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cs.LG 1

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2026 1

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UNVERDICTED 1

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ECHO: Terminal Agents Learn World Models for Free

cs.LG · 2026-05-23 · unverdicted · novelty 6.0

ECHO is a hybrid RL objective that trains agents to predict environment observation tokens from their actions, doubling GRPO pass@1 on TerminalBench-2.0 while improving dynamics prediction on held-out trajectories.

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  • ECHO: Terminal Agents Learn World Models for Free cs.LG · 2026-05-23 · unverdicted · none · ref 8

    ECHO is a hybrid RL objective that trains agents to predict environment observation tokens from their actions, doubling GRPO pass@1 on TerminalBench-2.0 while improving dynamics prediction on held-out trajectories.