OpenAI's Astra model solves 10 open math problems for $2,000

OpenAI's unreleased Astra model produced machine-verified proofs for 10 long-standing problems in math and theoretical CS, including the first explicit construction of a non-sofic group (open since 1999). Total inference cost was roughly $2,000 at GPT-5.6 Sol API rates. Each result ships with a Lean 4 certificate on GitHub.

Featured · Noam Brown, Sébastien Bubeck