Update app.py

app.py

@@ -177,10 +177,8 @@ BROWSER_CONFIG = {
 
 os.makedirs(f"./{BROWSER_CONFIG['downloads_folder']}", exist_ok=True)
 
-model = LiteLLMModel(
-    "gpt-4o",
+model = HfApiModel(
     custom_role_conversions=custom_role_conversions,
-    api_key=os.getenv("OPENAI_API_KEY")
 )
 
 text_limit = 20000