@jrconlin I'd be highly careful with using it, because you don't know how these LLMs were trained (in fact, big tech doesn't want to disclose this at all, presumably because they could be sued for copyright infringement), and what the quality of the input code was like.
You'll need to thoroughly understand what it came up with, which at that point means that you need to learn everything about it anyway—in the end probably rewriting most of it and not saving any time.