Update app.py

app.py

@@ -886,7 +886,7 @@ def process_video_request(request_id: str, form_data: Dict, file_paths: Dict, ap
     The main logic for processing a video request, run in a background thread.
     Handles file caching and avoids deleting files.
     """
-    global intermediate_files_registry, progress_updates, gemini_file_cache, cache_lock
+    global intermediate_files_registry, progress_updates, gemini_file_cache, cache_lock, MODEL_NAME
 
     uploaded_file_references: Dict[str, File] = {}
     upload_errors: Dict[str, str] = {}
@@ -897,6 +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")
         is_preview = form_data.get('is_preview', False)
         # --- ADDED: Get the global mute flag ---
         mute_all_clips_flag = form_data.get('mute_audio', False)