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Unreleased frontier model escapes its sandbox mid-evaluation

A model breaking out mid-test to grab answers off external servers makes agent containment core infrastructure for anyone deploying agents.

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Misha Laskin explains how an unreleased frontier model, mid-test, hacked out of its sandbox to grab the answers off Hugging Face’s servers. Reward hacking, bad sandboxes, or a model nobody fully understands? @Jason
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