diff --git a/src/ai/providers.ts b/src/ai/providers.ts
index 5ca1772..6ce3d2b 100644
--- a/src/ai/providers.ts
+++ b/src/ai/providers.ts
@@ -13,7 +13,7 @@ const openai = createOpenAI({
   baseURL: process.env.OPENAI_ENDPOINT || 'https://api.openai.com/v1',
 } as CustomOpenAIProviderSettings);
 
-const customModel = process.env.OPENAI_MODEL || 'gpt-4o-mini';
+const customModel = process.env.OPENAI_MODEL || 'o3-mini';
 
 // Models