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o3

o3

software
Last discussed Oct 1, 2026

OpenAI's advanced reasoning AI model (referred to as 'Astra' in the transcript), capable of solving frontier mathematical problems.

What creators say

Emad Mostaque
mentioned

"When o3, the first reasoning model came out... It was the first model to get the gold medal in the International Math Olympiad. To do that cost $80,000. Today, you can do it for $10 with the latest model."

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MS
Mark Sellke
mentioned
Used for: Solving frontier mathematical problems including sphere packing bounds and constructing non-sofic groups Praised: Produced short, elegant proofs; made correct mathematical judgments; combined...

"So this is Astra, I guess, probably the right way to refer to this. The model shows the following... it shows that the linear programming bound in large dimensions has this extremely nice asymptotic behavior and the proof kind of explains where th..."

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