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HySparse2: Hybrid Sparse Attention with Two-Level KV Sharing

By Alexis Dufresne Published September 24, 2026 at 06:12 UTC

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HySparse2: Hybrid Sparse Attention with Two-Level KV Sharing

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Sung Kim @sungkim.bsky.social: • Better MRCRv2 and RULER-v2 scores, plus lower AgentPPL and LongPPL arxiv.org/abs/2609.26368 →
arxiv cs.CL @arxiv-cs-cl.bsky.social: Jianyu Wei, Yizhao Gao, Qihao Zhang, Shimao Chen, Zhengju Tang, Yu Cheng, Shengjie Zhou, Zihan Jiang, Yifan Song, Hailin Zhang, Liang Zhao, … →

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Original headline: HySparse2: Hybrid Sparse Attention with Two-Level KV Sharing