Interesting, OpenAI's model that solved the Navier–Stokes Millennium Prize problem is "an internal model "significantly more capable than GPT-6 Astra"
It's no secret by now that OpenAI has better internal models than GPT-6 Astra. But "significantly more capable than GPT-6 Astra" is a bold claim.
But it also makes it particularly exciting compared to the rumors of the new Fable, which is said to have a new pre-training system and be significantly better than Astra.
Via Axios
OpenAI's historic math solution overshadowed by credit controversy: https://www.axios.com/2026/09/08/openai-math-solution-navier-stokes-credit