OpenAI is slowing down its next model over ‘critical’ cyber risk

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OpenAI tested Astra, one of its upcoming models, over the past few days. In a post on Friday, it said the results were strong enough that it “cannot rule out” critical cyber capabilities. So it is pausing some internal work on the model and scaling up security while testing continues.

“Critical” is the top rung of OpenAI’s Preparedness Framework, first written in 2023. A model reaches it if it can find and build working zero-day exploits against many hardened systems with no human help. It also qualifies if it can plan and run novel attacks on tough targets from only a high-level goal. Every prior model, including GPT-5.6-Sol, sat a level below, at “High”.

What OpenAI says it is doing

The steps follow the framework’s rules for a model this capable. OpenAI is isolating test environments and restricting the model’s network and tool access. It is hardening how it...

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