Unverified50% confidenceFactExact time
JHiMA-WebRL training has two stages: in the first stage, a strong teacher model is used to construct structured subtask supervision signals and fine-tune the two modules; in the second stage, GRPO is extended to the dual-role setting, jointly optimizing the two modules in the WebArena environment through hierarchical rollout grouping and role-specific advantage estimation.
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11/4/2026
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