How to Verify the Actual Gemini Model Being Used (2.5-Pro vs 2.5-Flash)

Question: We currently provide Gemini model access for our clients. We are often asked: “How can we verify that the model you provide is gemin-2.5-pro / gemin-2.5-flash?” The reason is that many customers begin a conversation by asking “Which model are you?”, and the LLM’s self-reported answer often doesn’t match the model actually being invoked. How should I respond to my customers? Is there any prompt that users can use to correctly check the model type?

2 Likes