Update app.py

app.py

@@ -897,7 +897,7 @@ def process_video_request(request_id: str, form_data: Dict, file_paths: Dict, ap
         style_description = form_data.get('style_desc', '')
         target_duration = form_data.get('duration')
         output_filename = form_data.get('output')
-        MODEL_NAME = form_data.get('model', "gemini-2.5-pro-exp-03-25")
+        MODEL_NAME = form_data.get('model', "gemini-2.5-flash-preview-05-20")
         is_preview = form_data.get('is_preview', False)
         # --- ADDED: Get the global mute flag ---
         mute_all_clips_flag = form_data.get('mute_audio', False)