diff --git a/extensions/github-copilot/index.test.ts b/extensions/github-copilot/index.test.ts
index 5b0deb9953b8..755261b0f74f 100644
--- a/extensions/github-copilot/index.test.ts
+++ b/extensions/github-copilot/index.test.ts
@@ -607,6 +607,26 @@ describe("github-copilot plugin", () => {
     expect(profile?.levels.map((level) => level.id)).toContain("xhigh");
   });
 
+  it("exposes xhigh and max thinking for the bundled Claude Opus 5 model", () => {
+    const provider = registerProviderWithPluginConfig({});
+    const model = expectDefined(
+      manifest.modelCatalog.providers["github-copilot"].models.find(
+        (candidate) => candidate.id === "claude-opus-5",
+      ),
+      "bundled GitHub Copilot Claude Opus 5 model",
+    );
+
+    const profile = provider.resolveThinkingProfile({
+      provider: "github-copilot",
+      modelId: model.id,
+      compat: model.compat,
+    });
+
+    expect(profile?.levels.map((level) => level.id)).toEqual(
+      expect.arrayContaining(["xhigh", "max"]),
+    );
+  });
+
   it("exposes max thinking for catalog-supported Copilot reasoning efforts", () => {
     const provider = registerProviderWithPluginConfig({});
 
diff --git a/extensions/github-copilot/openclaw.plugin.json b/extensions/github-copilot/openclaw.plugin.json
index 25b0591a59e2..1c477f9bd08b 100644
--- a/extensions/github-copilot/openclaw.plugin.json
+++ b/extensions/github-copilot/openclaw.plugin.json
@@ -44,7 +44,11 @@
             "contextWindow": 1000000,
             "maxTokens": 128000,
             "cost": { "input": 5, "output": 25, "cacheRead": 0.5, "cacheWrite": 6.25 },
-            "compat": { "codeMode": "capable" }
+            "compat": {
+              "codeMode": "capable",
+              "supportsReasoningEffort": true,
+              "supportedReasoningEfforts": ["low", "medium", "high", "xhigh", "max"]
+            }
           },
           {
             "id": "claude-sonnet-5",