The Tier Nobody Had Used
OpenAI says an unreleased model called Astra reached the top tier of its own preparedness framework and is being held back — the first time any lab has claimed that. Damra and Lenar work through what the word means when the exam and the answer key belong to the same company, then follow the day's other containment story into a leaky test sandbox, a cost frontier that moved overnight, and two hosted agent runtimes that shipped hours apart.
OpenAI on responding to critical cyber capabilities, with Altman and Brockman on the same evaluations
Susan Zhang on misconfigured infrastructure and Rep…
The skinny
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