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Sourced AI briefs in publish order — newest first. Citeable originals live on the homepage under From Signal Desk.

AISep 2, 2026OpenAI

Safety overview: GPT-6 Astra

OpenAI says GPT-6 Astra is its most capable broadly deployed model and the first to hit Critical cybersecurity capability—then spends equal space on stronger guards and weaker CoT monitorability.