> Using a company’s AI account is literally using the company’s resources for a personal project. There is no plausible case where they don’t own it.

Honestly, of the two scenarios, this one is the more likely to fall on the employee's side.

We haven't really tested the legal precedent for ownership of LLM outputs very thoroughly yet, and I'm willing to bet a bunch of us still have employment contracts that haven't been updated to cover LLM use...