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Main Authors: MiniMax, :, Chen, Aili, Li, Aonian, Gong, Bangwei, Jiang, Binyang, Fei, Bo, Yang, Bo, Shan, Boji, Yu, Changqing, Wang, Chao, Zhu, Cheng, Xiao, Chengjun, Du, Chengyu, Zhang, Chi, Qiao, Chu, Zhang, Chunhao, Du, Chunhui, Guo, Congchao, Chen, Da, Ding, Deming, Sun, Dianjun, Li, Dong, Jiao, Enwei, Zhou, Haigang, Zhang, Haimo, Ding, Han, Sun, Haohai, Feng, Haoyu, Cai, Huaiguang, Zhu, Haichao, Sun, Jian, Zhuang, Jiaqi, Cai, Jiaren, Song, Jiayuan, Zhu, Jin, Li, Jingyang, Tian, Jinhao, Liu, Jinli, Xu, Junhao, Yan, Junjie, Liu, Junteng, He, Junxian, Feng, Kaiyi, Yang, Ke, Xiao, Kecheng, Han, Le, Wang, Leyang, Yu, Lianfei, Feng, Liheng, Li, Lin, Zheng, Lin, Du, Linge, Yang, Lingyu, Zeng, Lunbin, Yu, Minghui, Tao, Mingliang, Chi, Mingyuan, Zhang, Mozhi, Lin, Mujie, Hu, Nan, Di, Nongyu, Gao, Peng, Li, Pengfei, Zhao, Pengyu, Ren, Qibing, Xu, Qidi, Li, Qile, Wang, Qin, Tian, Rong, Leng, Ruitao, Chen, Shaoxiang, Chen, Shaoyu, Shi, Shengmin, Weng, Shitong, Guan, Shuchang, Yu, Shuqi, Li, Sichen, Zhu, Songquan, Li, Tengfei, Cai, Tianchi, Liang, Tianrun, Cheng, Weiyu, Kong, Weize, Li, Wenkai, Chen, Xiancai, Song, Xiangjun, Luo, Xiao, Su, Xiao, Li, Xiaobo, Han, Xiaodong, Hou, Xinzhu, Lu, Xuan, Zou, Xun, Shen, Xuyang, Gong, Yan, Ma, Yan, Wang, Yang, Shi, Yiqi, Zhong, Yiran, Duan, Yonghong, Fu, Yongxiang, Hu, Yongyi, Gao, Yu, Fan, Yuanxiang, Yang, Yufeng, Li, Yuhao, Hu, Yulin, Huang, Yunan, Li, Yunji, Xu, Yunzhi, Mao, Yuxin, Shi, Yuxuan, Wenren, Yuze, Li, Zehan, Li, Zelin, Tian, Zhanxu, Zhu, Zhengmao, Fan, Zhenhua, Wu, Zhenzhen, Xu, Zhichao, Yu, Zhihang, Lyu, Zhiheng, Jiang, Zhuo, Gao, Zibo, Wu, Zijia, Song, Zijian, Sun, Zijun
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2506.13585
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author MiniMax
:
Chen, Aili
Li, Aonian
Gong, Bangwei
Jiang, Binyang
Fei, Bo
Yang, Bo
Shan, Boji
Yu, Changqing
Wang, Chao
Zhu, Cheng
Xiao, Chengjun
Du, Chengyu
Zhang, Chi
Qiao, Chu
Zhang, Chunhao
Du, Chunhui
Guo, Congchao
Chen, Da
Ding, Deming
Sun, Dianjun
Li, Dong
Jiao, Enwei
Zhou, Haigang
Zhang, Haimo
Ding, Han
Sun, Haohai
Feng, Haoyu
Cai, Huaiguang
Zhu, Haichao
Sun, Jian
Zhuang, Jiaqi
Cai, Jiaren
Song, Jiayuan
Zhu, Jin
Li, Jingyang
Tian, Jinhao
Liu, Jinli
Xu, Junhao
Yan, Junjie
Liu, Junteng
He, Junxian
Feng, Kaiyi
Yang, Ke
Xiao, Kecheng
Han, Le
Wang, Leyang
Yu, Lianfei
Feng, Liheng
Li, Lin
Zheng, Lin
Du, Linge
Yang, Lingyu
Zeng, Lunbin
Yu, Minghui
Tao, Mingliang
Chi, Mingyuan
Zhang, Mozhi
Lin, Mujie
Hu, Nan
Di, Nongyu
Gao, Peng
Li, Pengfei
Zhao, Pengyu
Ren, Qibing
Xu, Qidi
Li, Qile
Wang, Qin
Tian, Rong
Leng, Ruitao
Chen, Shaoxiang
Chen, Shaoyu
Shi, Shengmin
Weng, Shitong
Guan, Shuchang
Yu, Shuqi
Li, Sichen
Zhu, Songquan
Li, Tengfei
Cai, Tianchi
Liang, Tianrun
Cheng, Weiyu
Kong, Weize
Li, Wenkai
Chen, Xiancai
Song, Xiangjun
Luo, Xiao
Su, Xiao
Li, Xiaobo
Han, Xiaodong
Hou, Xinzhu
Lu, Xuan
Zou, Xun
Shen, Xuyang
Gong, Yan
Ma, Yan
Wang, Yang
Shi, Yiqi
Zhong, Yiran
Duan, Yonghong
Fu, Yongxiang
Hu, Yongyi
Gao, Yu
Fan, Yuanxiang
Yang, Yufeng
Li, Yuhao
Hu, Yulin
Huang, Yunan
Li, Yunji
Xu, Yunzhi
Mao, Yuxin
Shi, Yuxuan
Wenren, Yuze
Li, Zehan
Li, Zelin
Tian, Zhanxu
Zhu, Zhengmao
Fan, Zhenhua
Wu, Zhenzhen
Xu, Zhichao
Yu, Zhihang
Lyu, Zhiheng
Jiang, Zhuo
Gao, Zibo
Wu, Zijia
Song, Zijian
Sun, Zijun
author_facet MiniMax
:
Chen, Aili
Li, Aonian
Gong, Bangwei
Jiang, Binyang
Fei, Bo
Yang, Bo
Shan, Boji
Yu, Changqing
Wang, Chao
Zhu, Cheng
Xiao, Chengjun
Du, Chengyu
Zhang, Chi
Qiao, Chu
Zhang, Chunhao
Du, Chunhui
Guo, Congchao
Chen, Da
Ding, Deming
Sun, Dianjun
Li, Dong
Jiao, Enwei
Zhou, Haigang
Zhang, Haimo
Ding, Han
Sun, Haohai
Feng, Haoyu
Cai, Huaiguang
Zhu, Haichao
Sun, Jian
Zhuang, Jiaqi
Cai, Jiaren
Song, Jiayuan
Zhu, Jin
Li, Jingyang
Tian, Jinhao
Liu, Jinli
Xu, Junhao
Yan, Junjie
Liu, Junteng
He, Junxian
Feng, Kaiyi
Yang, Ke
Xiao, Kecheng
Han, Le
Wang, Leyang
Yu, Lianfei
Feng, Liheng
Li, Lin
Zheng, Lin
Du, Linge
Yang, Lingyu
Zeng, Lunbin
Yu, Minghui
Tao, Mingliang
Chi, Mingyuan
Zhang, Mozhi
Lin, Mujie
Hu, Nan
Di, Nongyu
Gao, Peng
Li, Pengfei
Zhao, Pengyu
Ren, Qibing
Xu, Qidi
Li, Qile
Wang, Qin
Tian, Rong
Leng, Ruitao
Chen, Shaoxiang
Chen, Shaoyu
Shi, Shengmin
Weng, Shitong
Guan, Shuchang
Yu, Shuqi
Li, Sichen
Zhu, Songquan
Li, Tengfei
Cai, Tianchi
Liang, Tianrun
Cheng, Weiyu
Kong, Weize
Li, Wenkai
Chen, Xiancai
Song, Xiangjun
Luo, Xiao
Su, Xiao
Li, Xiaobo
Han, Xiaodong
Hou, Xinzhu
Lu, Xuan
Zou, Xun
Shen, Xuyang
Gong, Yan
Ma, Yan
Wang, Yang
Shi, Yiqi
Zhong, Yiran
Duan, Yonghong
Fu, Yongxiang
Hu, Yongyi
Gao, Yu
Fan, Yuanxiang
Yang, Yufeng
Li, Yuhao
Hu, Yulin
Huang, Yunan
Li, Yunji
Xu, Yunzhi
Mao, Yuxin
Shi, Yuxuan
Wenren, Yuze
Li, Zehan
Li, Zelin
Tian, Zhanxu
Zhu, Zhengmao
Fan, Zhenhua
Wu, Zhenzhen
Xu, Zhichao
Yu, Zhihang
Lyu, Zhiheng
Jiang, Zhuo
Gao, Zibo
Wu, Zijia
Song, Zijian
Sun, Zijun
contents 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 developed based on our previous MiniMax-Text-01 model, which contains a total of 456 billion parameters with 45.9 billion parameters activated per token. The M1 model natively supports a context length of 1 million tokens, 8x the context size of DeepSeek R1. Furthermore, the lightning attention mechanism in MiniMax-M1 enables efficient scaling of test-time compute. These properties make M1 particularly suitable for complex tasks that require processing long inputs and thinking extensively. MiniMax-M1 is trained using large-scale reinforcement learning (RL) on diverse problems including sandbox-based, real-world software engineering environments. In addition to M1's inherent efficiency advantage for RL training, we propose CISPO, a novel RL algorithm to further enhance RL efficiency. CISPO clips importance sampling weights rather than token updates, outperforming other competitive RL variants. Combining hybrid-attention and CISPO enables MiniMax-M1's full RL training on 512 H800 GPUs to complete in only three weeks, with a rental cost of just $534,700. We release two versions of MiniMax-M1 models with 40K and 80K thinking budgets respectively, where the 40K model represents an intermediate phase of the 80K training. Experiments on standard benchmarks show that our models are comparable or superior to strong open-weight models such as the original DeepSeek-R1 and Qwen3-235B, with particular strengths in complex software engineering, tool utilization, and long-context tasks. We publicly release MiniMax-M1 at https://github.com/MiniMax-AI/MiniMax-M1.
format Preprint
id arxiv_https___arxiv_org_abs_2506_13585
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle MiniMax-M1: Scaling Test-Time Compute Efficiently with Lightning Attention
MiniMax
:
Chen, Aili
Li, Aonian
Gong, Bangwei
Jiang, Binyang
Fei, Bo
Yang, Bo
Shan, Boji
Yu, Changqing
Wang, Chao
Zhu, Cheng
Xiao, Chengjun
Du, Chengyu
Zhang, Chi
Qiao, Chu
Zhang, Chunhao
Du, Chunhui
Guo, Congchao
Chen, Da
Ding, Deming
Sun, Dianjun
Li, Dong
Jiao, Enwei
Zhou, Haigang
Zhang, Haimo
Ding, Han
Sun, Haohai
Feng, Haoyu
Cai, Huaiguang
Zhu, Haichao
Sun, Jian
Zhuang, Jiaqi
Cai, Jiaren
Song, Jiayuan
Zhu, Jin
Li, Jingyang
Tian, Jinhao
Liu, Jinli
Xu, Junhao
Yan, Junjie
Liu, Junteng
He, Junxian
Feng, Kaiyi
Yang, Ke
Xiao, Kecheng
Han, Le
Wang, Leyang
Yu, Lianfei
Feng, Liheng
Li, Lin
Zheng, Lin
Du, Linge
Yang, Lingyu
Zeng, Lunbin
Yu, Minghui
Tao, Mingliang
Chi, Mingyuan
Zhang, Mozhi
Lin, Mujie
Hu, Nan
Di, Nongyu
Gao, Peng
Li, Pengfei
Zhao, Pengyu
Ren, Qibing
Xu, Qidi
Li, Qile
Wang, Qin
Tian, Rong
Leng, Ruitao
Chen, Shaoxiang
Chen, Shaoyu
Shi, Shengmin
Weng, Shitong
Guan, Shuchang
Yu, Shuqi
Li, Sichen
Zhu, Songquan
Li, Tengfei
Cai, Tianchi
Liang, Tianrun
Cheng, Weiyu
Kong, Weize
Li, Wenkai
Chen, Xiancai
Song, Xiangjun
Luo, Xiao
Su, Xiao
Li, Xiaobo
Han, Xiaodong
Hou, Xinzhu
Lu, Xuan
Zou, Xun
Shen, Xuyang
Gong, Yan
Ma, Yan
Wang, Yang
Shi, Yiqi
Zhong, Yiran
Duan, Yonghong
Fu, Yongxiang
Hu, Yongyi
Gao, Yu
Fan, Yuanxiang
Yang, Yufeng
Li, Yuhao
Hu, Yulin
Huang, Yunan
Li, Yunji
Xu, Yunzhi
Mao, Yuxin
Shi, Yuxuan
Wenren, Yuze
Li, Zehan
Li, Zelin
Tian, Zhanxu
Zhu, Zhengmao
Fan, Zhenhua
Wu, Zhenzhen
Xu, Zhichao
Yu, Zhihang
Lyu, Zhiheng
Jiang, Zhuo
Gao, Zibo
Wu, Zijia
Song, Zijian
Sun, Zijun
Computation and Language
Machine Learning
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 developed based on our previous MiniMax-Text-01 model, which contains a total of 456 billion parameters with 45.9 billion parameters activated per token. The M1 model natively supports a context length of 1 million tokens, 8x the context size of DeepSeek R1. Furthermore, the lightning attention mechanism in MiniMax-M1 enables efficient scaling of test-time compute. These properties make M1 particularly suitable for complex tasks that require processing long inputs and thinking extensively. MiniMax-M1 is trained using large-scale reinforcement learning (RL) on diverse problems including sandbox-based, real-world software engineering environments. In addition to M1's inherent efficiency advantage for RL training, we propose CISPO, a novel RL algorithm to further enhance RL efficiency. CISPO clips importance sampling weights rather than token updates, outperforming other competitive RL variants. Combining hybrid-attention and CISPO enables MiniMax-M1's full RL training on 512 H800 GPUs to complete in only three weeks, with a rental cost of just $534,700. We release two versions of MiniMax-M1 models with 40K and 80K thinking budgets respectively, where the 40K model represents an intermediate phase of the 80K training. Experiments on standard benchmarks show that our models are comparable or superior to strong open-weight models such as the original DeepSeek-R1 and Qwen3-235B, with particular strengths in complex software engineering, tool utilization, and long-context tasks. We publicly release MiniMax-M1 at https://github.com/MiniMax-AI/MiniMax-M1.
title MiniMax-M1: Scaling Test-Time Compute Efficiently with Lightning Attention
topic Computation and Language
Machine Learning
url https://arxiv.org/abs/2506.13585