I'm pretty sure Jonny says something about that in the rules video. I think it's ok, like he can't tell most of the time if you did, but try to make it mostly organic if you can. You should probably watch the rules video to see what he says about that, and if you haven't, he goes much more in depth on the rules in the video than the rules shown in the jam page do.
Viewing post in Is AI allowed on coding?
Sorry. Just re-watched the video. here is the transcript for the gen-ai portion
"No Gen AI. If you use Gen AI, you're a loser. We don't like you. Not only will you be disqualified, but you'll be banned from everything I have the power to ban you from. We're not going to have any of it. A lot of people have asked if they can use AI code. We can't really police that, but don't. You can do better than that. AI is lame. We don't like it. "
So yea. Don't use AI if you can help it.