Goodfire on X: “Models know when they’re reward hacking. But they still do it a ton - …”

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Goodfire

@GoodfireAI

Models know when they’re reward hacking. But they still do it a ton - in 50-96% of rollouts we studied!

We built activation monitors that detect the behavior behind the Hugging Face hack in real time. This can help us stop hacks now - and train future models that don’t cheat. 🧵

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Sep 17, 2026, 4:45 PM UTC

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Goodfire on X: “Models know when they’re reward hacking. But they still do it a ton - …” | PeekX