NewsAI
Claude agents formalize Fermat's Last Theorem in Lean in 11 days
Anthropic released a 13-million-line Lean proof of Fermat's Last Theorem on 4 September, written by Claude over 11 days. Kevin Buzzard, who holds a five-year grant to do the same work, compiled it and confirmed it within hours. Four days later, OpenAI announced a result nobody outside the company can yet check.
