Sergey Levine Proposes Applying RL to Language Instructions for VLAs

svlevine · x · 2026-07-04

UC Berkeley researcher Sergey Levine proposes a new approach: instead of applying reinforcement learning directly to robot actions, apply RL to the "language instructions" sent to the Vision-Language-Action (VLA) model. Because strong Vision-Language Models have excellent priors for sensible semantic instructions, the RL search space is drastically reduced, making training significantly easier.

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