diff --git a/lib/ai/models.ts b/lib/ai/models.ts
index 7837cf6f63..4db7088ad5 100644
--- a/lib/ai/models.ts
+++ b/lib/ai/models.ts
@@ -1,5 +1,5 @@
 // Curated list of top models from Vercel AI Gateway
-export const DEFAULT_CHAT_MODEL = "google/gemini-2.5-flash-lite";
+export const DEFAULT_CHAT_MODEL ="openai/gpt-4o";
 
 export type ChatModel = {
   id: string;