hit the router, not the role servers). |
 | `hicache` | Enable + storage + write policy | Model is large enough that hierarchical KV cache matters. |
 | `hisparse` | Enable + host-ratio select; whole card gated on the live PD-Disagg mode being `decode` | DSA-style model (DeepSeek-V3.2 / V4, GLM-5) that supports decode-side hierarchical sparse attention. |
-| `megamoe` | Single-select with hw/strategy gating | Blackwell-only kernel fusion variant. |
 
 **Per-chip constraints**: any chip entry in any axis can be wrapped with
 `hide` / `disable` constraint objects:
diff --git a/.claude/skills/cookbook-add-model/references/engine-axis.md b/.claude/skills/cookbook-add-model/references/engine-axis.md
index 5b67edd60..8d82c656b 100644
--- a/.claude/skills/cookbook-add-model/references/engine-axis.md
+++ b/.claude/skills/cookbook-add-model/references/engine-axis.md
@@ -1,11 +1,12 @@
 # Engine extension: add a new playground feature axis
 
 Loaded on demand by the `cookbook-add-model` skill. **Rare** — adding a model
-cookbook is data-only and never needs this. The current 8 built-in axes
+cookbook is data-only and never needs this. The current 7 built-in axes
 (`attention`, `moe`, `parsers`, `speculative`, `pdDisagg`, `hicache`,
-`hisparse`, `megamoe`) already cover the SGLang feature surface most cookbooks
-need. Only add a new axis if a real cookbook needs it and the feature does not
-fit any existing axis. Touches `_playground.jsx` only.
+`hisparse`) already cover the SGLang feature surface most cookbooks need.
+(MegaMoE is not its own axis — it lives inside `moe` as a backend option +
+a `megamoeQuant` sub-select.) Only add a new axis if a real cookbook needs it
+and the feature does not fit any existing axis. Touches `_playground.jsx` only.
 
 For the per-model config/cells/MDX reference see [authoring-reference.md](authoring-reference.md).
 
@@ -94,7 +95,7 @@ Template:
   // also receives the derived
   // value (as `derived`) and may use it as a no-op shortcut when the
   // user's pick matches base. Skip when your axis owns flags that never
-  // appear in base cells (PD-Disagg / HiCache / MegaMoE).
+  // appear in base cells (PD-Disagg / HiCache).
   // deriveFromBase: (cell, fc, h) => ({ ... }) | null,
 
   // Optional: hints for the renderer. Currently only pdDisagg uses this
@@ -103,7 +104,7 @@ Template:
 
   // Returns the axis card JSX. The outer div MUST have key={axisId} so
   // React can track it in the engine's map loop. Return null for
-  // axis-level gating (e.g. MegaMoE on Hopper). Lay out as a single
+  // axis-level gating (e.g. HiSparse when the live PD mode isn't `decode`). Lay out as a single
   // compact horizontal row: title on the left, fields after.
   render: ({ axisId, value, setValue, fc, base, s, h, renderChip, renderSelect, derived }) => {
     if (/* axis-level gating fails */) return null;
@@ -147,7 +148,7 @@ Template:
     the **default** compact control (a `<select>` dropdown). It filters
     hidden chips and disables greyed-out ones internally — no per-chip
     `evaluateChip` loop needed in the render body. Most axes use it
-    (attention, moe, pdDisagg, hisparse, hicache, megamoe). Pass
+    (attention, moe, pdDisagg, hisparse, hicache). Pass
     `{ hideValues: [<sentinel>] }` when your `deriveFromBase` resolved to
     a real value, so the inherit-sentinel ("Auto" / "Inherited" /
     "current") doesn't clutter the dropdown.
@@ -206,7 +207,8 @@ emits flags that should land somewhere specific, include the most likely
 anchor prefixes in your call. Order doesn't matter (set semantics).
 
 **Conditional strips** — Some axes strip ONLY when overridden
-(`attention.tp`, `moe.backend`, `speculative`, `megamoe`). Others strip
+(`attention.tp`, `moe.backend` (incl. the MegaMoE quant env), `speculative`).
+Others strip
 UNCONDITIONALLY whenever declared (`parsers`, `pdDisagg`, `hicache`). The
 header comment in `AXIS_HANDLERS` documents which policy each axis uses;
 follow the same pattern when adding a new axis. If unsure, prefer
@@ -214,9 +216,9 @@ conditional strip — it preserves base behavior when the user does not
 opt in.
 
 **Closure of `AXIS_HANDLERS`** — Inside a handler method, you can
-reference `AXIS_HANDLERS.<otherAxis>` for cross-handler calls (megamoe
-does this for `_gateOpen`). This works because `AXIS_HANDLERS` is in
-lexical scope. Do NOT use this for general logic — it tightly couples
+reference `AXIS_HANDLERS.<otherAxis>` for cross-handler calls (no built-in
+axis currently needs this, but it works because `AXIS_HANDLERS` is in
+lexical scope). Do NOT use this for general logic — it tightly couples
 handlers. Reserve it for one handler's helpers shared between its own
 `render` and `revertHidden`.
 
diff --git a/.claude/skills/cookbook-add-model/templates/config.jsx.tmpl b/.claude/skills/cookbook-add-model/templates/config.jsx.tmpl
index ce3c1f5a2..a5bec531a 100644
--- a/.claude/skills/cookbook-add-model/templates/config.jsx.tmpl
+++ b/.claude/skills/cookbook-add-model/templates/config.jsx.tmpl
@@ -178,10 +178,32 @@ sgl-eval run gsm8k \\
         options: [
           { id: null,               label: "Inherited" },
           { id: "deepep",           label: "DeepEP",            flags: ["--moe-a2a-backend deepep"] },
+          // KEEP the MegaMoE option + the megamoeQuant block below ONLY for Blackwell
+          // MoE kernel-fusion models; DELETE both otherwise. requiresHw gates it to
+          // Blackwell (the engine hides it elsewhere); add excludesStrategy: [...] too
+          // for a strategy gate. Selecting MegaMoE reveals the Quantization sub-select.
+          { id: "megamoe",          label: "MegaMoE",           flags: ["--moe-a2a-backend megamoe"],
+            requiresHw: ["b200", "b300", "gb200", "gb300"] },
           { id: "flashinfer_mxfp4", label: "FlashInfer (MXFP4)", flags: ["--moe-runner-backend flashinfer_mxfp4"] },
           { id: "marlin",           label: "Marlin (W4A16)",    flags: ["--moe-runner-backend marlin"] },
         ],
       },
+      // MegaMoE quantization sub-select — shown only when backend === "megamoe".
+      // W4A4 adds the FP4-activations env vars; both strip the DeepEP dispatch env.
+      // DELETE this block if there's no MegaMoE backend option above.
+      megamoeQuant: {
+        stripEnv: ["SGLANG_DEEPEP_NUM_MAX_DISPATCH_TOKENS_PER_RANK"],
+        options: [
+          { id: "w4a8", label: "W4A8",
+            env: ["SGLANG_OPT_DEEPGEMM_MEGA_MOE_NUM_MAX_TOKENS_PER_RANK=8320"] },
+          { id: "w4a4", label: "W4A4",
+            env: [
+              "SGLANG_OPT_DEEPGEMM_MEGA_MOE_NUM_MAX_TOKENS_PER_RANK=8320",
+              "SGLANG_OPT_DEEPGEMM_MEGA_MOE_USE_FP4_ACTS=1",
+              "SGLANG_OPT_DEEPGEMM_MEGA_MOE_USE_MXF4_KIND=1",
+            ] },
+        ],
+      },
       ep: { label: "EP", values: [
         null, 1, 2, 4, 8,
         { value: 16, disable: { nodes: ["single"] },
@@ -275,19 +297,6 @@ sgl-eval run gsm8k \\
       ],
       defaultHostRatio: 10,
     },
-
-    // ----- Card: "MegaMoE" -----  KEEP only for Blackwell MoE kernel-fusion models.
-    megamoe: {
-      requiresHw: ["b200", "b300", "gb200", "gb300"],
-      excludesStrategy: ["low-latency", "balanced"],
-      stripEnv: ["SGLANG_DEEPEP_NUM_MAX_DISPATCH_TOKENS_PER_RANK"],
-      options: [
-        { id: "disabled", label: "Disabled" },
-        { id: "w4a8",     label: "W4A8",
-          flags: ["--moe-a2a-backend megamoe"],
-          env: ["SGLANG_OPT_DEEPGEMM_MEGA_MOE_NUM_MAX_TOKENS_PER_RANK=8320"] },
-      ],
-    },
   },
 
   // EXAMPLE cells — one per hardware family to show the shape. REPLACE each with
diff --git a/.claude/skills/cookbook-review-pr/SKILL.md b/.claude/skills/cookbook-review-pr/SKILL.md
index 7cd00e95a..fd8fc46f8 100644
--- a/.claude/skills/cookbook-review-pr/SKILL.md
+++ b/.claude/skills/cookbook-review-pr/SKILL.md
@@ -53,8 +53,8 @@ than restating.
   NVL72) — NOT every `multi-N` hw (standard-IB DeepEP / Marlin multi-node don't need it).
 - `github.cookbookModel` matches the issue-template `model` dropdown value.
 - `playgroundFeatures` axes are pruned to what the model supports — no empty/stub axes
-  (`megamoe` only on Blackwell MoE; `hisparse` only DSA-style; `pdDisagg.router` only with
-  a PD topology).
+  (the `moe` axis's MegaMoE backend option + `megamoeQuant` block only on Blackwell MoE,
+  gated by `requiresHw`; `hisparse` only DSA-style; `pdDisagg.router` only with a PD topology).
 - **No leftover `__TOKEN__`** — the config was stamped from the template and every
   placeholder is filled (`grep -rn '__[A-Z_]*__'` on the new config/benchmarks/MDX returns
   nothing).
diff --git a/docs_new/src/snippets/_playground.jsx b/docs_new/src/snippets/_playground.jsx
index 63ca59541..561096f39 100644
--- a/docs_new/src/snippets/_playground.jsx
+++ b/docs_new/src/snippets/_playground.jsx
@@ -7,13 +7,12 @@
 // `config.playgroundFeatures` — a keyed map where each present key opts that
 // axis in. Recognised axes:
 //   attention   — TP/CP/DP-Attention knobs
-//   moe         — backend + EP
+//   moe         — backend (+ MegaMoE quantization sub-select) + EP
 //   parsers     — per-item toggle flags
 //   speculative — single-select preset
 //   pdDisagg     — role + transfer backend + IB device + optional router
 //   hicache     — enable + backend + write policy
 //   hisparse    — enable + host ratio (decode-only)
-//   megamoe     — single-select, Blackwell-only
 //
 // Adding an axis = one entry in AXIS_HANDLERS below; nothing else switches on
 // an axis id. Each handler implements initState / revertHidden / apply /
@@ -354,18 +353,25 @@ export const Playground = ({ config }) => {
     },
 
     // ---- Axis: MoE Parallelism ----------------------------------------------
-    // Backend single-select + EP numeric knob; either is optional.
+    // Backend single-select + EP numeric knob; either is optional. Picking the
+    // "megamoe" backend reveals a Quantization sub-select (W4A8 / W4A4) in the same
+    // row — W4A4 adds the FP4-activations env vars.
     moe: {
-      initState: () => ({ backend: null, ep: null }),
+      initState: () => ({ backend: null, ep: null, mmQuant: null }),
 
       // Prefer --moe-a2a-backend over --moe-runner-backend when both present.
+      // mmQuant is derived from the base env (FP4 activations present → W4A4).
       deriveFromBase: (cell, fc, h) => {
         const flags = (cell && cell.flags) || [];
+        const baseEnv = (cell && cell.env) || [];
         const a2a    = h.findFlagArg(flags, "--moe-a2a-backend");
         const runner = h.findFlagArg(flags, "--moe-runner-backend");
+        const fp4Acts = baseEnv.some(
+          (e) => e.startsWith("SGLANG_OPT_DEEPGEMM_MEGA_MOE_USE_FP4_ACTS"));
         return {
           backend: a2a || runner || null,
           ep: h.parseIntFlag(flags, "--ep"),
+          mmQuant: fp4Acts ? "w4a4" : "w4a8",
         };
       },
 
@@ -376,6 +382,15 @@ export const Playground = ({ config }) => {
             && h.isHidden(fc.backend.options, next.backend, base)) {
           next.backend = null; changed = true;
         }
+        // MegaMoE backend availability — gated by its option's requiresHw /
+        // excludesStrategy (this model gates by hw only; the check is generic).
+        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));
+        if (next.backend === "megamoe" && !mmAvail) {
+          next.backend = null; changed = true;
+        }
         if (next.ep !== null && fc.ep?.values
             && h.isHidden(fc.ep.values, next.ep, base)) {
           next.ep = null; changed = true;
@@ -383,7 +398,7 @@ export const Playground = ({ config }) => {
         return changed ? next : value;
       },
 
-      apply: ({ flags, env, value, fc, h }) => {
+      apply: ({ flags, env, value, fc, h, derived }) => {
         if (value.backend !== null) {
           flags = h.stripFlagsByFirstToken(flags, [
             "--moe-a2a-backend", "--moe-runner-backend",
@@ -393,6 +408,28 @@ export const Playground = ({ config }) => {
             flags = h.insertAfter(flags, h.ANCHOR_NEAR_DPATTN, opt.flags);
           }
         }
+        // MegaMoE owns the MoE path: when the effective backend is megamoe, strip the
+        // DeepEP dispatch + any prior megamoe env, then re-add the selected quant's
+        // env. When the backend is explicitly switched away from megamoe, only drop
+        // the megamoe quant env (leave DeepEP dispatch intact).
+        const mq = fc.megamoeQuant;
+        if (mq) {
+          const quantKeys = [];
+          for (const o of (mq.options || [])) {
+            for (const e of (o.env || [])) quantKeys.push(e.split("=")[0]);
+          }
+          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?.env?.length) env = [...env, ...opt.env];
+          } else if (value.backend !== null) {
+            env = h.stripEnvByPrefix(env, quantKeys);
+          }
+        }
         if (value.ep !== null) {
           flags = h.stripFlagsByFirstToken(flags, ["--ep"]);
           if (value.ep > 1) {
@@ -416,6 +453,12 @@ export const Playground = ({ config }) => {
           const d = derived ? derived[k] : null;
           return (d !== null && d !== undefined) ? [null] : [];
         };
+        // Hide the MegaMoE backend option where its requiresHw / excludesStrategy exclude this base.
+        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";
         return (
           <div key={axisId} style={s.card}>
             <div style={s.compactRow}>
@@ -425,7 +468,16 @@ export const Playground = ({ config }) => {
                   <span style={s.fieldLabel}>Backend</span>
                   {renderSelect(slotDisplay("backend"), fc.backend.options || [],
                     (v) => setSlot("backend", v), base, undefined,
-                    { hideValues: hideNull("backend") })}
+                    { 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>
               )}
               {fc.ep && (
@@ -863,60 +915,6 @@ export const Playground = ({ config }) => {
       },
     },
 
-    // ---- Axis: MegaMoE ------------------------------------------------------
-    // Single-select with axis-level gating (requiresHw / excludesStrategy)
-    // plus per-option hide constraints and env mutation (stripEnv + option.env).
-    megamoe: {
-      initState: () => "disabled",
-
-      revertHidden: (value, fc, base, h) => {
-        const hwGate    = !fc.requiresHw       || fc.requiresHw.includes(base.hw);
-        const stratGate = !fc.excludesStrategy || !fc.excludesStrategy.includes(base.strategy);
-        if (!hwGate || !stratGate) {
-          return value === "disabled" ? value : "disabled";
-        }
-        if (value !== "disabled" && h.isHidden(fc.options || [], value, base)) {
-          return "disabled";
-        }
-        return value;
-      },
-
-      apply: ({ flags, env, value, fc, h }) => {
-        if (!value || value === "disabled") return { flags, env };
-        const opt = (fc.options || []).find((o) => o.id === value);
-        if (!opt) return { flags, env };
-        flags = h.stripFlagsByFirstToken(flags, [
-          "--moe-a2a-backend", "--moe-runner-backend",
-        ]);
-        if (opt.flags?.length) {
-          flags = h.insertAfter(flags, h.ANCHOR_NEAR_DPATTN, opt.flags);
-        }
-        const ownedEnvKeys = [...(fc.stripEnv || [])];
-        for (const o of (fc.options || [])) {
-          for (const e of (o.env || [])) ownedEnvKeys.push(e.split("=")[0]);
-        }
-        env = h.stripEnvByPrefix(env, ownedEnvKeys);
-        if (opt.env?.length) env = [...env, ...opt.env];
-        return { flags, env };
-      },
-
-      render: ({ axisId, value, setValue, fc, base, s, renderSelect }) => {
-        const hwGate    = !fc.requiresHw       || fc.requiresHw.includes(base.hw);
-        const stratGate = !fc.excludesStrategy || !fc.excludesStrategy.includes(base.strategy);
-        if (!hwGate || !stratGate) return null;
-        return (
-          <div key={axisId} style={s.card}>
-            <div style={s.compactRow}>
-              <span style={s.axisTitle}>MegaMoE</span>
-              <span style={s.field}>
-                {renderSelect(value, fc.options || [], setValue, base)}
-              </span>
-            </div>
-          </div>
-        );
-      },
-    },
-
   };
 
   // ==========================================================================
@@ -1527,8 +1525,7 @@ export const Playground = ({ config }) => {
   const dpAttnOn = (effDpAttn === true)
     || (typeof effDpAttn === "number" && effDpAttn > 0);
   const pdMode = (deltas.pdDisagg && deltas.pdDisagg.mode) || "off";
-  const megamoeOn = !!(deltas.megamoe && deltas.megamoe !== "disabled");
-  const constraintBase = { ...base, dpAttnOn, pdMode, megamoeOn };
+  const constraintBase = { ...base, dpAttnOn, pdMode };
 
   let baseCommand = "";
   let playgroundCommand = "";
diff --git a/docs_new/src/snippets/configs/deepseek-ai/deepseek-v4-benchmarks.jsx b/docs_new/src/snippets/configs/deepseek-ai/deepseek-v4-benchmarks.jsx
index cc1deeea4..347831bc0 100644
--- a/docs_new/src/snippets/configs/deepseek-ai/deepseek-v4-benchmarks.jsx
+++ b/docs_new/src/snippets/configs/deepseek-ai/deepseek-v4-benchmarks.jsx
@@ -10,9 +10,9 @@ export const benchmarks = [
     sglang_version: "0.5.12.post1",
     speed: [
       { workload: { dataset: "random", isl: 8192, osl: 1024, max_concurrency: 1 },
-        ttft_ms: 428, tpot_ms: 3.53, tokens_per_sec_per_gpu: 44 },
+        ttft_ms: 87, tpot_ms: 3.68, tokens_per_sec_per_gpu: 65 },
       { workload: { dataset: "random", isl: 8192, osl: 1024, max_concurrency: 16 },
-        ttft_ms: 3111, tpot_ms: 23.82, tokens_per_sec_per_gpu: 121 },
+        ttft_ms: 290, tpot_ms: 6.21, tokens_per_sec_per_gpu: 489 },
     ],
   },
   {
@@ -30,9 +30,9 @@ export const benchmarks = [
     sglang_version: "0.5.12.post1",
     speed: [
       { workload: { dataset: "random", isl: 8192, osl: 1024, max_concurrency: 1024 },
-        ttft_ms: 105918, tpot_ms: 70.73, tokens_per_sec_per_gpu: 881 },
+        ttft_ms: 99949, tpot_ms: 67.46, tokens_per_sec_per_gpu: 939 },
       { workload: { dataset: "random", isl: 8192, osl: 1024, max_concurrency: 4096 },
-        ttft_ms: 273356, tpot_ms: 71.61, tokens_per_sec_per_gpu: 889 },
+        ttft_ms: 253310, tpot_ms: 66.11, tokens_per_sec_per_gpu: 964 },
     ],
   },
   {
@@ -59,9 +59,9 @@ export const benchmarks = [
     sglang_version: "0.5.12.post1",
     speed: [
       { workload: { dataset: "random", isl: 8192, osl: 1024, max_concurrency: 1 },
-        ttft_ms: 205, tpot_ms: 3.43, tokens_per_sec_per_gpu: 54 },
+        ttft_ms: 88, tpot_ms: 3.67, tokens_per_sec_per_gpu: 66 },
       { workload: { dataset: "random", isl: 8192, osl: 1024, max_concurrency: 16 },
-        ttft_ms: 1856, tpot_ms: 14.82, tokens_per_sec_per_gpu: 205 },
+        ttft_ms: 266, tpot_ms: 6.06, tokens_per_sec_per_gpu: 495 },
     ],
   },
   {
@@ -79,9 +79,9 @@ export const benchmarks = [
     sglang_version: "0.5.12.post1",
     speed: [
       { workload: { dataset: "random", isl: 8192, osl: 1024, max_concurrency: 1024 },
-        ttft_ms: 82556, tpot_ms: 55.37, tokens_per_sec_per_gpu: 1130 },
+        ttft_ms: 97028, tpot_ms: 65.09, tokens_per_sec_per_gpu: 966 },
       { workload: { dataset: "random", isl: 8192, osl: 1024, max_concurrency: 4096 },
-        ttft_ms: 207987, tpot_ms: 54.05, tokens_per_sec_per_gpu: 1171 },
+        ttft_ms: 243335, tpot_ms: 63.98, tokens_per_sec_per_gpu: 998 },
     ],
   },
   {
@@ -89,9 +89,9 @@ export const benchmarks = [
     sglang_version: "0.5.12.post1",
     speed: [
       { workload: { dataset: "random", isl: 8192, osl: 1024, max_concurrency: 1 },
-        ttft_ms: 239, tpot_ms: 5.04, tokens_per_sec_per_gpu: 24 },
+        ttft_ms: 261, tpot_ms: 5.01, tokens_per_sec_per_gpu: 23 },
       { workload: { dataset: "random", isl: 8192, osl: 1024, max_concurrency: 16 },
-        ttft_ms: 830, tpot_ms: 15.55, tokens_per_sec_per_gpu: 101 },
+        ttft_ms: 364, tpot_ms: 11.37, tokens_per_sec_per_gpu: 137 },
     ],
   },
   {
@@ -106,26 +106,12 @@ export const benchmarks = [
   },
   {
     match: { hw: "b300", variant: "pro", quant: "fp4", strategy: "high-throughput", nodes: "single" },
-    sglang_version: "0.5.12.post1",
-    speed: [
-      { workload: { dataset: "random", isl: 8192, osl: 1024, max_concurrency: 1024 },
-        ttft_ms: 99139, tpot_ms: 44.37, tokens_per_sec_per_gpu: 476 },
-      { workload: { dataset: "random", isl: 8192, osl: 1024, max_concurrency: 4096 },
-        ttft_ms: 241544, tpot_ms: 43.51, tokens_per_sec_per_gpu: 492 },
-    ],
   },
   // ====================================================================
   // GB200 + FP4
   // ====================================================================
   {
     match: { hw: "gb200", variant: "flash", quant: "fp4", strategy: "low-latency", nodes: "single" },
-    sglang_version: "0.5.12.post1",
-    speed: [
-      { workload: { dataset: "random", isl: 8192, osl: 1024, max_concurrency: 1 },
-        ttft_ms: 335, tpot_ms: 3.67, tokens_per_sec_per_gpu: 47 },
-      { workload: { dataset: "random", isl: 8192, osl: 1024, max_concurrency: 16 },
-        ttft_ms: 2440, tpot_ms: 15.95, tokens_per_sec_per_gpu: 163 },
-    ],
   },
   {
     match: { hw: "gb200", variant: "flash", quant: "fp4", strategy: "balanced", nodes: "single" },
@@ -139,23 +125,9 @@ export const benchmarks = [
   },
   {
     match: { hw: "gb200", variant: "flash", quant: "fp4", strategy: "high-throughput", nodes: "single" },
-    sglang_version: "0.5.12.post1",
-    speed: [
-      { workload: { dataset: "random", isl: 8192, osl: 1024, max_concurrency: 1024 },
-        ttft_ms: 128397, tpot_ms: 84.95, tokens_per_sec_per_gpu: 757 },
-      { workload: { dataset: "random", isl: 8192, osl: 1024, max_concurrency: 4096 },
-        ttft_ms: 330479, tpot_ms: 86.7, tokens_per_sec_per_gpu: 741 },
-    ],
   },
   {
     match: { hw: "gb200", variant: "pro", quant: "fp4", strategy: "low-latency", nodes: "multi-2" },
-    sglang_version: "0.5.12.post1",
-    speed: [
-      { workload: { dataset: "random", isl: 8192, osl: 1024, max_concurrency: 1 },
-        ttft_ms: 343, tpot_ms: 6.47, tokens_per_sec_per_gpu: 18 },
-      { workload: { dataset: "random", isl: 8192, osl: 1024, max_concurrency: 16 },
-        ttft_ms: 1345, tpot_ms: 23.85, tokens_per_sec_per_gpu: 65 },
-    ],
   },
   {
     match: { hw: "gb200", variant: "pro", quant: "fp4", strategy: "balanced", nodes: "multi-2" },
@@ -168,13 +140,6 @@ export const benchmarks = [
   // ====================================================================
   {
     match: { hw: "gb300", variant: "flash", quant: "fp4", strategy: "low-latency", nodes: "single" },
-    sglang_version: "0.5.12.post1",
-    speed: [
-      { workload: { dataset: "random", isl: 8192, osl: 1024, max_concurrency: 1 },
-        ttft_ms: 380, tpot_ms: 4.4, tokens_per_sec_per_gpu: 38 },
-      { workload: { dataset: "random", isl: 8192, osl: 1024, max_concurrency: 16 },
-        ttft_ms: 2960, tpot_ms: 21.26, tokens_per_sec_per_gpu: 125 },
-    ],
   },
   {
     match: { hw: "gb300", variant: "flash", quant: "fp4", strategy: "balanced", nodes: "single" },
@@ -191,20 +156,13 @@ export const benchmarks = [
     sglang_version: "0.5.12.post1",
     speed: [
       { workload: { dataset: "random", isl: 8192, osl: 1024, max_concurrency: 1024 },
-        ttft_ms: 146954, tpot_ms: 97.24, tokens_per_sec_per_gpu: 662 },
+        ttft_ms: 154868, tpot_ms: 104.84, tokens_per_sec_per_gpu: 621 },
       { workload: { dataset: "random", isl: 8192, osl: 1024, max_concurrency: 4096 },
-        ttft_ms: 368557, tpot_ms: 99.33, tokens_per_sec_per_gpu: 651 },
+        ttft_ms: 386489, tpot_ms: 103.37, tokens_per_sec_per_gpu: 627 },
     ],
   },
   {
     match: { hw: "gb300", variant: "pro", quant: "fp4", strategy: "low-latency", nodes: "single" },
-    sglang_version: "0.5.12.post1",
-    speed: [
-      { workload: { dataset: "random", isl: 8192, osl: 1024, max_concurrency: 1 },
-        ttft_ms: 363, tpot_ms: 6.53, tokens_per_sec_per_gpu: 36 },
-      { workload: { dataset: "random", isl: 8192, osl: 1024, max_concurrency: 16 },
-        ttft_ms: 1275, tpot_ms: 20.75, tokens_per_sec_per_gpu: 152 },
-    ],
   },
   {
     match: { hw: "gb300", variant: "pro", quant: "fp4", strategy: "balanced", nodes: "single" },
diff --git a/docs_new/src/snippets/configs/deepseek-ai/deepseek-v4.jsx b/docs_new/src/snippets/configs/deepseek-ai/deepseek-v4.jsx
index 6b0950035..05b59b341 100644
--- a/docs_new/src/snippets/configs/deepseek-ai/deepseek-v4.jsx
+++ b/docs_new/src/snippets/configs/deepseek-ai/deepseek-v4.jsx
@@ -68,7 +68,8 @@ export const config = {
   --model {{MODEL_NAME}} \\
   --dataset-name {{DATASET}} \\
   --random-input-len {{ISL}} --random-output-len {{OSL}} \\
-  --num-prompts {{NUM_PROMPTS}} --max-concurrency {{MAX_CONCURRENCY}}`,
+  --num-prompts {{NUM_PROMPTS}} --max-concurrency {{MAX_CONCURRENCY}} \\
+  --warmup-requests 64`,
     accuracy: {
       gsm8k_pct:
 `# To install sgl-eval: pip install git+https://github.com/sgl-project/sgl-eval
@@ -112,7 +113,7 @@ sgl-eval run aime25 \\
   --base-url http://{{CURL_HOST}}:{{CURL_PORT}}/v1`,
       },
     },
-    numPromptsByConc: { 1: 8, 16: 32, 64: 128, 256: 512, 1024: 2048, 4096: 4096 },
+    numPromptsByConc: { 1: 32, 16: 32, 64: 128, 256: 512, 1024: 2048, 4096: 4096 },
   },
 
   // Per-variant accuracy applied to every cell; per-cell `accuracy` overrides.
@@ -182,21 +183,29 @@ sgl-eval run aime25 \\
         options: [
           { id: null,                label: "Inherited" },
           { id: "deepep",            label: "DeepEP",
-            flags: ["--moe-a2a-backend deepep"],
-            disable: { megamoeOn: [true] },
-            disableReason: "MegaMoE owns the MoE backend — turn MegaMoE off to pick one." },
+            flags: ["--moe-a2a-backend deepep"] },
+          // Blackwell-only; no strategy gate — the Playground allows MegaMoE on any
+          // strategy for experimentation (docs recommend it on high-throughput).
           { id: "megamoe",           label: "MegaMoE",
             flags: ["--moe-a2a-backend megamoe"],
-            disable: { megamoeOn: [true] },
-            disableReason: "MegaMoE owns the MoE backend — turn MegaMoE off to pick one." },
+            requiresHw: ["b200", "b300", "gb200", "gb300"] },
           { id: "flashinfer_mxfp4",  label: "FlashInfer (MXFP4)",
-            flags: ["--moe-runner-backend flashinfer_mxfp4"],
-            disable: { megamoeOn: [true] },
-            disableReason: "MegaMoE owns the MoE backend — turn MegaMoE off to pick one." },
+            flags: ["--moe-runner-backend flashinfer_mxfp4"] },
           { id: "marlin",            label: "Marlin (W4A16)",
-            flags: ["--moe-runner-backend marlin"],
-            disable: { megamoeOn: [true] },
-            disableReason: "MegaMoE owns the MoE backend — turn MegaMoE off to pick one." },
+            flags: ["--moe-runner-backend marlin"] },
+        ],
+      },
+      megamoeQuant: {
+        stripEnv: ["SGLANG_DEEPEP_NUM_MAX_DISPATCH_TOKENS_PER_RANK"],
+        options: [
+          { id: "w4a8", label: "W4A8",
+            env: ["SGLANG_OPT_DEEPGEMM_MEGA_MOE_NUM_MAX_TOKENS_PER_RANK=8320"] },
+          { id: "w4a4", label: "W4A4",
+            env: [
+              "SGLANG_OPT_DEEPGEMM_MEGA_MOE_NUM_MAX_TOKENS_PER_RANK=8320",
+              "SGLANG_OPT_DEEPGEMM_MEGA_MOE_USE_FP4_ACTS=1",
+              "SGLANG_OPT_DEEPGEMM_MEGA_MOE_USE_MXF4_KIND=1",
+            ] },
         ],
       },
       ep: { label: "EP", values: [
@@ -305,27 +314,6 @@ sgl-eval run aime25 \\
       ],
       defaultHostRatio: 10,
     },
-
-    // ----- Card 8: "MegaMoE" -----
-    // Blackwell-only, high-throughput only (see requiresHw / excludesStrategy).
-    megamoe: {
-      requiresHw: ["b200", "b300", "gb200", "gb300"],
-      excludesStrategy: ["low-latency", "balanced"],
-      stripEnv: ["SGLANG_DEEPEP_NUM_MAX_DISPATCH_TOKENS_PER_RANK"],
-      options: [
-        { id: "disabled", label: "Disabled" },
-        { id: "w4a8",     label: "W4A8",
-          flags: ["--moe-a2a-backend megamoe"],
-          env: ["SGLANG_OPT_DEEPGEMM_MEGA_MOE_NUM_MAX_TOKENS_PER_RANK=8320"] },
-        { id: "w4a4",     label: "W4A4",
-          flags: ["--moe-a2a-backend megamoe"],
-          env: [
-            "SGLANG_OPT_DEEPGEMM_MEGA_MOE_NUM_MAX_TOKENS_PER_RANK=8320",
-            "SGLANG_OPT_DEEPGEMM_MEGA_MOE_USE_FP4_ACTS=1",
-            "SGLANG_OPT_DEEPGEMM_MEGA_MOE_USE_MXF4_KIND=1",
-          ] },
-      ],
-    },
   },
 
   cells: [
@@ -377,8 +365,6 @@ sgl-eval run aime25 \\
       verified: true,
       env: [
         "SGLANG_OPT_DEEPGEMM_MEGA_MOE_NUM_MAX_TOKENS_PER_RANK=8320",
-        "SGLANG_OPT_DEEPGEMM_MEGA_MOE_USE_FP4_ACTS=1",
-        "SGLANG_OPT_DEEPGEMM_MEGA_MOE_USE_MXF4_KIND=1",
       ],
       flags: [
         "--trust-remote-code",
@@ -442,8 +428,6 @@ sgl-eval run aime25 \\
       verified: true,
       env: [
         "SGLANG_OPT_DEEPGEMM_MEGA_MOE_NUM_MAX_TOKENS_PER_RANK=8320",
-        "SGLANG_OPT_DEEPGEMM_MEGA_MOE_USE_FP4_ACTS=1",
-        "SGLANG_OPT_DEEPGEMM_MEGA_MOE_USE_MXF4_KIND=1",
       ],
       flags: [
         "--trust-remote-code",
@@ -508,8 +492,6 @@ sgl-eval run aime25 \\
       verified: true,
       env: [
         "SGLANG_OPT_DEEPGEMM_MEGA_MOE_NUM_MAX_TOKENS_PER_RANK=8320",
-        "SGLANG_OPT_DEEPGEMM_MEGA_MOE_USE_FP4_ACTS=1",
-        "SGLANG_OPT_DEEPGEMM_MEGA_MOE_USE_MXF4_KIND=1",
       ],
       flags: [
         "--trust-remote-code",
@@ -573,8 +555,6 @@ sgl-eval run aime25 \\
       verified: true,
       env: [
         "SGLANG_OPT_DEEPGEMM_MEGA_MOE_NUM_MAX_TOKENS_PER_RANK=8320",
-        "SGLANG_OPT_DEEPGEMM_MEGA_MOE_USE_FP4_ACTS=1",
-        "SGLANG_OPT_DEEPGEMM_MEGA_MOE_USE_MXF4_KIND=1",
       ],
       flags: [
         "--trust-remote-code",
@@ -642,8 +622,6 @@ sgl-eval run aime25 \\
       verified: true,
       env: [
         "SGLANG_OPT_DEEPGEMM_MEGA_MOE_NUM_MAX_TOKENS_PER_RANK=8320",
-        "SGLANG_OPT_DEEPGEMM_MEGA_MOE_USE_FP4_ACTS=1",
-        "SGLANG_OPT_DEEPGEMM_MEGA_MOE_USE_MXF4_KIND=1",
       ],
       flags: [
         "--trust-remote-code",
@@ -778,8 +756,6 @@ sgl-eval run aime25 \\
       verified: true,
       env: [
         "SGLANG_OPT_DEEPGEMM_MEGA_MOE_NUM_MAX_TOKENS_PER_RANK=8320",
-        "SGLANG_OPT_DEEPGEMM_MEGA_MOE_USE_FP4_ACTS=1",
-        "SGLANG_OPT_DEEPGEMM_MEGA_MOE_USE_MXF4_KIND=1",
       ],
       flags: [
         "--trust-remote-code",
@@ -841,8 +817,6 @@ sgl-eval run aime25 \\
       verified: true,
       env: [
         "SGLANG_OPT_DEEPGEMM_MEGA_MOE_NUM_MAX_TOKENS_PER_RANK=8320",
-        "SGLANG_OPT_DEEPGEMM_MEGA_MOE_USE_FP4_ACTS=1",
-        "SGLANG_OPT_DEEPGEMM_MEGA_MOE_USE_MXF4_KIND=1",
       ],
       flags: [
         "--trust-remote-code",