feat: Add xAI provider, upgrade Gemini SDK

src/constants.ts

@@ -9,10 +9,12 @@ export const PGLITE_DB_PATH = '.smtcmp_vector_db.tar.gz'
 
 // Default model ids
 export const DEFAULT_CHAT_MODEL_ID = 'claude-sonnet-4.5'
+// gpt-4.1-mini is preferred over gpt-5-mini because gpt-5 models do not support
+// predicted outputs, making them significantly slower for apply tasks.
 export const DEFAULT_APPLY_MODEL_ID = 'gpt-4.1-mini'
 
 // Recommended model ids
-export const RECOMMENDED_MODELS_FOR_CHAT = ['claude-sonnet-4.5', 'gpt-4.1']
+export const RECOMMENDED_MODELS_FOR_CHAT = ['claude-sonnet-4.5', 'gpt-5.1']
 export const RECOMMENDED_MODELS_FOR_APPLY = ['gpt-4.1-mini']
 export const RECOMMENDED_MODELS_FOR_EMBEDDING = [
   'openai/text-embedding-3-small',
@@ -245,8 +247,8 @@ export const DEFAULT_CHAT_MODELS: readonly ChatModel[] = [
   {
     providerType: 'openai',
     providerId: PROVIDER_TYPES_INFO.openai.defaultProviderId,
-    id: 'gpt-5',
-    model: 'gpt-5',
+    id: 'gpt-5.1',
+    model: 'gpt-5.1',
   },
   {
     providerType: 'openai',
@@ -260,24 +262,6 @@ export const DEFAULT_CHAT_MODELS: readonly ChatModel[] = [
     id: 'gpt-5-nano',
     model: 'gpt-5-nano',
   },
-  {
-    providerType: 'openai',
-    providerId: PROVIDER_TYPES_INFO.openai.defaultProviderId,
-    id: 'gpt-4.1',
-    model: 'gpt-4.1',
-  },
-  {
-    providerType: 'openai',
-    providerId: PROVIDER_TYPES_INFO.openai.defaultProviderId,
-    id: 'gpt-4.1-mini',
-    model: 'gpt-4.1-mini',
-  },
-  {
-    providerType: 'openai',
-    providerId: PROVIDER_TYPES_INFO.openai.defaultProviderId,
-    id: 'gpt-4.1-nano',
-    model: 'gpt-4.1-nano',
-  },
   {
     providerType: 'openai',
     providerId: PROVIDER_TYPES_INFO.openai.defaultProviderId,
@@ -462,6 +446,7 @@ type ModelPricing = {
 }
 
 export const OPENAI_PRICES: Record<string, ModelPricing> = {
+  'gpt-5.1': { input: 1.25, output: 10 },
   'gpt-5': { input: 1.25, output: 10 },
   'gpt-5-mini': { input: 0.25, output: 2 },
   'gpt-5-nano': { input: 0.05, output: 0.4 },

src/settings/schema/migrations/12_to_13.test.ts

@@ -0,0 +1,196 @@
+import { DEFAULT_CHAT_MODELS_V13, migrateFrom12To13 } from './12_to_13'
+
+describe('Migration from v12 to v13', () => {
+  it('should increment version to 13', () => {
+    const oldSettings = {
+      version: 12,
+    }
+    const result = migrateFrom12To13(oldSettings)
+    expect(result.version).toBe(13)
+  })
+
+  it('should merge existing chat models with new default models', () => {
+    const oldSettings = {
+      version: 12,
+      chatModels: [
+        {
+          id: 'gpt-4o',
+          providerType: 'openai',
+          providerId: 'openai',
+          model: 'gpt-4o',
+          enable: false,
+        },
+        {
+          id: 'custom-model',
+          providerType: 'custom',
+          providerId: 'custom',
+          model: 'custom-model',
+        },
+      ],
+    }
+    const result = migrateFrom12To13(oldSettings)
+
+    expect(result.chatModels).toEqual([
+      ...DEFAULT_CHAT_MODELS_V13.map((model) =>
+        model.id === 'gpt-4o'
+          ? {
+              ...model,
+              enable: false,
+            }
+          : model,
+      ),
+      {
+        id: 'custom-model',
+        providerType: 'custom',
+        providerId: 'custom',
+        model: 'custom-model',
+      },
+    ])
+  })
+
+  it('should add new GPT-5.1 model', () => {
+    const oldSettings = {
+      version: 12,
+      chatModels: [
+        {
+          id: 'gpt-4o',
+          providerType: 'openai',
+          providerId: 'openai',
+          model: 'gpt-4o',
+        },
+      ],
+    }
+    const result = migrateFrom12To13(oldSettings)
+
+    const chatModels = result.chatModels as { id: string }[]
+    const gpt51 = chatModels.find((m) => m.id === 'gpt-5.1')
+
+    expect(gpt51).toBeDefined()
+    expect(gpt51).toEqual({
+      id: 'gpt-5.1',
+      providerType: 'openai',
+      providerId: 'openai',
+      model: 'gpt-5.1',
+    })
+  })
+
+  it('should preserve gpt-5 as custom model when migrating', () => {
+    const oldSettings = {
+      version: 12,
+      chatModels: [
+        {
+          id: 'gpt-5',
+          providerType: 'openai',
+          providerId: 'openai',
+          model: 'gpt-5',
+          enable: true,
+        },
+        {
+          id: 'gpt-4o',
+          providerType: 'openai',
+          providerId: 'openai',
+          model: 'gpt-4o',
+        },
+      ],
+    }
+    const result = migrateFrom12To13(oldSettings)
+
+    const chatModels = result.chatModels as { id: string }[]
+    const gpt5 = chatModels.find((m) => m.id === 'gpt-5')
+    const gpt51 = chatModels.find((m) => m.id === 'gpt-5.1')
+
+    // gpt-5 should be preserved as custom model
+    expect(gpt5).toBeDefined()
+    expect(gpt5).toEqual({
+      id: 'gpt-5',
+      providerType: 'openai',
+      providerId: 'openai',
+      model: 'gpt-5',
+      enable: true,
+    })
+
+    // gpt-5.1 should be added as new default
+    expect(gpt51).toBeDefined()
+    expect(gpt51).toEqual({
+      id: 'gpt-5.1',
+      providerType: 'openai',
+      providerId: 'openai',
+      model: 'gpt-5.1',
+    })
+  })
+
+  it('should preserve gpt-4.1 models as custom models when migrating', () => {
+    const oldSettings = {
+      version: 12,
+      chatModels: [
+        {
+          id: 'gpt-4.1',
+          providerType: 'openai',
+          providerId: 'openai',
+          model: 'gpt-4.1',
+          enable: true,
+        },
+        {
+          id: 'gpt-4.1-mini',
+          providerType: 'openai',
+          providerId: 'openai',
+          model: 'gpt-4.1-mini',
+        },
+        {
+          id: 'gpt-4.1-nano',
+          providerType: 'openai',
+          providerId: 'openai',
+          model: 'gpt-4.1-nano',
+        },
+        {
+          id: 'gpt-4o',
+          providerType: 'openai',
+          providerId: 'openai',
+          model: 'gpt-4o',
+        },
+      ],
+    }
+    const result = migrateFrom12To13(oldSettings)
+
+    const chatModels = result.chatModels as { id: string }[]
+    const gpt41 = chatModels.find((m) => m.id === 'gpt-4.1')
+    const gpt41Mini = chatModels.find((m) => m.id === 'gpt-4.1-mini')
+    const gpt41Nano = chatModels.find((m) => m.id === 'gpt-4.1-nano')
+    const gpt51 = chatModels.find((m) => m.id === 'gpt-5.1')
+
+    // gpt-4.1 models should be preserved as custom models
+    expect(gpt41).toBeDefined()
+    expect(gpt41).toEqual({
+      id: 'gpt-4.1',
+      providerType: 'openai',
+      providerId: 'openai',
+      model: 'gpt-4.1',
+      enable: true,
+    })
+
+    expect(gpt41Mini).toBeDefined()
+    expect(gpt41Mini).toEqual({
+      id: 'gpt-4.1-mini',
+      providerType: 'openai',
+      providerId: 'openai',
+      model: 'gpt-4.1-mini',
+    })
+
+    expect(gpt41Nano).toBeDefined()
+    expect(gpt41Nano).toEqual({
+      id: 'gpt-4.1-nano',
+      providerType: 'openai',
+      providerId: 'openai',
+      model: 'gpt-4.1-nano',
+    })
+
+    // gpt-5.1 should be added as new default
+    expect(gpt51).toBeDefined()
+    expect(gpt51).toEqual({
+      id: 'gpt-5.1',
+      providerType: 'openai',
+      providerId: 'openai',
+      model: 'gpt-5.1',
+    })
+  })
+})