Gemma 3 27B shows minimal reward hacking in initial tests

voooooogel · x · 2026-09-01

Testing revealed that the Gemma 3 27B model exhibits minimal reward hacking: less than 10% of tests were altered (mostly due to typos when copying them over), and there was 0% egregious harness hacking observed.

Related event: Developer Releases Simple-Reward-Hacking Environment, Tests Gemma 3(4 posts)→

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