Update AI model references to latest versions

Replace Claude Sonnet 4.6 with Sonnet 5 as default model, add Claude Fable 5, update OpenAI models to include versioned releases (GPT-5.5 Pro, dated variants), and update all references across enums, settings, tests, and documentation.

Enums/ApiProvider.ts

@@ -66,7 +66,8 @@ export enum AIProvider {
 
 export enum AIProviderModel {
     // Claude models
-    ClaudeSonnet_4_6 = "claude-sonnet-4-6",
+    ClaudeFable_5 = "claude-fable-5",
+    ClaudeSonnet_5 = "claude-sonnet-5",
     ClaudeOpus_4_8 = "claude-opus-4-8",
     ClaudeHaiku_4_5 = "claude-haiku-4-5-20251001",
 
@@ -77,9 +78,10 @@ export enum AIProviderModel {
     GeminiPro_3_1_Preview = "gemini-3.1-pro-preview",
 
     // OpenAI models
-    GPT_5_5 = "gpt-5.5",
-    GPT_5_4_Mini = "gpt-5.4-mini",
-    GPT_5_4_Nano = "gpt-5.4-nano",
+    GPT_5_5_Pro = "gpt-5.5-pro-2026-04-23",
+    GPT_5_5 = "gpt-5.5-2026-04-23",
+    GPT_5_4_Mini = "gpt-5.4-mini-2026-03-17",
+    GPT_5_4_Nano = "gpt-5.4-nano-2026-03-17",
 
     // Mistral models
     MistralMedium = "mistral-medium-3-5",
@@ -124,7 +126,7 @@ export const DEFAULT_QUICK_MODEL_BY_PROVIDER: Record<AIProvider, AIProviderModel
 }
 
 export const DEFAULT_MODEL_BY_PROVIDER: Record<AIProvider, AIProviderModel> = {
-    [AIProvider.Claude]:  AIProviderModel.ClaudeSonnet_4_6,
+    [AIProvider.Claude]:  AIProviderModel.ClaudeSonnet_5,
     [AIProvider.Gemini]:  AIProviderModel.GeminiFlash_3_5_Flash,
     [AIProvider.OpenAI]:  AIProviderModel.GPT_5_5,
     [AIProvider.Mistral]: AIProviderModel.MistralMedium,

Enums/Copy.ts

@@ -6,7 +6,8 @@ export enum Copy {
     NoUserInstruction = "No custom instructions",
 
     // Model Display Names
-    ClaudeSonnet_4_6 = "Claude Sonnet 4.6",
+    ClaudeFable_5 = "Claude Fable 5",
+    ClaudeSonnet_5 = "Claude Sonnet 5",
     ClaudeOpus_4_8 = "Claude Opus 4.8",
     ClaudeHaiku_4_5 = "Claude Haiku 4.5",
 
@@ -15,6 +16,7 @@ export enum Copy {
     GeminiFlash_3_5_Flash = "Gemini 3.5 Flash",
     GeminiPro_3_1_Preview = "Gemini 3.1 Pro Preview",
 
+    GPT_5_5_Pro = "GPT-5.5 Pro",
     GPT_5_5 = "GPT-5.5",
     GPT_5_4_Mini = "GPT-5.4 Mini",
     GPT_5_4_Nano = "GPT-5.4 Nano",

README.md

@@ -70,38 +70,6 @@
 
 ## Usage
 
-### Switching Between Models
-
-The plugin supports multiple AI models:
-
-**Claude (Anthropic)**
-
-- Claude Sonnet 4.6 ⚡ (Recommended)
-- Claude Sonnet 4.5, 4
-- Claude Opus 4.6, 4.5, 4.1, 4
-- Claude Haiku 4.5
-
-**Gemini (Google)**
-
-- Gemini 3.1 Pro Preview, 3 Pro Preview, 3 Flash Preview
-- Gemini 2.5 Flash, Pro
-- Gemini 2.5 Flash Lite
-
-**OpenAI**
-
-- GPT-5.2 (Instant, Thinking, Pro)
-- GPT-5.1, GPT-5 (Mini, Nano)
-
-**Mistral**
-
-- Mistral Large
-- Mistral Medium
-- Mistral Small
-
-**Local**
-
-- Any model served by an OpenAI-compatible local server (LM Studio, Ollama, vLLM, etc.) - enter the model name yourself, no preset list
-
 Switch models anytime in the settings without losing your conversation context.
 
 ### Chat Modes
@@ -347,7 +315,7 @@ See `EXAMPLE_INSTRUCTIONS.md` in your vault for a template.
 **Planning Model**
 
 - Select a separate model for the planning agent (used in Planning Mode)
-- Default: Claude Sonnet 4.6
+- Defaults to your provider's recommended model
 - Allows cost optimization by using a more capable model for planning and a faster/cheaper model for execution
 - The planning model dropdown updates to match your selected provider
 

Services/SettingsService.ts

@@ -21,7 +21,7 @@ export const DEFAULT_SETTINGS: IVaultkeeperAISettings = {
     userInstruction: "",
 
     provider: AIProvider.Local,
-    model: AIProviderModel.ClaudeSonnet_4_6,
+    model: AIProviderModel.ClaudeSonnet_5,
     planningModel: AIProviderModel.ClaudeOpus_4_8,
     quickActionModel: AIProviderModel.ClaudeHaiku_4_5,
     

Views/VaultkeeperAISettingTab.ts

@@ -487,16 +487,18 @@ export class VaultkeeperAISettingTab extends PluginSettingTab {
 		switch (providerFilter) {
 			case AIProvider.Claude:
 				dropdown.addOptions({
-					[AIProviderModel.ClaudeSonnet_4_6]: Copy.ClaudeSonnet_4_6,
+					[AIProviderModel.ClaudeFable_5]: Copy.ClaudeFable_5,
+					[AIProviderModel.ClaudeSonnet_5]: Copy.ClaudeSonnet_5,
 					[AIProviderModel.ClaudeOpus_4_8]: Copy.ClaudeOpus_4_8,
-					[AIProviderModel.ClaudeHaiku_4_5]: Copy.ClaudeHaiku_4_5,
+					[AIProviderModel.ClaudeHaiku_4_5]: Copy.ClaudeHaiku_4_5
 				});
 				break;
 			case AIProvider.OpenAI:
 				dropdown.addOptions({
+					[AIProviderModel.GPT_5_5_Pro]: Copy.GPT_5_5_Pro,
 					[AIProviderModel.GPT_5_5]: Copy.GPT_5_5,
 					[AIProviderModel.GPT_5_4_Mini]: Copy.GPT_5_4_Mini,
-					[AIProviderModel.GPT_5_4_Nano]: Copy.GPT_5_4_Nano,
+					[AIProviderModel.GPT_5_4_Nano]: Copy.GPT_5_4_Nano
 				});
 				break;
 			case AIProvider.Gemini:
@@ -504,13 +506,13 @@ export class VaultkeeperAISettingTab extends PluginSettingTab {
 					[AIProviderModel.GeminiFlash_3_1_Lite]: Copy.GeminiFlash_3_1_Lite,
 					[AIProviderModel.GeminiFlash_3_Flash]: Copy.GeminiFlash_3_Flash,
 					[AIProviderModel.GeminiFlash_3_5_Flash]: Copy.GeminiFlash_3_5_Flash,
-					[AIProviderModel.GeminiPro_3_1_Preview]: Copy.GeminiPro_3_1_Preview,
+					[AIProviderModel.GeminiPro_3_1_Preview]: Copy.GeminiPro_3_1_Preview
 				});
 				break;
 			case AIProvider.Mistral:
 				dropdown.addOptions({
 					[AIProviderModel.MistralMedium]: Copy.MistralMedium,
-					[AIProviderModel.MistralSmall]: Copy.MistralSmall,
+					[AIProviderModel.MistralSmall]: Copy.MistralSmall
 				});
 				break;
 			case AIProvider.Local:

__tests__/AIClasses/ClaudeConversationNamingAgent.test.ts

@@ -19,7 +19,7 @@ describe('ClaudeConversationNamingAgent', () => {
         // Mock SettingsService
         mockSettingsService = {
             settings: {
-                model: AIProviderModel.ClaudeSonnet_4_6,
+                model: AIProviderModel.ClaudeSonnet_5,
                 apiKeys: {
                     claude: 'test-claude-key',
                     openai: 'test-openai-key',

__tests__/Services/AIControllerService.test.ts

@@ -36,6 +36,7 @@ describe('AIControllerService - Integration Tests', () => {
 		onPlanningStarted: vi.fn(),
 		onPlanningFinished: vi.fn(),
 		onUserQuestion: vi.fn(),
+		onPlanApprovalRequest: vi.fn(),
 		onPlanUpdate: vi.fn(),
 		onPlanStepUpdate: vi.fn(),
 		onPlanReset: vi.fn(),

__tests__/Services/ExecutionAgent.test.ts

@@ -33,6 +33,7 @@ describe('ExecutionAgent - Unit Tests', () => {
 		onPlanningStarted: vi.fn(),
 		onPlanningFinished: vi.fn(),
 		onUserQuestion: vi.fn().mockResolvedValue('User answer'),
+		onPlanApprovalRequest: vi.fn(),
 		onPlanUpdate: vi.fn(),
 		onPlanStepUpdate: vi.fn(),
 		onPlanReset: vi.fn(),

__tests__/Services/MultiAgentIntegration.test.ts

@@ -42,6 +42,7 @@ describe('Multi-Agent Integration Tests', () => {
 		onPlanningStarted: vi.fn(),
 		onPlanningFinished: vi.fn(),
 		onUserQuestion: vi.fn().mockResolvedValue('User answer'),
+		onPlanApprovalRequest: vi.fn(),
 		onPlanUpdate: vi.fn(),
 		onPlanStepUpdate: vi.fn(),
 		onPlanReset: vi.fn(),

__tests__/Services/PlanningAgent.test.ts

@@ -35,6 +35,7 @@ describe('PlanningAgent - Unit Tests', () => {
 		onPlanningStarted: vi.fn(),
 		onPlanningFinished: vi.fn(),
 		onUserQuestion: vi.fn().mockResolvedValue('User answer'),
+		onPlanApprovalRequest: vi.fn(),
 		onPlanUpdate: vi.fn(),
 		onPlanStepUpdate: vi.fn(),
 		onPlanReset: vi.fn(),

__tests__/Services/SettingsService.test.ts

@@ -27,7 +27,7 @@ describe('SettingsService', () => {
             settingsService = new SettingsService({});
 
             expect(settingsService.settings.firstTimeStart).toBe(true);
-            expect(settingsService.settings.model).toBe(AIProviderModel.ClaudeSonnet_4_6);
+            expect(settingsService.settings.model).toBe(AIProviderModel.ClaudeSonnet_5);
             expect(settingsService.settings.apiKeys).toEqual({
                 claude: '',
                 openai: '',
@@ -172,7 +172,7 @@ describe('SettingsService', () => {
         beforeEach(() => {
             const loadedSettings = makeTestSettings({
                 provider: AIProvider.Claude,
-                model: AIProviderModel.ClaudeSonnet_4_6,
+                model: AIProviderModel.ClaudeSonnet_5,
                 apiKeys: {
                     claude: 'claude-api-key',
                     openai: 'openai-api-key',
@@ -220,7 +220,7 @@ describe('SettingsService', () => {
         it('should return Claude key when current model is Claude', () => {
             const loadedSettings = makeTestSettings({
                 provider: AIProvider.Claude,
-                model: AIProviderModel.ClaudeSonnet_4_6,
+                model: AIProviderModel.ClaudeSonnet_5,
                 apiKeys: {
                     claude: 'claude-key',
                     openai: 'openai-key',
@@ -336,7 +336,7 @@ describe('SettingsService', () => {
         beforeEach(() => {
             const loadedSettings = makeTestSettings({
                 provider: AIProvider.Claude,
-                model: AIProviderModel.ClaudeSonnet_4_6
+                model: AIProviderModel.ClaudeSonnet_5
             });
             settingsService = new SettingsService(loadedSettings);
         });
@@ -396,7 +396,7 @@ describe('SettingsService', () => {
         beforeEach(() => {
             const loadedSettings = makeTestSettings({
                 provider: AIProvider.Claude,
-                model: AIProviderModel.ClaudeSonnet_4_6,
+                model: AIProviderModel.ClaudeSonnet_5,
                 apiKeys: {
                     claude: 'test-key',
                     openai: '',
@@ -441,8 +441,8 @@ describe('SettingsService', () => {
     describe('Provider Detection from Model Names', () => {
         it('should correctly identify Claude models', () => {
             const claudeModels = [
-                AIProviderModel.ClaudeSonnet_4_6,
-                AIProviderModel.ClaudeSonnet_4_6,
+                AIProviderModel.ClaudeSonnet_5,
+                AIProviderModel.ClaudeSonnet_5,
                 AIProviderModel.ClaudeOpus_4_8,
                 AIProviderModel.ClaudeHaiku_4_5
             ];
@@ -526,7 +526,7 @@ describe('SettingsService', () => {
     describe('Settings Immutability and Reference', () => {
         it('should maintain reference to settings object', () => {
             settingsService = new SettingsService({
-                model: AIProviderModel.ClaudeSonnet_4_6,
+                model: AIProviderModel.ClaudeSonnet_5,
                 apiKeys: { claude: 'key', openai: '', gemini: '', mistral: '', local: '' }
             });
 
@@ -539,7 +539,7 @@ describe('SettingsService', () => {
 
         it('should allow modification of settings properties via updateSettings', async () => {
             settingsService = new SettingsService({
-                model: AIProviderModel.ClaudeSonnet_4_6,
+                model: AIProviderModel.ClaudeSonnet_5,
                 apiKeys: { claude: '', openai: '', gemini: '', mistral: '', local: '' },
                 exclusions: []
             });