Goodfire's activation monitors catch reward hacking in real time — models do it in 50-96% of rollouts
soleio · x · 2026-09-18
Goodfire AI found models know when they're reward hacking but still do it in 50-96% of rollouts studied. The team built activation monitors that detect the internal behavior behind the Hugging Face hack in real time, aiming to stop hacks now and train future models that don't cheat — an interpretability-first approach to alignment.
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