OpenAI's Astra solved 10 open math/TCS problems with zero-sorry Lean 4 proofs for ~$2,000 · Jadid

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Monday, August 3, 2026 · 1 of 4

OpenAI's Astra solved 10 open math/TCS problems with zero-sorry Lean 4 proofs for ~$2,000
— headlined by the first explicit non-sofic group construction since 1999; Astra itself is unreleased (Aug 1–2)
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