Kevin Frans(@kvfrans):Here's a fun one with @preston_fu et al -- how should we reward RL policies in a way that scales to longer and more difficult tasks? Our answer lies in-between RL and imitation learning, and provides a simple way to assign dense per-token credit to long trajectories.

Kevin Frans

@kvfrans

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Kevin Frans@kvfrans

2026.09.08 18:52

Here's a fun one with @preston_fu et al -- how should we reward RL policies in a way that scales to longer and more difficult tasks? Our answer lies in-between RL and imitation learning, and provides a simple way to assign dense per-token credit to long trajectories.