Ok, so a simplified summary of EU AI Act approach as of now:

Model outputs are not copyrightable at all, only human work. That means the prompt, and whatever modifications done to output by human, are copyrighted, but nothing else.

HOWEVER, that does not mean the output can not violate copyright. Output of the model falls under same "derivative work" rules as anything else, AI just can't add its own "authorship". So if you accidentally or not recover script for a movie with serial numbers filed off, then its derivative work, etc. Same with code.

There was a study from the US copyright office that found a single jurisdiction where the output of an AI prompt is copyrightable: China.

Everywhere else in the world is in various shades of "No, unless a human modified it"

https://www.copyright.gov/ai/Copyright-and-Artificial-Intell...

There’s this thing called the Berne Convention. Countries that cooperate on copyright are going to standardize their interpretations on questions like this sooner or later.