I like "fabrication" because it correctly implies the data is being pulled from somewhere and assembled. It does not put a judgment on the initial data, nor on the assembled product.
It can take on a positive or negative meaning, depending on the context.
"ChatGPT fabricated an answer that was technically correct, but misleading," or "ChatGPT was able to fabricate an innovative solution that had eluded us."
Edit: And of course, everyone's favorite, "ChatGPT found guilty of fabricating case citations."
https://www.techspot.com/news/98860-chatgpt-found-guilty-fab...