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MInTRL: Off-policy Intervention can boost On-policy RL

Researchers introduced MInTRL, an off-policy intervention method that boosts on-policy reinforcement learning with verifiable rewards, according to the paper's headline. The approach addresses the limitation that on-policy RL restricts learning to trajectories the current policy can discover itself, while off-policy methods such as supervised fine-tuning can leverage external knowledge. The work has not yet been evaluated in the provided source beyond its stated premise.

read1 min views2 publishedSep 15, 2026

Reinforcement learning with verifiable rewards is typically performed on-policy, keeping training data close to the current policy but limiting learning to trajectories that the policy can discover itself. Off-policy methods such as supervised fine-tuning, on the other hand, can leverage external kn

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