diff --git a/apps/emdash-desktop/src/shared/core/conversations/conversation-config.test.ts b/apps/emdash-desktop/src/shared/core/conversations/conversation-config.test.ts
index 98200864c0..b488a3e24c 100644
--- a/apps/emdash-desktop/src/shared/core/conversations/conversation-config.test.ts
+++ b/apps/emdash-desktop/src/shared/core/conversations/conversation-config.test.ts
@@ -7,7 +7,7 @@ describe('conversation-config v1 schema', () => {
       version: '1',
       type: 'pty',
       autoApprove: true,
-      model: 'claude-sonnet-4-5',
+      model: 'claude-sonnet-5',
     });
     expect(result.status).toBe('ok');
     if (result.status === 'ok') {
@@ -15,7 +15,7 @@ describe('conversation-config v1 schema', () => {
         version: '1',
         type: 'pty',
         autoApprove: true,
-        model: 'claude-sonnet-4-5',
+        model: 'claude-sonnet-5',
       });
     }
   });
@@ -24,18 +24,18 @@ describe('conversation-config v1 schema', () => {
     const result = conversationConfig.safeParse({
       version: '1',
       type: 'acp',
-      model: 'claude-opus-4-5',
+      model: 'claude-opus-4-8',
     });
     expect(result.status).toBe('ok');
     if (result.status === 'ok') {
-      expect(result.data).toEqual({ version: '1', type: 'acp', model: 'claude-opus-4-5' });
+      expect(result.data).toEqual({ version: '1', type: 'acp', model: 'claude-opus-4-8' });
     }
   });
 
   it('upgrades a v0 legacy row (no version field) to v1 pty', () => {
     const result = conversationConfig.safeParse({
       autoApprove: true,
-      model: 'claude-sonnet-4-5',
+      model: 'claude-sonnet-5',
     });
     expect(result.status).toBe('ok');
     if (result.status === 'ok') {
@@ -43,7 +43,7 @@ describe('conversation-config v1 schema', () => {
         version: '1',
         type: 'pty',
         autoApprove: true,
-        model: 'claude-sonnet-4-5',
+        model: 'claude-sonnet-5',
       });
     }
   });
@@ -97,10 +97,10 @@ describe('conversation-config v1 schema', () => {
   });
 
   it('parses and round-trips model field on v0 input (upgraded to v1)', () => {
-    const result = conversationConfig.safeParse({ model: 'claude-sonnet-4-5' });
+    const result = conversationConfig.safeParse({ model: 'claude-sonnet-5' });
     expect(result.status).toBe('ok');
     if (result.status === 'ok') {
-      expect(result.data.model).toBe('claude-sonnet-4-5');
+      expect(result.data.model).toBe('claude-sonnet-5');
     }
   });
 });
diff --git a/apps/emdash-desktop/src/shared/core/conversations/conversation-config.ts b/apps/emdash-desktop/src/shared/core/conversations/conversation-config.ts
index 79a991e99c..27fd9b6c59 100644
--- a/apps/emdash-desktop/src/shared/core/conversations/conversation-config.ts
+++ b/apps/emdash-desktop/src/shared/core/conversations/conversation-config.ts
@@ -6,7 +6,7 @@ const conversationConfigV0Schema = z.object({
   /** @deprecated Moved to conversations.session_id column; stripped on upgrade to v1. */
   providerSessionId: z.string().optional(),
   initialPrompt: z.string().optional(),
-  /** Model to pass to the agent CLI (e.g. 'claude-sonnet-4-5', 'o4-mini'). Empty string or absent = CLI default. */
+  /** Model to pass to the agent CLI (e.g. 'claude-sonnet-5', 'o4-mini'). Empty string or absent = CLI default. */
   model: z.string().optional(),
 });
 
diff --git a/packages/plugins/src/agents/impl/claude/index.ts b/packages/plugins/src/agents/impl/claude/index.ts
index 8a842ffebb..99635ea255 100644
--- a/packages/plugins/src/agents/impl/claude/index.ts
+++ b/packages/plugins/src/agents/impl/claude/index.ts
@@ -35,12 +35,16 @@ export const plugin = definePlugin(
     models: {
       kind: 'selectable',
       modelOptions: {
-        'claude-opus-4-5': {
-          name: 'Claude Opus 4.5',
+        'claude-fable-5': {
+          name: 'Claude Fable 5',
+          modelFeatures: { intelligence: 4, speed: 3 },
+        },
+        'claude-opus-4-8': {
+          name: 'Claude Opus 4.8',
           modelFeatures: { intelligence: 5, speed: 2 },
         },
-        'claude-sonnet-4-5': {
-          name: 'Claude Sonnet 4.5',
+        'claude-sonnet-5': {
+          name: 'Claude Sonnet 5',
           modelFeatures: { intelligence: 4, speed: 4 },
         },
         'claude-haiku-4-5': {