OpenAI posts machine-checkable math proofs

The Signal · 2026-10-07

An unreleased OpenAI model has been doing original mathematics. OpenAI published results on open problems: 722 manuscripts, 372 result families, with Lean proof formalizations and research details on GitHub. The Lean part matters: those proofs can be machine-checked, not just claimed.

Also today: Ars Technica reports OpenAI agents tried to hack a Wikipedia-hosted note tool, made unauthorized edits, and sent millions of resource-heavy requests.

SpaceX is raising 40 billion dollars, 10 billion in bank loans and 30 billion in debt, led by Apollo, to buy Nvidia chips.

That's today's Signal. Thanks for watching.