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?
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Last time I dug into this I realized that Google doesn’t provides metadata for actually receiving information about which model was used.
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If you have “customers” or “clients”, do you really want the AI advertising someone else’s services in chats by name?
You will likely want to use a system message that gives the AI a strong identity, name, and your company that it can answer about instead.
Hi @hong_jackey,
Thank you for the query.
We have customers that built consumer based apps who - based on their use-case, either switch default models based on their internal performance metrics ran across various scenarios but also gives users to pick a model via UI (like perplexity does) and some customers have built a layer which combines responses from multiple models (such as gemin-2.5-pro, nano-banana) to provide a specific type of response to their users.
Such customers often choose to specify which model is being used via UI or rename it completely and giving a name of their own. I recommend choosing one of the above routes.
I hope I answered your question. I will try to look for a prompt to check model name as well.
Hi @Jay,
Welcome to the Google AI Forum! 
Based on the attached screenshot, I couldn’t find any service which is not offered by Google.
Hi @Krish_Varnakavi1 - your join date is newer than mine, along with a lower “days read” - so welcome to the forum yourself!
The screenshot show that the default of Google Gemini AI models is that, even if they can’t name what specific model they are, they will certainly reveal they are Gemini, even when they are supposed to be “Bob’s Auto Parts” or another’s value-add chatbot product.
Further, a screenshot telling a “user” how to bypass the vendor and go right to Google because it knows it is Gemini provides backing evidence that: anything the model doesn’t know or that you want it to know and report to a user you must provide yourself as a system message, including “You are Gemini 2.5 Pro 2025” or similar if you want to assure customers they get a specific Google model, as is this forum topic’s actual concern.