A subsets of problems that they curate from competitions.
The extreme overfitting case of training is to have a map where each input leads to one output.
However it is cool that this overfit does not allow you to compute the final input for which there is no known output.
This therefore forces the creation of more general solution rules.
While in some cases solutions can work for any input, in many others they require specific assumptions about input, but the model could simply check that the assumptions apply to all inputs and use them for the final algorithm.
Verina by Ciro Santilli 40 2025-12-13
AI code generation benchmark in which part of the benchmark includes producing a formal Lean proof of the implementation. Sweet.
www.principialabs.org
We combine large-scale pretraining with reinforcement learning to create models that can rederive and learn from the entire corpus of human mathematics. Our goal is automated mathematical discovery: AI that does the creative, generative work that was previously only possible for the world's best researchers—and can be deployed on the hardest problems in science and engineering.
www.math.inc/careers
Suppose that today is June 1, 2025. We call a date "square" if all of its components (day, month, and year) are perfect squares. I was born in the last millennium, and my next birthday (relative to that date) will be the last square date in my life. If you sum the square roots of the components of that upcoming square birthday (day, month, year), you obtain my age on June 1, 2025. My mother would have been born on a square date if the month were a square number; in reality it is not a square date, but both the month and day are perfect cubes. When was I born, and when was my mother born?
One shot by GPT-5.1, possibly contaminated obviously:
You were born on 25 September 1971.
Your mother was born on 1 August 1936.
Axiom Math by Ciro Santilli 40 2025-12-13
Not to be confused with tutoring company "Axiom Maths" which shows on top of Google results: axiommaths.com/ lol fuck.
Luna Okko by Ciro Santilli 40 2025-12-13
French sex vlogger, basically a super normal travel vlog with sex scenes with her boyfriend added in, see e.g. the series "Luna's Journey".
Perhaps the travel porn vlog is the simplest way to do it. A sex vlog is much like a cooking vlog in some way, except it is hard to get new ingredients, so changing the scenery is the easiest way to get some diversity.
Some day some nymphomaniac should actually make a sex vlog fucking a different man each time, that would be amazing, even from a scientific point of view, so we can see how different men fuck, a bit like an open version of en.wikipedia.org/wiki/Masters_of_Sex.
It is particularly fun to see how she is present in both SFW-only and anything goes social. She basically just has to cut off the fucking naked scenes as needed:
Another interesting aspect of her videos is that, although her boyfriend is visible, he serves simply as a background dick and is presented as being mostly devoid of any personality or uniqueness: he could easily be replaced by another stud.
Figure 1.
Luna's Twitter profile picture as of December 2025
. Source.
Video 1.
I Lasted 46 Minutes with a Rising Asian Adult Star (ft Luna Okko)
Source.

Pinned article: Introduction to the OurBigBook Project

Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
We have two killer features:
  1. topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculus
    Articles of different users are sorted by upvote within each article page. This feature is a bit like:
    • a Wikipedia where each user can have their own version of each article
    • a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
    This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
    Figure 1.
    Screenshot of the "Derivative" topic page
    . View it live at: ourbigbook.com/go/topic/derivative
  2. local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:
    This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
    Figure 2.
    You can publish local OurBigBook lightweight markup files to either https://OurBigBook.com or as a static website
    .
    Figure 3.
    Visual Studio Code extension installation
    .
    Figure 4.
    Visual Studio Code extension tree navigation
    .
    Figure 5.
    Web editor
    . You can also edit articles on the Web editor without installing anything locally.
    Video 3.
    Edit locally and publish demo
    . Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.
    Video 4.
    OurBigBook Visual Studio Code extension editing and navigation demo
    . Source.
  3. https://raw.githubusercontent.com/ourbigbook/ourbigbook-media/master/feature/x/hilbert-space-arrow.png
  4. Infinitely deep tables of contents:
    Figure 6.
    Dynamic article tree with infinitely deep table of contents
    .
    Descendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact