Speculation swirls: OpenAI's mystery model may be math-specialized pretraining beating GPT-6 Astra
giffmana · x · 2026-09-09
After OpenAI's Navier-Stokes announcement, willdepue speculated that OpenAI has started astra-next/GPT-6.5 pretraining and it already beats Astra on evals. giffmana offers an alternative hypothesis: it could be a math-specific pretrained model, explaining outsized math benchmark performance—or use a schedule with heavy math data early and broadening later to remain general. All unconfirmed speculation.
Related event: Report: OpenAI Training New Model That Beats Its Own GPT-6 Astra(4 posts)→
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