Live data from Hacker News

OpenAI claims gold-medal performance at IMO 2025

twitter.com

351–360 of 737 posts

Re: OpenAI claims gold-medal performance at IMO 2025

#351
post #44

From that thread: "The model solved P1 through P5; it did not produce a solution for P6." It's interesting that it didn't solve the problem that was by far the hardest for humans too. China, the #1 team got only 21/42 points on it. In most other teams nobody solved it.

To me, this is a tell of human-involvement in the model solution. There is no reason why machines would do badly on exactly the problem which humans do badly as well - without humans prodding the machine towards a solution. Also, there is no reason why machines could not produce a partial or wrong answer to problem 6 which seems like survivor bias to me. ie, that only correct solutions were cherrypicked.

There is at least one reason - it was a harder problem. Agreed that which IMO problems are hard for a human IMO participant and which are hard for an LLM are different things, but seems like they should be positively correlated at least?

Re: OpenAI claims gold-medal performance at IMO 2025

#352

Noam Brown: > this isn’t an IMO-specific model. It’s a reasoning LLM that incorporates new experimental general-purpose techniques. > it’s also more efficient [than o1 or o3] with its thinking. And there’s a lot of room to push the test-time compute and efficiency further. > As fast as recent AI progress has been, I fully expect the trend to continue. Importantly, I think we’re close to AI substantially contributing…

What's the clear path to improved efficiency now that we've reached peak data?

> now that we've reached peak data?

A) that's not clear

B) now we have "reasoning" models that can be used to analyse the data, create n rollouts for each data piece, and "argue" for / against / neutral on every piece of data going into the model. Imagine having every page of a "short story book" + 10 best "how to write" books, and do n x n on them. Huge compute, but basically infinite data as well.

We went from "a bunch of data" to "even more data" to "basically everything we got" to "ok, maybe use a previous model to sort through everything we got and only keep quality data" to "ok, maybe we can augment some data with synthetic datasets from tools etc" to "RL goes brrr" to (point B from above) "let's mix the data with quality sources on best practices".

Re: OpenAI claims gold-medal performance at IMO 2025

#353

Earlier quoted context omitted.

While I usually enjoy seeing these discussions, I think they are really pushing the usefulness of bayesian statistics. If one dude says the chance for an outcome is 8% and another says it's 16% and the outcome does occur, they were both pretty wrong, even though it might seem like the one who guessed a few % higher might have had a better belief system. Now if one of them had said 90% while the other said 8% or 16%,…

The correctness of 8%, 16%, and 90% are all equally unknown since we only have one timeline, no?

That's why you have to let these people make predictions about many things. Than you can weigh the 8, 16, and 90 pct and see who is talking out of their ass.

Re: OpenAI claims gold-medal performance at IMO 2025

#354

Google also joined IMO, and got gold prize. https://x.com/natolambert/status/1946569475396120653 OAI announced early, probably we will hear announcement from Google soon.

Google’s AlphaProof, which got a silver last year, has been using a neural symbolic approach. This gold from OpenAI was pure LLM. We’ll have to see what Google announces, but the LLM approach is interesting because it will likely generalize to all kinds of reasoning problems, not just mathematical proofs.

OpenAI’s systems haven’t been pure language models since the o models though, right? Their RL approach may very well still generalize, but it’s not just a big pre-trained model that is one-shotting these problems.

The key difference is that they claim to have not used any verifiers.

Re: OpenAI claims gold-medal performance at IMO 2025

#355
post #9

Some previous predictions: In 2021 Paul Christiano wrote he would update from 30% to "50% chance of hard takeoff" if we saw an IMO gold by 2025. He thought there was an 8% chance of this happening. Eliezer Yudkowsky said "at least 16%". Source: https://www.lesswrong.com/posts/sWLLdG6DWJEy3CH7n/imo-challe...

While I usually enjoy seeing these discussions, I think they are really pushing the usefulness of bayesian statistics. If one dude says the chance for an outcome is 8% and another says it's 16% and the outcome does occur, they were both pretty wrong, even though it might seem like the one who guessed a few % higher might have had a better belief system. Now if one of them had said 90% while the other said 8% or 16%,…

The person who guessed 16% would have a lower Brier score (lower is better) and someone who estimated 100%, beyond being correct, would have the lowest possible value.

Re: OpenAI claims gold-medal performance at IMO 2025

#356
post #44

From that thread: "The model solved P1 through P5; it did not produce a solution for P6." It's interesting that it didn't solve the problem that was by far the hardest for humans too. China, the #1 team got only 21/42 points on it. In most other teams nobody solved it.

To me, this is a tell of human-involvement in the model solution. There is no reason why machines would do badly on exactly the problem which humans do badly as well - without humans prodding the machine towards a solution. Also, there is no reason why machines could not produce a partial or wrong answer to problem 6 which seems like survivor bias to me. ie, that only correct solutions were cherrypicked.

> There is no reason why machines would do badly on exactly the problem which humans do badly as well

Unless the machine is trained to mimic human thought process.

Re: OpenAI claims gold-medal performance at IMO 2025

#357
post #9

Some previous predictions: In 2021 Paul Christiano wrote he would update from 30% to "50% chance of hard takeoff" if we saw an IMO gold by 2025. He thought there was an 8% chance of this happening. Eliezer Yudkowsky said "at least 16%". Source: https://www.lesswrong.com/posts/sWLLdG6DWJEy3CH7n/imo-challe...

Off topic, but am I the only one getting triggered every time I see a rationalist quantify their prediction of the future with single digit accuracy? It's like their magic way of trying to get everyone to forget that they reached their conclusion in completely hand-wavy way, just like every other human being. But instead of saying "low confidence" or "high confidence" like the rest of us normies, they will tell you t…

[deleted]

Re: OpenAI claims gold-medal performance at IMO 2025

#358
post #345

Noam Brown: > this isn’t an IMO-specific model. It’s a reasoning LLM that incorporates new experimental general-purpose techniques. > it’s also more efficient [than o1 or o3] with its thinking. And there’s a lot of room to push the test-time compute and efficiency further. > As fast as recent AI progress has been, I fully expect the trend to continue. Importantly, I think we’re close to AI substantially contributing…

> I think we’re close to AI substantially contributing to scientific discovery. The new "Full Self-Driving next year"?

"AI" already contributes "substantially" to "scientific discovery". It's a very safe statement to make, whereas "full self-driving" has some concrete implications.

Re: OpenAI claims gold-medal performance at IMO 2025

#359

Interesting that the proofs seem to use a limited vocabulary: https://github.com/aw31/openai-imo-2025-proofs/blob/main/pro... Why waste time say lot word when few word do trick :) Also worth pointing out that Alex Wei is himself a gold medalist at IOI.

> Also worth pointing out that Alex Wei is himself a gold medalist at IOI.

Terence Tao also called it, that the top LLMs would get gold this year in a recent podcast.

Post reply on HN