OpenAI claims to have solved the Navier-Stokes millennium problem, but faces allegations of using unpublished work from other researchers.

What it means

OpenAI is publicly claiming to have solved the Navier-Stokes existence-and-smoothness problem, one of the Clay Mathematics Institute's seven Millennium Prize Problems, through a large AI-driven effort. The claim is not an accepted proof: academic mathematicians, including NYU's Tristan Buckmaster (whose statement is linked), allege OpenAI used their unpublished work without permission. The news is therefore both a would-be landmark mathematical result and a dispute over credit and provenance.

Accuracy & sourcesGrounded

The claim rests on OpenAI's own announcement plus a named primary statement from Buckmaster, relayed by reputable secondary outlets; it has not been peer-reviewed or independently verified, and the 'used unpublished work' part is an allegation, not an established finding.

How new

Published on 2026-09-08, this is a fresh news cycle rather than a resurfacing of older material.

Go deeper

• Wired coverage
• New Scientist coverage
• Scientific American coverage