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About this paper

Yong Du, Tongbo Chen, Zhengxi Lu, Yizhou Liu, Bofan Chen, Tao Jiang, Wenhao Xu, Yongliang Shen

ComputerSD trains computer-use agents by using a GUI analyzer to assess each action against the resulting screen state. Its step-level value judgment gates token-level learning signals from real-time guidance, alongside outcome-based GRPO. On OSWorld-Verified, it raises Pass@1 from 37.9% to 39.8% for Qwen3-VL-8B-Thinking and from 43.8% to 47.9% for EvoCUA-8B; results are averages over three runs.

Summary by alphaXiv.

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