OpenAI: What are they doing with the math stuff? Is this predict the next token or something more?

Obviously out of scope of the original topic, but in the spirit of the ever improving AI capabilities, what does the level1techs community think about the solution to the Navier Stokes millenium prize problem by openAI agents?

from

OpenAI said during a press conference that if a customer wanted to run the same problem, it would cost around $15 million. OpenAI didn’t name the AI model used, but said it was “significantly more capable” than even its latest GPT-6 Astra model.

15 MILLION DOLLARS (raising pinky like Doctor Eeevil)