diff --git a/src/lib/models.ts b/src/lib/models.ts
index 4a42944609..dad2f41429 100644
--- a/src/lib/models.ts
+++ b/src/lib/models.ts
@@ -13,7 +13,7 @@ import { recommendedModels } from '@/lib/providers/recommended-models';
 import { kat_coder_pro_free_model } from '@/lib/providers/streamlake';
 import { zai_glm47_free_model } from '@/lib/providers/zai';
 
-export const DEFAULT_MODEL_CHOICES = ['anthropic/claude-sonnet-4.5', 'anthropic/claude-opus-4.5'];
+export const DEFAULT_MODEL_CHOICES = ['anthropic/claude-sonnet-4.5', 'anthropic/claude-opus-4.6'];
 
 export const PRIMARY_DEFAULT_MODEL = DEFAULT_MODEL_CHOICES[0];
 
diff --git a/src/lib/providers/recommended-models.ts b/src/lib/providers/recommended-models.ts
index d057b8f09a..cd773a7e77 100644
--- a/src/lib/providers/recommended-models.ts
+++ b/src/lib/providers/recommended-models.ts
@@ -44,7 +44,7 @@ export const recommendedModels = [
     random_vercel_routing: true,
   },
   {
-    public_id: 'anthropic/claude-opus-4.5',
+    public_id: 'anthropic/claude-opus-4.6',
     tool_choice_required: false,
     random_vercel_routing: false, // not yet allowed pending strict tool use support
   },