Emolysis works with the model provider you choose. The Free plan is bring your own key, and every plan accepts your own model key: the agent sends its requests to that provider under your key. On Pro, Max and Team you can also use the plan's included model usage, so you do not need a key of your own.
We do not name model providers on this site, and the choice of provider is yours. Whichever you choose, the agent sends prompts to that provider, and a prompt can include schemas and sample values from your data. With a paid plan's included usage or usage credits (on Enterprise, metered usage), prompts pass through Emolysis's metering service on the way; that service is designed not to store or log their content. Check that provider's terms for how it handles your requests.
Read more in model keys and credits and what the model provider sees.