OpenAI's unreleased Astra model solves 10 open math problems

OpenAI published a 249-page manuscript with machine-checkable Lean 4 proofs for 10 open math and theoretical CS problems, including the first explicit construction of a non-sofic group, open since 1999. Inference cost was about $2,000 at Sol API rates; math research head Sébastien Bubeck called the results 'beautiful.'
Featured · Sébastien Bubeck
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