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cs.SE2026
Compact-Bench: Measuring What Context Compaction Costs Long-Horizon Coding Agents
Ruopei Sun, Jianfeng Cai, Kangwen Zhao +2
Context compaction lets long-horizon coding agents continue beyond their context windows, but can erase the state needed to finish a task. Prior evaluations measure efficiency, ret…
cs.SE2026
CodeContests-O: Powering LLMs via Feedback-Driven Iterative Test Case Generation
Jianfeng Cai, Jinhua Zhu, Ruopei Sun +5
The rise of reasoning models necessitates large-scale verifiable data, for which programming tasks serve as an ideal source. However, while competitive programming platforms provid…