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SWE-Trail proposes history-guided trajectory collection for coding agent training

SWE-Trail uses earlier trajectories to decide where to spend collection effort while keeping history out of the agent's context. For a 124B student initialized from Ling-3.0-flash-base, it improves mean resolution over independent sampling by 2.33 points on SWE-bench Multilingual and 1.60 points on…

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Claude How

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