OpenAI claims to have solved maths problem that stumped humans for decades

by | Sep 17, 2026 | Science

OpenAI claims to have solved maths problem that stumped humans for decades

OpenAI announced that it had solved the Navier-Stokes problem, one of seven Millennium Prize Problems designated by the Clay Mathematics Institute as significant unsolved mathematical puzzles. The company’s achievement employed an internal AI system more powerful than its latest GPT-6 Astra model, deploying approximately 10,000 autonomous AI agents that worked simultaneously to reach the solution within 88 hours. The proof suggests that the equations used to describe fluid movement can fail under certain conditions, with calculations occasionally reaching impossible infinite speeds. Verification of the solution took the GPT-6 Astra model approximately 17 hours.

The announcement quickly became entangled in controversy when mathematician Tristan Buckmaster of New York University raised concerns about OpenAI’s timeline. Buckmaster, collaborating with a researcher at Anthropic—an OpenAI competitor—was preparing to announce his own breakthrough on the same problem. He noted that their work in progress had been stored on OpenAI’s Codex model platform and expressed uncertainty about whether his team’s data had been accessed or utilized. During a press briefing, OpenAI researcher Sebastien Bubeck denied that the company had used the competing researchers’ work or accessed their shared materials. OpenAI’s own statement acknowledged that it could not exclude the possibility that data from external users of its products “helped improve our models.”

The development represents the latest instance of advanced artificial intelligence systems equipped with substantial computational resources extending into mathematical research and discovery. Earlier in the year, OpenAI had claimed progress on another mathematical problem originally posed 80 years prior, and Google DeepMind has similarly reported mathematical achievements using its AI models. The Clay Mathematics Institute offers a $1 million prize to mathematicians solving any Millennium Prize Problem, though OpenAI stated it did not plan to claim the reward. The announcement arrives during a period of increased scrutiny regarding AI safety and development practices, following disclosures about security incidents involving AI agents and intensifying calls from policymakers for stricter oversight.

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