Update app.py

app.py

@@ -146,8 +146,8 @@ def upload_file_to_genai_api(file_data, filename, mime_type):
 def call_gemini_with_fallback(contents, task_id):
     """Appelle Gemini 2.5 Pro en premier, puis 2.5 Flash en cas d'échec."""
     models_to_try = [
-        {"name": "gemini-2.5-pro", "display_name": " 2.5 Pro"},
-        {"name": "gemini-2.5-flash", "display_name": " 2.5 Flash"}
+        {"name": "gemini-3-flash-preview", "display_name": " 2.5 Pro"},
+        {"name": "gemini-3-flash-preview", "display_name": " 2.5 Flash"}
     ]
     
     last_error = None
@@ -160,7 +160,7 @@ def call_gemini_with_fallback(contents, task_id):
             logger.info(f"[Task {task_id}] Tentative {i+1}/2: Appel de {model_display}...")
             
             # Mettre à jour le statut pour indiquer quel modèle est en cours d'utilisation
-            if model_name == "gemini-2.5-pro":
+            if model_name == "gemini-3-flash-preview":
                 task_results[task_id]['status'] = 'generating_latex_pro'
                 task_results[task_id]['current_model'] = 'Gemini 2.5 Pro'
             else: