Like many things, these differ by jurisdictions.

I believe in many countries, the standard for a wide range of IP is that if something is largely produced by AI systems, it can not be patented / copyrighted / trademarked. It seems that "a significant" contribution must have been done by humans, that's the word you'll see again and again.

But I am not sure how one could prove that something is produced mostly by AI, or mostly by human. Right now anyone could use AI models to do most of the work, and just say or make up documentation that it is (major) human work.