diff --git a/docs/help/testing-live.md b/docs/help/testing-live.md
index 7438da2d2ee..9323873113d 100644
--- a/docs/help/testing-live.md
+++ b/docs/help/testing-live.md
@@ -339,7 +339,7 @@ Narrow, explicit allowlists are fastest and least flaky:
   - `OPENCLAW_LIVE_GATEWAY_MODELS="openai/gpt-5.2" pnpm test:live src/gateway/gateway-models.profiles.live.test.ts`
 
 - Tool calling across several providers:
-  - `OPENCLAW_LIVE_GATEWAY_MODELS="openai/gpt-5.2,openai-codex/gpt-5.2,anthropic/claude-opus-4-6,google/gemini-3-flash-preview,deepseek/deepseek-v4-flash,zai/glm-4.7,minimax/MiniMax-M2.7" pnpm test:live src/gateway/gateway-models.profiles.live.test.ts`
+  - `OPENCLAW_LIVE_GATEWAY_MODELS="openai/gpt-5.2,openai-codex/gpt-5.2,anthropic/claude-opus-4-6,google/gemini-3-flash-preview,deepseek/deepseek-v4-flash,zai/glm-5.1,minimax/MiniMax-M2.7" pnpm test:live src/gateway/gateway-models.profiles.live.test.ts`
 
 - Google focus (Gemini API key + Antigravity):
   - Gemini (API key): `OPENCLAW_LIVE_GATEWAY_MODELS="google/gemini-3-flash-preview" pnpm test:live src/gateway/gateway-models.profiles.live.test.ts`
@@ -373,11 +373,11 @@ This is the “common models” run we expect to keep working:
 - Google (Gemini API): `google/gemini-3.1-pro-preview` and `google/gemini-3-flash-preview` (avoid older Gemini 2.x models)
 - Google (Antigravity): `google-antigravity/claude-opus-4-6-thinking` and `google-antigravity/gemini-3-flash`
 - DeepSeek: `deepseek/deepseek-v4-flash` and `deepseek/deepseek-v4-pro`
-- Z.AI (GLM): `zai/glm-4.7`
+- Z.AI (GLM): `zai/glm-5.1`
 - MiniMax: `minimax/MiniMax-M2.7`
 
 Run gateway smoke with tools + image:
-`OPENCLAW_LIVE_GATEWAY_MODELS="openai/gpt-5.2,openai-codex/gpt-5.2,anthropic/claude-opus-4-6,google/gemini-3.1-pro-preview,google/gemini-3-flash-preview,google-antigravity/claude-opus-4-6-thinking,google-antigravity/gemini-3-flash,deepseek/deepseek-v4-flash,zai/glm-4.7,minimax/MiniMax-M2.7" pnpm test:live src/gateway/gateway-models.profiles.live.test.ts`
+`OPENCLAW_LIVE_GATEWAY_MODELS="openai/gpt-5.2,openai-codex/gpt-5.2,anthropic/claude-opus-4-6,google/gemini-3.1-pro-preview,google/gemini-3-flash-preview,google-antigravity/claude-opus-4-6-thinking,google-antigravity/gemini-3-flash,deepseek/deepseek-v4-flash,zai/glm-5.1,minimax/MiniMax-M2.7" pnpm test:live src/gateway/gateway-models.profiles.live.test.ts`
 
 ### Baseline: tool calling (Read + optional Exec)
 
@@ -387,7 +387,7 @@ Pick at least one per provider family:
 - Anthropic: `anthropic/claude-opus-4-6` (or `anthropic/claude-sonnet-4-6`)
 - Google: `google/gemini-3-flash-preview` (or `google/gemini-3.1-pro-preview`)
 - DeepSeek: `deepseek/deepseek-v4-flash`
-- Z.AI (GLM): `zai/glm-4.7`
+- Z.AI (GLM): `zai/glm-5.1`
 - MiniMax: `minimax/MiniMax-M2.7`
 
 Optional additional coverage (nice to have):
diff --git a/src/agents/live-model-filter.ts b/src/agents/live-model-filter.ts
index 5d08e03fcd3..ff724075f16 100644
--- a/src/agents/live-model-filter.ts
+++ b/src/agents/live-model-filter.ts
@@ -23,9 +23,11 @@ const HIGH_SIGNAL_LIVE_MODEL_PRIORITY = [
   "opencode-go/glm-5",
   "openrouter/ai21/jamba-large-1.7",
   "xai/grok-4-1-fast-non-reasoning",
-  "zai/glm-4.7",
+  "zai/glm-5.1",
   "fireworks/accounts/fireworks/models/kimi-k2p6",
   "fireworks/accounts/fireworks/routers/kimi-k2p5-turbo",
+  "fireworks/accounts/fireworks/models/glm-5",
+  "fireworks/accounts/fireworks/models/glm-5p1",
   "minimax-portal/minimax-m2.7",
 ] as const;
 
@@ -104,6 +106,11 @@ function isOldMiniMaxLiveModelRef(id: string): boolean {
   return modelName === "minimax-m2.1" || modelName.startsWith("minimax-m2.1:");
 }
 
+function isOldGlmLiveModelRef(id: string): boolean {
+  const modelName = normalizeLowercaseStringOrEmpty(id).split("/").pop() ?? "";
+  return /^glm-4(?:$|[.\-p])/.test(modelName);
+}
+
 export function isModernModelRef(ref: ModelRef): boolean {
   const provider = normalizeProviderId(ref.provider ?? "");
   const id = normalizeLowercaseStringOrEmpty(ref.id);
@@ -139,6 +146,9 @@ export function isHighSignalLiveModelRef(ref: ModelRef): boolean {
   if (isOldMiniMaxLiveModelRef(id)) {
     return false;
   }
+  if (isOldGlmLiveModelRef(id)) {
+    return false;
+  }
   return isHighSignalClaudeModelId(id);
 }
 
diff --git a/src/agents/model-compat.test.ts b/src/agents/model-compat.test.ts
index 4c08f56117a..da4742f2d13 100644
--- a/src/agents/model-compat.test.ts
+++ b/src/agents/model-compat.test.ts
@@ -520,6 +520,28 @@ describe("isHighSignalLiveModelRef", () => {
     );
   });
 
+  it("drops GLM 4.x models from the default live matrix while keeping GLM 5", () => {
+    providerRuntimeMocks.resolveProviderModernModelRef.mockReturnValue(true);
+
+    expect(isHighSignalLiveModelRef({ provider: "zai", id: "glm-4.7" })).toBe(false);
+    expect(
+      isHighSignalLiveModelRef({ provider: "fireworks", id: "accounts/fireworks/models/glm-4p7" }),
+    ).toBe(false);
+    expect(
+      isHighSignalLiveModelRef({
+        provider: "fireworks",
+        id: "accounts/fireworks/models/glm-4p5-air",
+      }),
+    ).toBe(false);
+    expect(isHighSignalLiveModelRef({ provider: "zai", id: "glm-5.1" })).toBe(true);
+    expect(
+      isHighSignalLiveModelRef({ provider: "fireworks", id: "accounts/fireworks/models/glm-5" }),
+    ).toBe(true);
+    expect(
+      isHighSignalLiveModelRef({ provider: "fireworks", id: "accounts/fireworks/models/glm-5p1" }),
+    ).toBe(true);
+  });
+
   it("keeps DeepSeek V4 models in the default live matrix when the provider marks them modern", () => {
     providerRuntimeMocks.resolveProviderModernModelRef.mockImplementation(({ provider, context }) =>
       provider === "deepseek" && context.modelId.startsWith("deepseek-v4") ? true : undefined,
@@ -579,6 +601,27 @@ describe("selectHighSignalLiveItems", () => {
       { provider: "minimax", id: "minimax-m2.7" },
     ]);
   });
+
+  it("prioritizes Fireworks GLM 5 models over GLM 4.x fallback entries", () => {
+    const items = [
+      { provider: "fireworks", id: "accounts/fireworks/models/glm-4p7" },
+      { provider: "fireworks", id: "accounts/fireworks/models/glm-5" },
+      { provider: "fireworks", id: "accounts/fireworks/models/glm-5p1" },
+      { provider: "fireworks", id: "accounts/fireworks/models/gpt-oss-120b" },
+    ];
+
+    expect(
+      selectHighSignalLiveItems(
+        items,
+        2,
+        (item) => item,
+        (item) => item.provider,
+      ),
+    ).toEqual([
+      { provider: "fireworks", id: "accounts/fireworks/models/glm-5" },
+      { provider: "fireworks", id: "accounts/fireworks/models/glm-5p1" },
+    ]);
+  });
 });
 
 describe("resolveHighSignalLiveModelLimit", () => {
diff --git a/src/agents/zai.live.test.ts b/src/agents/zai.live.test.ts
index 4cc40285868..2ce4765b684 100644
--- a/src/agents/zai.live.test.ts
+++ b/src/agents/zai.live.test.ts
@@ -11,7 +11,7 @@ const LIVE = isLiveTestEnabled(["ZAI_LIVE_TEST"]);
 
 const describeLive = LIVE && ZAI_KEY ? describe : describe.skip;
 
-async function expectModelReturnsAssistantText(modelId: "glm-5" | "glm-4.7") {
+async function expectModelReturnsAssistantText(modelId: "glm-5" | "glm-5.1") {
   const model = getModel("zai", modelId);
   const res = await completeSimple(
     model,
@@ -29,7 +29,7 @@ describeLive("zai live", () => {
     await expectModelReturnsAssistantText("glm-5");
   }, 20000);
 
-  it("glm-4.7 returns assistant text", async () => {
-    await expectModelReturnsAssistantText("glm-4.7");
+  it("glm-5.1 returns assistant text", async () => {
+    await expectModelReturnsAssistantText("glm-5.1");
   }, 20000);
 });
diff --git a/src/gateway/gateway-models.profiles.live.test.ts b/src/gateway/gateway-models.profiles.live.test.ts
index 4f0d4359e8a..7edea9a02d3 100644
--- a/src/gateway/gateway-models.profiles.live.test.ts
+++ b/src/gateway/gateway-models.profiles.live.test.ts
@@ -695,7 +695,7 @@ describe("shouldSkipToolNonceProbeMissForLiveModel", () => {
     { modelKey: "opencode/big-pickle", expected: true },
     { modelKey: "opencode-go/glm-5", expected: true },
     { modelKey: "xai/grok-4.1-fast", expected: true },
-    { modelKey: "zai/glm-4.7", expected: true },
+    { modelKey: "zai/glm-5.1", expected: true },
     { modelKey: "google/gemini-3-flash-preview", expected: true },
     { modelKey: "openai/gpt-5.4", expected: false },
   ])("returns $expected for $modelKey", ({ modelKey, expected }) => {
@@ -2287,7 +2287,7 @@ describeLive("gateway live (dev agent, profile keys)", () => {
     const authStorage = discoverAuthStorage(agentDir);
     const modelRegistry = discoverModels(authStorage, agentDir);
     const anthropic = modelRegistry.find("anthropic", "claude-opus-4-6") as Model<Api> | null;
-    const zai = modelRegistry.find("zai", "glm-4.7") as Model<Api> | null;
+    const zai = modelRegistry.find("zai", "glm-5.1") as Model<Api> | null;
 
     if (!anthropic || !zai) {
       return;
@@ -2393,7 +2393,7 @@ describeLive("gateway live (dev agent, profile keys)", () => {
       await withGatewayLiveProbeTimeout(
         client.request("sessions.patch", {
           key: sessionKey,
-          model: "zai/glm-4.7",
+          model: "zai/glm-5.1",
         }),
         "zai-fallback: sessions-patch-zai",
       );
@@ -2402,7 +2402,7 @@ describeLive("gateway live (dev agent, profile keys)", () => {
         client,
         sessionKey,
         idempotencyKey: `idem-${randomUUID()}-followup`,
-        modelKey: "zai/glm-4.7",
+        modelKey: "zai/glm-5.1",
         message:
           `What are the values of nonceA and nonceB in "${toolProbePath}"? ` +
           `Reply with exactly: ${nonceA} ${nonceB}.`,
@@ -2411,7 +2411,7 @@ describeLive("gateway live (dev agent, profile keys)", () => {
       });
       assertNoReasoningTags({
         text: followupText,
-        model: "zai/glm-4.7",
+        model: "zai/glm-5.1",
         phase: "zai-fallback-followup",
         label: "zai-fallback",
       });