As you would expect, the USAAIO Guide has just come out. It was published this month. Correct me if I am wrong, but the first messages in the Discord server appeared only about a week ago, so I believe the guide was released this month.

I don't think there is much to say yet, since it seems to have the same structure as the USAMO Guide and the USACO Guide. I say “seems” because it is not fully published yet. The creators are still working on the modules, so for now the only thing you will see when entering the USAAIO Guide is an invitation to join the waitlist.

Disclaimer: when writing this blog, I did not know there was already a USABO Guide, but it seems to have been created a long time ago, since the copyright dates back to 2024. However, there are already other guides if you visit Pandorax. As you can see, there is a USAAAO Guide, a USESO Guide, and the previously mentioned USABO Guide. But I think these ones have a different structure from the USACO, USAMO, or USAAIO guides.

It is interesting to see how the USACO Guide has grown into something much bigger than just a competitive programming resource. What started as a guide for programming has inspired similar projects for mathematics, and now even artificial intelligence. I would not be surprised if more olympiads follow the same path in the future.

Personally, I think this is a great direction for the olympiad community. Having everything organized in one place makes it much easier for beginners to know where to start and for more experienced students to find good practice material without jumping between dozens of websites. If these guides keep expanding, preparing for olympiads will become much more accessible than it was just a few years ago.