Altman says internal post-Astra OpenAI model can solve problems the world's best mathematicians cannot
rohanpaul_ai · x · 2026-09-16
In a conversation with Salesforce CEO Marc Benioff, Sam Altman laid out a stepped ranking of OpenAI models' math ability: GPT-5.5 is roughly as good as an average math professor, GPT-5.6 as good as a top 1-2 percentile professor, Astra slightly better than that — and an internal model past Astra "can do things that the best mathematicians in the world cannot."
It's a notably concrete description of internal frontier progress, implying the unreleased internal model has surpassed world-class human mathematicians on certain problems. Full video is on the Salesforce YouTube channel.
Related event: Altman says internal model beyond Astra surpasses top mathematicians(9 posts)→
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