Update app.py

app.py

@@ -1674,7 +1674,7 @@ def index():
     text = ""
     token_data = None
     error_message = ""
-    selected_model = request.args.get('model', request.form.get('model', 'llama4'))
+    selected_model = request.args.get('model', request.form.get('model', 'Qwen3'))
     custom_model = request.args.get('custom_model', request.form.get('custom_model', ''))
     model_type = request.args.get('model_type', request.form.get('model_type', 'predefined'))