Astra, Looped, and Partially Blind
GPT-6 Astra's headline numbers are real — a jump from 7.8% to 62.7% on ARC-AGI-3, the first model at OpenAI's Critical cybersecurity tier — but the architecture that gets it there may be the most consequential detail: looped transformers that keep reasoning opaque by design, arriving the same week OpenAI's chief scientist said chain-of-thought monitoring is already becoming unreliable.
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