OpenAI stated Tuesday that its internal AI model produced a Lean-verified proof for the Navier-Stokes fluid equations' potential to "blow up," utilizing approximately 10,000 coordinating agents over 88 hours. This achievement addresses one of seven Millennium Prize Problems, each carrying a $1 million award from the Clay Mathematics Institute. The announcement followed a claim by OpenAI that the result came from a next-generation model significantly more capable than GPT-6 Astra.

However, NYU mathematician Tristan Buckmaster released a statement accusing OpenAI researcher Sébastien Bubeck of learning about his and Anthropic researcher Levent Alpöge’s unpublished, related proof before pressuring them regarding credit. Buckmaster alleged that Bubeck offered options including publishing after their team or excluding Alpöge due to his employment at a rival lab. OpenAI, Bubeck, and CEO Sam Altman denied these accusations, with Bubeck sharing text messages he claimed demonstrated good faith and an offer for Buckmaster’s team to publish first.