diff --git a/services/aiService.ts b/services/aiService.ts
index 8629561..0e4eef5 100644
--- a/services/aiService.ts
+++ b/services/aiService.ts
@@ -423,8 +423,7 @@ export const analyzeWithOpenRouter = async (file: File, apiKey: string, model: s
           ]
         }
       ],
-      temperature: 0.1,
-      response_format: { type: 'json_object' }
+      temperature: 0.1
     })
   });