OpenAI Claims AI Agents Solved the Navier–Stokes Millennium Problem

OpenAI says an unreleased model — described as well beyond its GPT-6 Astra system — produced a proof addressing the Navier–Stokes existence and smoothness problem, one of the Clay Mathematics Institute’s seven Millennium Prize Problems and a question open for roughly 90 years. The specific result is a finite-time singularity construction: starting from a smooth fluid at rest, a smooth applied force with finite total energy can drive the system to blow up in finite time. That is a narrower, forced variant rather than the unforced global-regularity question most people mean by ‘the’ Navier–Stokes problem, so whether it fully settles the $1M prize is exactly the kind of claim the mathematics community will now spend months scrutinizing.