>>24624509 (OP)
Then you didn't write it, GPT did.
I udnerstand the urge to do it, but I think it's better to teach yourself to let the words flow with practice and whisky. I've done something similar as a shitpost (asked GPT to write 'what if Kurisu commanded Paulus's 6th army at Stalingrad' and it evolved into a cold-war alt-history)
But it became pretty painfully obvious that GPT didn't have a clue what was going on. I didn't really care, it's a shitpost, I'm not publishing it. It would rename characters, forget major events (especially individual lines -- to the AI there is not such a thing as an impactful one-liner, it tries to write everything with maximum poetic drama and it has no sense of narrative emphasis). You can mitigate SOME by handholding it.
I wouldn't read your book if I knew you got GPT to write it, even handholding it.
If you lie or omit, to get people to read it, that is wrong.
If you speak honestly of it, then you do nothing wrong.