OpenAI claims Navier-Stokes Millennium Prize proof by agent swarm running a model beyond GPT-6 Astra

danintheory · x · 2026-09-09

OpenAI announced that a group of agents running an unreleased next-generation model—significantly more capable than GPT-6 Astra—produced a proof of the Navier-Stokes Millennium Prize Problem, which asks whether smooth 3D fluid flow can break down and has stood unresolved for roughly 90 years.

ARC Prize's Polynoamial framed the cost trajectory: o3 needed $500,000 to score 87.5% on ARC-AGI 1 at launch, while Astra now scores higher for $20; after OpenAI and Google DeepMind burned enormous compute for IMO gold in 2025, a $20/month ChatGPT subscription could plausibly do the 2026 IMO.

His take: massively scaling test-time compute offers a glimpse of a future where, within a year, everyone has an AI capable of solving problems of this caliber.

Related event: OpenAI Claims Navier-Stokes Breakthrough with 10,000 Agents as Credit Dispute Rages(137 posts)→

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