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Related papers: LongCat-Flash-Thinking-2601 Technical Report

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We present LongCat-Flash-Thinking, an efficient 560-billion-parameter open-source Mixture-of-Experts (MoE) reasoning model. Its advanced capabilities are cultivated through a meticulously crafted training process, beginning with long…

Artificial Intelligence · Computer Science 2025-11-10 Meituan LongCat Team , Anchun Gui , Bei Li , Bingyang Tao , Bole Zhou , Borun Chen , Chao Zhang , Chao Zhang , Chengcheng Han , Chenhui Yang , Chi Zhang , Chong Peng , Chuyu Zhang , Cong Chen , Fengcun Li , Gang Xu , Guoyuan Lin , Hao Jiang , Hao Liang , Haomin Fu , Haoxiang Ma , Hong Liu , Hongyan Hao , Hongyin Tang , Hongyu Zang , Hongzhi Ni , Hui Su , Jiahao Liu , Jiahuan Li , Jialin Liu , Jianfei Zhang , Jianhao Xu , Jianing Wang , Jiaqi Sun , Jiaqi Zhang , Jiarong Shi , Jiawei Yang , Jingang Wang , Jinrui Ding , Jun Kuang , Jun Xu , Ke He , Kefeng Zhang , Keheng Wang , Keqing He , Li Wei , Liang Shi , Lin Qiu , Lingbin Kong , Lingchuan Liu , Linsen Guo , Longfei An , Mai Xia , Meng Zhou , Mengshen Zhu , Peng Pei , Pengcheng Jia , Qi Gu , Qi Guo , Qiong Huang , Quan Chen , Quanchi Weng , Rongxiang Weng , Ruichen Shao , Rumei Li , Shanglin Lei , Shuai Du , Shuaikang Liu , Shuang Zhou , Shuhao Hu , Siyu Xu , Songshan Gong , Tao Liang , Tianhao Hu , Wei He , Wei Shi , Wei Wang , Wei Wu , Wei Zhuo , Weifeng Tang , Wenjie Shi , Wenlong Zhu , Xi Su , Xiangcheng Liu , Xiangyu Xi , Xiangzhou Huang , Xiao Liu , Xiaochen Jiang , Xiaowei Shi , Xiaowen Shi , Xiaoyu Li , Xin Chen , Xinyue Zhao , Xuan Huang , Xuemiao Zhang , Xuezhi Cao , Xunliang Cai , Yajie Zhang , Yang Chen , Yang Liu , Yang Liu , Yang Zheng , Yaoming Wang , Yaqi Huo , Yerui Sun , Yifan Lu , Yiyang Li , Youshao Xiao , Yuanzhe Lei , Yuchen Xie , Yueqing Sun , Yufei Zhang , Yuhuai Wei , Yulei Qian , Yunke Zhao , Yuqing Ding , Yuwei Jiang , Zhaohua Yang , Zhengyu Chen , Zhijian Liu , Zhikang Xia , Zhongda Su , Ziran Li , Ziwen Wang , Ziyuan Zhuang , Zongyu Wang , Zunyuan Yang

We introduce LongCat-Flash, a 560-billion-parameter Mixture-of-Experts (MoE) language model designed for both computational efficiency and advanced agentic capabilities. Stemming from the need for scalable efficiency, LongCat-Flash adopts…

Computation and Language · Computer Science 2025-09-22 Meituan LongCat Team , Bayan , Bei Li , Bingye Lei , Bo Wang , Bolin Rong , Chao Wang , Chao Zhang , Chen Gao , Chen Zhang , Cheng Sun , Chengcheng Han , Chenguang Xi , Chi Zhang , Chong Peng , Chuan Qin , Chuyu Zhang , Cong Chen , Congkui Wang , Dan Ma , Daoru Pan , Defei Bu , Dengchang Zhao , Deyang Kong , Dishan Liu , Feiye Huo , Fengcun Li , Fubao Zhang , Gan Dong , Gang Liu , Gang Xu , Ge Li , Guoqiang Tan , Guoyuan Lin , Haihang Jing , Haomin Fu , Haonan Yan , Haoxing Wen , Haozhe Zhao , Hong Liu , Hongmei Shi , Hongyan Hao , Hongyin Tang , Huantian Lv , Hui Su , Jiacheng Li , Jiahao Liu , Jiahuan Li , Jiajun Yang , Jiaming Wang , Jian Yang , Jianchao Tan , Jiaqi Sun , Jiaqi Zhang , Jiawei Fu , Jiawei Yang , Jiaxi Hu , Jiayu Qin , Jingang Wang , Jiyuan He , Jun Kuang , Junhui Mei , Kai Liang , Ke He , Kefeng Zhang , Keheng Wang , Keqing He , Liang Gao , Liang Shi , Lianhui Ma , Lin Qiu , Lingbin Kong , Lingtong Si , Linkun Lyu , Linsen Guo , Liqi Yang , Lizhi Yan , Mai Xia , Man Gao , Manyuan Zhang , Meng Zhou , Mengxia Shen , Mingxiang Tuo , Mingyang Zhu , Peiguang Li , Peng Pei , Peng Zhao , Pengcheng Jia , Pingwei Sun , Qi Gu , Qianyun Li , Qingyuan Li , Qiong Huang , Qiyuan Duan , Ran Meng , Rongxiang Weng , Ruichen Shao , Rumei Li , Shizhe Wu , Shuai Liang , Shuo Wang , Suogui Dang , Tao Fang , Tao Li , Tefeng Chen , Tianhao Bai , Tianhao Zhou , Tingwen Xie , Wei He , Wei Huang , Wei Liu , Wei Shi , Wei Wang , Wei Wu , Weikang Zhao , Wen Zan , Wenjie Shi , Xi Nan , Xi Su , Xiang Li , Xiang Mei , Xiangyang Ji , Xiangyu Xi , Xiangzhou Huang , Xianpeng Li , Xiao Fu , Xiao Liu , Xiao Wei , Xiaodong Cai , Xiaolong Chen , Xiaoqing Liu , Xiaotong Li , Xiaowei Shi , Xiaoyu Li , Xili Wang , Xin Chen , Xing Hu , Xingyu Miao , Xinyan He , Xuemiao Zhang , Xueyuan Hao , Xuezhi Cao , Xunliang Cai , Xurui Yang , Yan Feng , Yang Bai , Yang Chen , Yang Yang , Yaqi Huo , Yerui Sun , Yifan Lu , Yifan Zhang , Yipeng Zang , Yitao Zhai , Yiyang Li , Yongjing Yin , Yongkang Lv , Yongwei Zhou , Yu Yang , Yuchen Xie , Yueqing Sun , Yuewen Zheng , Yuhuai Wei , Yulei Qian , Yunfan Liang , Yunfang Tai , Yunke Zhao , Zeyang Yu , Zhao Zhang , Zhaohua Yang , Zhenchao Zhang , Zhikang Xia , Zhiye Zou , Zhizhao Zeng , Zhongda Su , Zhuofan Chen , Zijian Zhang , Ziwen Wang , Zixu Jiang , Zizhe Zhao , Zongyu Wang , Zunhai Su

We introduce LongCat-Flash-Prover, a flagship 560-billion-parameter open-source Mixture-of- Experts (MoE) model that advances Native Formal Reasoning in Lean4 through agentic tool-integrated reasoning (TIR). We decompose the native formal…

We introduce LongCat-Flash-Omni, a state-of-the-art open-source omni-modal model with 560 billion parameters, excelling at real-time audio-visual interaction. By adopting a curriculum-inspired progressive training strategy that transitions…

Multimedia · Computer Science 2025-12-01 Meituan LongCat Team , Bairui Wang , Bayan , Bin Xiao , Bo Zhang , Bolin Rong , Borun Chen , Chang Wan , Chao Zhang , Chen Huang , Chen Chen , Chen Chen , Chengxu Yang , Chengzuo Yang , Cong Han , Dandan Peng , Delian Ruan , Detai Xin , Disong Wang , Dongchao Yang , Fanfan Liu , Fengjiao Chen , Fengyu Yang , Gan Dong , Gang Huang , Gang Xu , Guanglu Wan , Guoqiang Tan , Guoqiao Yu , Haibo Qiu , Hao Lu , Hongbo Liu , Hongyu Xiang , Jiaheng Wu , Jian Yang , Jiaxing Liu , Jing Huang , Jingang Wang , Jinrui Ding , Juchao Jiang , Jun Kuang , Jun Wang , Junhui Mei , Ke Ding , Kefeng Zhang , Lei Chen , Liang Shi , Limeng Qiao , Liming Zheng , Lin Ma , Liuyang Guo , Liya Ma , Luying Sun , Man Gao , Mengshen Zhu , Miao Cao , Minliang Lin , Nuo Xu , Peng Shi , Qi Zhang , Qian Fang , Qian Wang , Qian Yang , Quanxiu Wang , Rongxiang Weng , Rongxin Guo , Ruoxuan Liang , Senbin Yang , Shanbo Xu , Shanglin Lei , Shengze Ye , Shimin Chen , Shuaiqi Chen , Shujie Hu , Shuo Li , Siqi Yang , Siyu Xu , Siyu Ren , Song Li , Songxiang Liu , Tianhao Bai , Tianye Dai , Wei Hong , Wei Wang , Weixiao Zhao , Wengang Cao , Wenlong Zhu , Wenlong He , Xi Su , Xi Nan , Xiaohan Zhao , Xiaohao Wang , Xiaoyu Zhao , Xiaoyu Wang , Xiaoyu Li , Xin Pan , Xin Chen , Xiusong Sun , Xu Xiang , Xudong Xing , Xuezhi Cao , Xunliang Cai , Yang Yang , Yanli Tan , Yao Yao , Yerui Sun , Yi Chen , Yifan Lu , Yin Gong , Yining Zhang , Yitian Chen , Yiyang Gan , Yuchen Tang , Yuchen Xie , Yueqian Wang , Yuewen Zheng , Yufei Zhang , Yufeng Zhong , Yulei Qian , Yuqi Peng , Yuqian Li , Yuwei Jiang , Zeyang Hu , Zheng Zhang , Zhengkun Tian , Zhiqing Hong , Zhixiong Zeng , Zhuqi Mi , Ziran Li , Ziwen Wang , Ziyi Zhao , Ziyuan Zhuang , Zizhe Zhao

Large Reasoning Models (LRMs) like o3 and DeepSeek-R1 have achieved remarkable progress in reasoning tasks with long cot. However, they remain computationally inefficient and struggle with accuracy when solving problems requiring complex…

Artificial Intelligence · Computer Science 2026-03-03 Haipeng Luo , Huawen Feng , Qingfeng Sun , Can Xu , Kai Zheng , Yufei Wang , Tao Yang , Han Hu , Yansong Tang

We introduce LongCat ZigZag Attention (LoZA), which is a sparse attention scheme designed to transform any existing full-attention models into sparse versions with rather limited compute budget. In long-context scenarios, LoZA can achieve…

The effectiveness of LLM-based agents is often limited not by model capacity alone, but by how efficiently contextual information is utilized at runtime. Existing agent frameworks rely on rigid, syntax-heavy state representations such as…

Machine Learning · Computer Science 2026-02-10 Tong Yang , Yemin Wang , Chaoning Zhang , Aming Wu

Large Language Models (LLMs) have demonstrated remarkable capabilities in orchestrating tools for reasoning tasks. However, existing methods rely on a step-wise paradigm that lacks a global perspective, which causes error accumulation over…

Artificial Intelligence · Computer Science 2026-05-11 Tairan Huang , Siyu Shang , Qiang Chen , Xiu Su , Yi Chen

Large reasoning models have demonstrated strong problem-solving abilities, yet real-world tasks often require external tools and long-horizon interactions. Existing agent frameworks typically follow predefined workflows, which limit…

Artificial Intelligence · Computer Science 2026-02-06 Xiaoxi Li , Wenxiang Jiao , Jiarui Jin , Guanting Dong , Jiajie Jin , Yinuo Wang , Hao Wang , Yutao Zhu , Ji-Rong Wen , Yuan Lu , Zhicheng Dou

Long-form multimodal video understanding requires integrating vision, speech, and ambient audio with coherent long-range reasoning. Existing benchmarks emphasize either temporal length or multimodal richness, but rarely both and while some…

Large language models (LLMs) with Chain-of-Thought (CoT) prompting achieve strong reasoning but often produce unnecessarily long explanations, increasing cost and sometimes reducing accuracy. Fair comparison of efficiency-oriented…

Computation and Language · Computer Science 2025-11-14 Junquan Huang , Haotian Wu , Yubo Gao , Yibo Yan , Junyan Zhang , Yonghua Hei , Song Dai , Jie Zhang , Puay Siew Tan , Xuming Hu

Large language models (LLMs), such as o1 from OpenAI, have demonstrated remarkable reasoning capabilities. o1 generates a long chain-of-thought (LongCoT) before answering a question. LongCoT allows LLMs to analyze problems, devise plans,…

Computation and Language · Computer Science 2025-02-07 Bo Pang , Hanze Dong , Jiacheng Xu , Silvio Savarese , Yingbo Zhou , Caiming Xiong

We introduce MiniMax-M1, the world's first open-weight, large-scale hybrid-attention reasoning model. MiniMax-M1 is powered by a hybrid Mixture-of-Experts (MoE) architecture combined with a lightning attention mechanism. The model is…

Computation and Language · Computer Science 2025-06-17 MiniMax , : , Aili Chen , Aonian Li , Bangwei Gong , Binyang Jiang , Bo Fei , Bo Yang , Boji Shan , Changqing Yu , Chao Wang , Cheng Zhu , Chengjun Xiao , Chengyu Du , Chi Zhang , Chu Qiao , Chunhao Zhang , Chunhui Du , Congchao Guo , Da Chen , Deming Ding , Dianjun Sun , Dong Li , Enwei Jiao , Haigang Zhou , Haimo Zhang , Han Ding , Haohai Sun , Haoyu Feng , Huaiguang Cai , Haichao Zhu , Jian Sun , Jiaqi Zhuang , Jiaren Cai , Jiayuan Song , Jin Zhu , Jingyang Li , Jinhao Tian , Jinli Liu , Junhao Xu , Junjie Yan , Junteng Liu , Junxian He , Kaiyi Feng , Ke Yang , Kecheng Xiao , Le Han , Leyang Wang , Lianfei Yu , Liheng Feng , Lin Li , Lin Zheng , Linge Du , Lingyu Yang , Lunbin Zeng , Minghui Yu , Mingliang Tao , Mingyuan Chi , Mozhi Zhang , Mujie Lin , Nan Hu , Nongyu Di , Peng Gao , Pengfei Li , Pengyu Zhao , Qibing Ren , Qidi Xu , Qile Li , Qin Wang , Rong Tian , Ruitao Leng , Shaoxiang Chen , Shaoyu Chen , Shengmin Shi , Shitong Weng , Shuchang Guan , Shuqi Yu , Sichen Li , Songquan Zhu , Tengfei Li , Tianchi Cai , Tianrun Liang , Weiyu Cheng , Weize Kong , Wenkai Li , Xiancai Chen , Xiangjun Song , Xiao Luo , Xiao Su , Xiaobo Li , Xiaodong Han , Xinzhu Hou , Xuan Lu , Xun Zou , Xuyang Shen , Yan Gong , Yan Ma , Yang Wang , Yiqi Shi , Yiran Zhong , Yonghong Duan , Yongxiang Fu , Yongyi Hu , Yu Gao , Yuanxiang Fan , Yufeng Yang , Yuhao Li , Yulin Hu , Yunan Huang , Yunji Li , Yunzhi Xu , Yuxin Mao , Yuxuan Shi , Yuze Wenren , Zehan Li , Zelin Li , Zhanxu Tian , Zhengmao Zhu , Zhenhua Fan , Zhenzhen Wu , Zhichao Xu , Zhihang Yu , Zhiheng Lyu , Zhuo Jiang , Zibo Gao , Zijia Wu , Zijian Song , Zijun Sun

The emergence of large language models has enabled sophisticated multi-agent systems, yet coordinating their reasoning capabilities through prompt engineering remains challenging. We present a theoretically-grounded framework for dynamic…

Multiagent Systems · Computer Science 2025-10-02 Hassen Dhrif

Long chain-of-thought (CoT) prompting helps Large Language Models (LLMs) solve difficult problems, but very long traces often slow or even degrade performance on fast, intuitive "System-1" tasks. We introduce Connector-Aware Compact CoT…

Artificial Intelligence · Computer Science 2025-09-16 Sunguk Choi , Yonghoon Kwon , Heondeuk Lee

We introduce MiniMax-01 series, including MiniMax-Text-01 and MiniMax-VL-01, which are comparable to top-tier models while offering superior capabilities in processing longer contexts. The core lies in lightning attention and its efficient…

Recent advances in large language models (LLMs) have enabled progress in agentic coding, where models autonomously reason, plan, and act within interactive software development workflows. However, bridging the gap between static text-based…

Can scaling transform reasoning? In this work, we explore the untapped potential of scaling Long Chain-of-Thought (Long-CoT) data to 1000k samples, pioneering the development of a slow-thinking model, RedStar. Through extensive experiments…

We introduce Agentic Reasoning, a framework that enhances large language model (LLM) reasoning by integrating external tool-using agents. Agentic Reasoning dynamically leverages web search, code execution, and structured memory to address…

Artificial Intelligence · Computer Science 2025-07-16 Junde Wu , Jiayuan Zhu , Yuyuan Liu , Min Xu , Yueming Jin

We present Kwaipilot-AutoThink (KAT), an open-source 40B large language model developed to address the overthinking problem in reasoning-intensive tasks, where an automatic thinking training paradigm is proposed to dynamically switch…

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