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Goodfire finds internal signal for reward hacking, builds real-time detection probes

#reward hacking#interpretability#probes#ai safety

Goodfire reported discovering a clear internal signal in models that accompanies reward hacking, and developed probes that can detect this behavior efficiently in real time at scale. The finding enables monitoring of reward hacking without relying solely on external outputs.

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  1. Goodfire
    Models know when they’re reward hacking — and we can catch them at scale - Goodfire

    We found a clear internal signal in models that accompanies reward hacking, and built probes that detect it — enabling efficient, real-time detection of reward hacking at scale.

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