3. To be truly useful, you have to send your company's proprietary code to a 3rd-party AI, which may or may not use it for training their AI, or which may or may not have security issues and leak your proprietary code. Yes, we do this already with GitHub/GitLab, etc. but those are mature and (AFAIK) haven't had big security issues like OpenAI has had in the past year. 4. For ChatGPT at least, you have to give them your phone number to sign up. For me this is a deal-breaker, but I get others are fine with it.