On September 8, 2026, OpenAI published a paper claiming that an internal, unreleased AI system had made progress on one of the seven Millennium Prize Problems: the Navier–Stokes existence and smoothness problem. The announcement got a lot of attention fast, partly because of the result itself, and partly because of how it was produced — a coordinated swarm of roughly 10,000 AI agents working in parallel. As developers, we've all seen "AI solves impossible problem" headlines before, and most o...