@renatoromao Hello, thank you for sharing. I am currently using gpt-4o to answer the question you provided. The question is do I need to build an Azure AI search service, or can I just build a gpt-4o model? In addition, after the settings are completed, how do you know which model Copilot Studio uses to answer the actual test? Because the current actual test feels that it still uses the built-in model to answer questions.