CMU's R³ Teaches Robots to Reason Before Acting via RL

CMU researchers introduced R³, which uses reinforcement learning to train robot VLMs to reason in natural language before acting. The work shows test-time compute scaling in robotics lies in using reasoning within the perception-action loop to reshape subsequent observations.

2026-09-02 ~ 2026-09-03 · 3 related posts

• R3: Training Robots to Reason in Natural Language via RL — tw_killian · 2026-09-02
• R³ paper: robots learn to think before acting with carefully done RL on explaining demo data — aviral_kumar2 · 2026-09-03
• CMU's R³ Trains VLMs to Reason in Natural Language to Guide Robots via RL — aviral_kumar2 · 2026-09-03