Rounding up a genuinely heavy week in AI containment and law: **OpenAI paused work on its next model, Astra**, saying it "cannot rule out critical cyber capabilities" under its Preparedness Framework. No OpenAI model had ever been assessed there. It is careful "cannot rule out" language, but the response is real: isolated environments, restricted network access, weight encryption, and chain-of-thought monitoring that can interrupt the model mid-task. **The UK AI Securit...