Evidence item

OpenAI's announcement says the researchers and the agents "did not see any of their work through any means until they released it publicly" and that "no specific user data was accessed in order to solve this problem." A few lines later it adds: "While unlikely, we cannot rule out that de-identified data derived from their usage of our products helped improve our models." These quotations are taken from OpenAI's own announcement of the result, On the Navier-Stokes Millennium Prize Problem, published 8 September 2026.