What is the most private/confidential AI to use? Use case is I want to upload parts of a confidential doc to better analyze and understand it, but want it to be completely private and not used for training data.  Gemini if you turn off 'Apps Activity' ? ChatGPT if you are paid?

Building. Prior: VP at Adobe, GM of Behance, co-founder of the Content Authenticity Initiative, early days at TED. https://williamallen.com

Unless you run a model locally. ChatGPT and Gemini pro can't guarantee such level of privacy.