Is the information used in the AI Studio publicly used by Google to train the models and can the data be exposed?
Welcome to the forum.
Yes to both questions. The use of data to train the model is disclosed in the pricing page, Gemini API の料金 | Google for Developers. The catch is, there is no option to get paid service for AI Studio itself. It is free, and therefore data sent to Studio can be used to train the model (and later, be exposed).
The manager, Logan Kirkpatrick, is aware of this issue. My recommendation and workaround (until Google can address this issue) is to only use publicly available data in Studio. I understand you won’t get the best possible prompt that way, but you can get close enough.
Then, use the API in a paid program. That data is safe (Google will not use data transmitted to a billed account). You can do your last prompt tweaks there.
I hope this helps.