diff --git a/packages/ai/src/llm/sonnet-4.ts b/packages/ai/src/llm/sonnet-4.ts
index bef9bc7b5..680cf2f82 100644
--- a/packages/ai/src/llm/sonnet-4.ts
+++ b/packages/ai/src/llm/sonnet-4.ts
@@ -1,4 +1,4 @@
 import { gatewayModel } from './providers/gateway';
 
 // Export Sonnet 4 model using AI Gateway
-export const Sonnet4 = gatewayModel('anthropic/claude-4-sonnet-20250514');
+export const Sonnet4 = gatewayModel('anthropic/claude-sonnet-4.5');