"According to a friend, the IMO asked AI companies not to steal the spotlight from kids and to wait a week after the closing ceremony to announce results." I don't see much reason for the poster to lie here. It also aligns with with what the people on the leanprover forum are saying, and, most importantly, with DeepMind not announcing their results yet.
Edit: multiple other AI research labs have also claimed that IMO asked them to not announce their results for some time (i.e. https://x.com/HarmonicMath/status/1947023450578763991 )
Well, they deliberately ignored the requests of IMO organizers to not publish AI results for some time (a week?) to not steal the spotlight from the actual participants, so clearly this announcement's purpose is creating hype. Makes me lean more towards the "totally grifting" scenario.
Not really. This whole thing looks like a deliberately planned PR campaign, similar to the o3 demo. OpenAI has enough talented mathematicians. They had enough time to just solve the problems themselves. Alternatively, some participants leaking the questions for a reward isn't very unlikely either, and I definitely wouldn't put it past OpenAI to try something like that. Afterwards, they could secretly give hints or tool access to the model, or simply forge the answers, or keep rerunning the model until it gave out the correct answer. We know from FrontierMath and ARC-AGI that OpenAI can't be trusted when it comes to benchmarks.