The key question is, this: if the text was generated by an AI, is it automatically not copyrightable. I have heard contradictory claims.

I have heard that if the code, generated by the AI, is the result of a back-and-forth with a human, then that code is copyrightable.

prompt -> code : not copyrightable

prompt -> code -> rework prompt -> code -> rework prompt -> code : copyrightable

IANAL