I'll link to a previous comment of mine: https://news.ycombinator.com/item?id=48968156

> You need to have a very specific and 'creative' / 'substantial' expression of an idea for copyright to apply. The output of an LLM can be easily be such, but usually not.

This is incomplete with current US law. You need the above (the typical copyright qualifiers) AND evidence of substantial human involvement in the creation.

Minimally directing an autonomous agent does not qualify.