Sam Altman says an internal OpenAI model can solve problems the world's best mathematicians cannot

gerardsans · x · 2026-09-18

In a conversation with Salesforce CEO Marc Benioff, Sam Altman laid out a capability ladder for OpenAI's math models: GPT-5.5 is roughly at the level of an average math professor, GPT-5.6 at the top 1-2 percentile, Astra slightly better still — and an internal model beyond Astra "can solve things the world's best mathematicians cannot."

A rare quantified statement from Altman about unreleased internal models, anchoring them at superhuman-mathematician level, though with no benchmark details — treat the claim's promotional aspect with caution.

Related event: Altman says internal model beyond Astra surpasses top mathematicians(9 posts)→

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