Some really cool news for the world of Math in AI.
OpenAI's unreleased Astra model solved 10 math problems that had stayed open for decades.
Finding all 10 cost roughly $2,000 in tokens at Sol API rates, i.e. $200 per answered question.
Spread across high-dimensional geometry, coding theory, operator algebras, quantum complexity and lattice cryptography.
Each AI produced argument was rebuilt in Lean, that rechecks a proof step by step, and that only signs off when every step is fully justified.