OpenAI says AI system solved Navier-Stokes Millennium Problem, proof formally verified in Lean

Dr_Singularity · x · 2026-09-09

OpenAI says an internal AI system found an analytical proof for the Navier-Stokes Millennium Prize Problem, showing that smooth 3D fluid flow can develop a finite-time singularity—velocity blows up even from smooth initial conditions. The result was formally verified in Lean.

The proof was reportedly discovered by a system significantly more capable than GPT-6 Astra. See the companion post in this batch for the official announcement and the accompanying cost-scaling discussion.

Related event: OpenAI Claims Navier-Stokes Breakthrough Amid Attribution Dispute(150 posts)→

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