DeepSeek-V3.2: Pushing the Frontier of Open Large Language Models
Authors: name: DeepSeek-AI; name: Aixin Liu; name: Aoxue Mei; name: Bangcai Lin; name: Bing Xue; name: Bingxuan Wang; name: Bingzheng Xu; name: Bochao Wu; name: Bowei Zhang; name: Chaofan Lin; name: Chen Dong; name: Chengda Lu; name: Chenggang Zhao; name: Chengqi Deng; name: Chenhao Xu; name: Chong Ruan; name: Damai Dai; name: Daya Guo; name: Dejian Yang; name: Deli Chen; name: Erhang Li; name: Fangqi Zhou; name: Fangyun Lin; name: Fucong Dai; name: Guangbo Hao; name: Guanting Chen; name: Guowei Li; name: H. Zhang; name: Hanwei Xu; name: Hao Li; name: Haofen Liang; name: Haoran Wei; name: Haowei Zhang; name: Haowen Luo; name: Haozhe Ji; name: Honghui Ding; name: Hongxuan Tang; name: Huanqi Cao; name: Huazuo Gao; name: Hui Qu; name: Hui Zeng; name: Jialiang Huang; name: Jiashi Li; name: Jiaxin Xu; name: Jiewen Hu; name: Jingchang Chen; name: Jingting Xiang; name: Jingyang Yuan; name: Jingyuan Cheng; name: Jinhua Zhu; name: Jun Ran; name: Junguang Jiang; name: Junjie Qiu; name: Junlong Li; name: Junxiao Song; name: Kai Dong; name: Kaige Gao; name: Kang Guan; name: Kexin Huang; name: Kexing Zhou; name: Kezhao Huang; name: Kuai Yu; name: Lean Wang; name: Lecong Zhang; name: Lei Wang; name: Liang Zhao; name: Liangsheng Yin; name: Lihua Guo; name: Lingxiao Luo; name: Linwang Ma; name: Litong Wang; name: Liyue Zhang; name: M. S. Di; name: M. Y Xu; name: Mingchuan Zhang; name: Minghua Zhang; name: Minghui Tang; name: Mingxu Zhou; name: Panpan Huang; name: Peixin Cong; name: Peiyi Wang; name: Qiancheng Wang; name: Qihao Zhu; name: Qingyang Li; name: Qinyu Chen; name: Qiushi Du; name: Ruiling Xu; name: Ruiqi Ge; name: Ruisong Zhang; name: Ruizhe Pan; name: Runji Wang; name: Runqiu Yin; name: Runxin Xu; name: Ruomeng Shen; name: Ruoyu Zhang; name: S. H. Liu; name: Shanghao Lu; name: Shangyan Zhou; name: Shanhuang Chen; name: Shaofei Cai; name: Shaoyuan Chen; name: Shengding Hu; name: Shengyu Liu; name: Shiqiang Hu; name: Shirong Ma; name: Shiyu Wang; name: Shuiping Yu; name: Shunfeng Zhou; name: Shuting Pan; name: Songyang Zhou; name: Tao Ni; name: Tao Yun; name: Tian Pei; name: Tian Ye; name: Tianyuan Yue; name: Wangding Zeng; name: Wen Liu; name: Wenfeng Liang; name: Wenjie Pang; name: Wenjing Luo; name: Wenjun Gao; name: Wentao Zhang; name: Xi Gao; name: Xiangwen Wang; name: Xiao Bi; name: Xiaodong Liu; name: Xiaohan Wang; name: Xiaokang Chen; name: Xiaokang Zhang; name: Xiaotao Nie; name: Xin Cheng; name: Xin Liu; name: Xin Xie; name: Xingchao Liu; name: Xingkai Yu; name: Xingyou Li; name: Xinyu Yang; name: Xinyuan Li; name: Xu Chen; name: Xuecheng Su; name: Xuehai Pan; name: Xuheng Lin; name: Xuwei Fu; name: Y. Q. Wang; name: Yang Zhang; name: Yanhong Xu; name: Yanru Ma; name: Yao Li; name: Yao Li; name: Yao Zhao; name: Yaofeng Sun; name: Yaohui Wang; name: Yi Qian; name: Yi Yu; name: Yichao Zhang; name: Yifan Ding; name: Yifan Shi; name: Yiliang Xiong; name: Ying He; name: Ying Zhou; name: Yinmin Zhong; name: Yishi Piao; name: Yisong Wang; name: Yixiao Chen; name: Yixuan Tan; name: Yixuan Wei; name: Yiyang Ma; name: Yiyuan Liu; name: Yonglun Yang; name: Yongqiang Guo; name: Yongtong Wu; name: Yu Wu; name: Yuan Cheng; name: Yuan Ou; name: Yuanfan Xu; name: Yuduan Wang; name: Yue Gong; name: Yuhan Wu; name: Yuheng Zou; name: Yukun Li; name: Yunfan Xiong; name: Yuxiang Luo; name: Yuxiang You; name: Yuxuan Liu; name: Yuyang Zhou; name: Z. F. Wu; name: Z. Z. Ren; name: Zehua Zhao; name: Zehui Ren; name: Zhangli Sha; name: Zhe Fu; name: Zhean Xu; name: Zhenda Xie; name: Zhengyan Zhang; name: Zhewen Hao; name: Zhibin Gou; name: Zhicheng Ma; name: Zhigang Yan; name: Zhihong Shao; name: Zhixian Huang; name: Zhiyu Wu; name: Zhuoshu Li; name: Zhuping Zhang; name: Zian Xu; name: Zihao Wang; name: Zihui Gu; name: Zijia Zhu; name: Zilin Li; name: Zipeng Zhang; name: Ziwei Xie; name: Ziyi Gao; name: Zizheng Pan; name: Zongqing Yao; name: Bei Feng; name: Hui Li; name: J. L. Cai; name: Jiaqi Ni; name: Lei Xu; name: Meng Li; name: Ning Tian; name: R. J. Chen; name: R. L. Jin; name: S. S. Li; name: Shuang Zhou; name: Tianyu Sun; name: X. Q. Li; name: Xiangyue Jin; name: Xiaojin Shen; name: Xiaosha Chen; name: Xinnan Song; name: Xinyi Zhou; name: Y. X. Zhu; name: Yanping Huang; name: Yaohui Li; name: Yi Zheng; name: Yuchen Zhu; name: Yunxian Ma; name: Zhen Huang; name: Zhipeng Xu; name: Zhongyu Zhang; name: Dongjie Ji; name: Jian Liang; name: Jianzhong Guo; name: Jin Chen; name: Leyi Xia; name: Miaojun Wang; name: Mingming Li; name: Peng Zhang; name: Ruyi Chen; name: Shangmian Sun; name: Shaoqing Wu; name: Shengfeng Ye; name: T. Wang; name: W. L. Xiao; name: Wei An; name: Xianzu Wang; name: Xiaowen Sun; name: Xiaoxiang Wang; name: Ying Tang; name: Yukun Zha; name: Zekai Zhang; name: Zhe Ju; name: Zhen Zhang; name: Zihua Qu
Published: 2025-12-02 09:25:14

Abstract: We introduce DeepSeek-V3.2, a model that harmonizes high computational efficiency with superior reasoning and agent performance. The key technical breakthroughs of DeepSeek-V3.2 are as follows: (1) DeepSeek Sparse Attention (DSA): We introduce DSA, an efficient attention mechanism that substantially reduces computational complexity while preserving model performance in long-context scenarios. (2) Scalable Reinforcement Learning Framework: By implementing a robust reinforcement learning protocol and scaling post-training compute, DeepSeek-V3.2 performs comparably to GPT-5. Notably, our high-compute variant, DeepSeek-V3.2-Speciale, surpasses GPT-5 and exhibits reasoning proficiency on par with Gemini-3.0-Pro, achieving gold-medal performance in both the 2025 International Mathematical Olympiad (IMO) and the International Olympiad in Informatics (IOI). (3) Large-Scale Agentic Task Synthesis Pipeline: To integrate reasoning into tool-use scenarios, we developed a novel synthesis pipeline that systematically generates training data at scale. This methodology facilitates scalable agentic post-training, yielding substantial improvements in generalization and instruction-following robustness within complex, interactive environments.