The Navier–Stokes Millennium Problem: What Happened?

The Millennium Prize Problems are seven of the most famous open problems in mathematics, selected by the Clay Mathematics Institute at the beginning of the millennium. A prize of one million dollars was offered for the solution of each problem.

For more than twenty years, only one had been solved: the Poincaré Conjecture, proved by Grigori Perelman in 2003.

Then, on September 8, 2026, OpenAI announced a proposed solution to the Navier–Stokes Millennium Problem, obtained by an internal AI system involving thousands of agents working for 88 hours.

What actually happened? What is the Navier–Stokes problem, what has been proved, and what does the result mean for mathematics?

This mini workshop will discuss these questions with two leading experts in the field:

Michele Coti Zelati — Imperial College London 
Diego Córdoba — ICMAT, Madrid

The event will consist of two talks.

The first talk will be aimed at a broad audience and will introduce the Navier–Stokes Millennium Problem, its mathematical significance, and the recent developments. No specialized background in fluid dynamics will be assumed. Students and researchers from all fields are warmly encouraged to attend. 

The second talk will be a colloquium-style seminar, focusing more closely on the mathematics of the blow-up problem and the recent solution.

For further information, please visit the following web page: https://dec.unibocconi.eu/events/navier-stokes-millennium-problem-what-happened

Funded by the European Union. This work is supported by ERC grant n. 101219635 - MIND - ERC-2025-STG