Programmer Humor

It is true that AI work (and anything derived from it that isn't significantly transformative) is public domain. That said, the copyright of code that is a mix of AI and human is much more legally grey.

In other work, where it can be more separated, individual elements may have different copyright. For example, a comic was made using AI generated images. It was ruled that all the images were thus public domain. Despite that, the text and the layout of the comic was human-made and so the copyright to that was owned by the author. Code, obviously can't be so easily divided up, and it will be much harder to define what is transformative or not. As such, its a legal grey area that will probably depend on a case-by-case basis.