AI is okay (not great) at generating low- to mid-skill code. If you are working in a high-skill software domain that requires pervasive state-of-the-art or first-principles implementation then AI produces consistently terrible code. It frequently is flatly incorrect about esoteric technical details that really matter.

It can't reason from first principles and there isn't training data for a lot of state-of-the-art computer science and code implementations. Nothing you can prompt will make it produce non-naive output because it doesn't have that capability.

AI works for a lot of things because, if we are honest, AI generated slop is replacing human generated slop. But not all software is slop and there are software domains where slop is not even an option.