I was looking at the submitter's past comments, and the most recent one is interesting: https://news.ycombinator.com/item?id=45092516

> Wow, I was already impressed with the new comment feature on erdosproblems.com and how it's already been used to solve some of the problems. Excited to see if AI can make a meaningful contribution here.

Since then, there has been some discussion of GPTPro finding a bunch of references, thus enabling many of the problem statuses to be changed from "open" to "solved". But it seems that LLMs couldn't find the right reference for this problem.

But there was a different meaningful contribution from AI here instead.