diff --git a/packages/core/src/providers/__tests__/presets/alibaba-token-plan.test.ts b/packages/core/src/providers/__tests__/presets/alibaba-token-plan.test.ts
index 6472f5b03d7..298f504460e 100644
--- a/packages/core/src/providers/__tests__/presets/alibaba-token-plan.test.ts
+++ b/packages/core/src/providers/__tests__/presets/alibaba-token-plan.test.ts
@@ -52,8 +52,22 @@ describe('token plan provider', () => {
     ).toEqual({
       extra_body: { enable_thinking: true },
       contextWindowSize: 1000000,
-      modalities: { image: true, video: true },
     });
+    expect(
+      template.find((model) => model.id === 'kimi-k2.6')?.generationConfig,
+    ).toEqual({
+      extra_body: { enable_thinking: true },
+      contextWindowSize: 262144,
+    });
+    // Plus/2.5 variants are genuinely multimodal and stay that way.
+    expect(
+      template.find((model) => model.id === 'qwen3.6-plus')?.generationConfig
+        ?.modalities,
+    ).toEqual({ image: true, video: true });
+    expect(
+      template.find((model) => model.id === 'kimi-k2.5')?.generationConfig
+        ?.modalities,
+    ).toEqual({ image: true, video: true });
     expect(plan.providerId).toBe('token-plan');
     expect(plan.authType).toBe(AuthType.USE_OPENAI);
     expect(plan.env).toEqual({ [TOKEN_PLAN_ENV_KEY]: 'sk-token' });
diff --git a/packages/core/src/providers/__tests__/presets/idealab.test.ts b/packages/core/src/providers/__tests__/presets/idealab.test.ts
index 5151a1b9b45..6dae252198e 100644
--- a/packages/core/src/providers/__tests__/presets/idealab.test.ts
+++ b/packages/core/src/providers/__tests__/presets/idealab.test.ts
@@ -63,6 +63,20 @@ describe('idealabProvider', () => {
     });
   });
 
+  it('does not mark kimi-k2.6 as multimodal', () => {
+    const plan = buildInstallPlan(idealabProvider, {
+      baseUrl: 'https://idealab.alibaba-inc.com/api/openai/v1',
+      apiKey: 'sk-idealab',
+      modelIds: ['bailian/kimi-k2.6'],
+    });
+
+    const models = plan.modelProviders?.[0]?.models;
+    expect(models?.[0]?.generationConfig).toEqual({
+      extra_body: { enable_thinking: true },
+      contextWindowSize: 262144,
+    });
+  });
+
   it('falls back gracefully for unknown model IDs', () => {
     const plan = buildInstallPlan(idealabProvider, {
       baseUrl: 'https://idealab.alibaba-inc.com/api/openai/v1',
diff --git a/packages/core/src/providers/presets/alibaba-token-plan.ts b/packages/core/src/providers/presets/alibaba-token-plan.ts
index 4f798634af8..82b47e6bdcf 100644
--- a/packages/core/src/providers/presets/alibaba-token-plan.ts
+++ b/packages/core/src/providers/presets/alibaba-token-plan.ts
@@ -27,7 +27,6 @@ const TOKEN_PLAN_MODELS: ModelSpec[] = [
     id: 'qwen3.6-flash',
     contextWindowSize: 1000000,
     enableThinking: true,
-    modalities: { image: true, video: true },
   },
   { id: 'deepseek-v4-pro', contextWindowSize: 1000000 },
   { id: 'deepseek-v4-flash', contextWindowSize: 1000000 },
@@ -36,7 +35,6 @@ const TOKEN_PLAN_MODELS: ModelSpec[] = [
     id: 'kimi-k2.6',
     contextWindowSize: 262144,
     enableThinking: true,
-    modalities: { image: true, video: true },
   },
   {
     id: 'kimi-k2.5',
diff --git a/packages/core/src/providers/presets/idealab.ts b/packages/core/src/providers/presets/idealab.ts
index aeabd1ab6a5..df310f6a97b 100644
--- a/packages/core/src/providers/presets/idealab.ts
+++ b/packages/core/src/providers/presets/idealab.ts
@@ -36,7 +36,6 @@ export const idealabProvider: ProviderConfig = {
       id: 'bailian/kimi-k2.6',
       contextWindowSize: 262144,
       enableThinking: true,
-      modalities: { image: true, video: true },
     },
   ],
   modelsEditable: true,