[drivingmenuts]

Is each Claude instance a separate individual or is a shared AI? Because I'm not sure I would want an AI that learned about my confidential business information sharing that with anyone else, without my express permission.

This does not sound like it would be learning general information helpful across an industry, but specific, actionable information.

If not available now, is that something that AI vendors are working toward? If so, what is to keep them from using that knowledge to benefit themselves or others of their choosing, rather than the people they are learning from?

While people understand ethics, morals and legality (and ignore them), that does not seem like something that an AI understands in a way that might give them pause before doing an action.