Reinforcement Learning with Decomposed Subtasks
Group Relative Policy Optimization (GRPO) and related policy-gradient methods for training language model agents collapse an entire multi-turn rollout into a single scalar trajectory reward before it enters the policy update. When the task composes distinct skills, especially under sparse and delayed environmental feed...
Mattie Terzolo, Mikolaj Sacha, Ayan Sinha et al.
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