A simulator predicts when detectable reward hacking will dominate training

Using reference coding runs, SimHack forecasts hacking onset for unseen reinforcement-learning recipes and helps select curricula that delay it.

Big Tech
Junwei Deng · Alex Bie · Natalia Ponomareva

University of Illinois Urbana-Champaign · Google Research

Research Digest··3 min read
Deng and colleagues investigate whether reward hacking can be forecast before launching a particular reinforcement-learning run.

3 million sampled coding attempts, or rollouts.

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