Chongxuan Li(李崇轩)

Associate Professor
Gaoling School of AI, Renmin University of China
Email: chongxuanli [at] ruc (dot) edu (dot) cn

[Google Scholar] [Profiles-CN] [Interview-CN]

Machine Learning Group (GSAI-ML)
[GSAI-ML Github] [GSAI-ML 知乎]

I am a tenure-track associate professor at Gaoling School of AI, Renmin University of China. I recieved my Ph.D. in the Department of Computer Science and Technology at Tsinghua University, supervised by Prof. Bo Zhang and Prof. Jun Zhu. During my Ph.D., I had spent a great year at AMLab, working with Prof. Max Welling. I received the B.E. degree from Institute for Interdiscriplinary Information Sciences at Tsinghua University in 2014.

My group focuses on deep generative models, which aim to characterize the distribution of the input data and simulate the underlying world. Our mission is to understand the power and limitation of existing models, design scalable and effecient next-generation models, and develop principled and effective algorithms for AIGC applicaitons.

Selected Publications Full Publications

    Diffusion Language Models
  • Large Language Diffusion Models
    Shen Nie, Fengqi Zhu, Zebin You, Xiaolu Zhang, Jingyang Ou, Jun Hu, Jun Zhou, Yankai Lin, Ji-Rong Wen, Chongxuan Li
    Annual Conference on Neural Information Processing Systems (NeurIPS), 2025 [Paper] [Code] [Demo]
    Oral, NeurIPS & Long Paper Best Paper Award, DeLTa@ICLR, Most Influential Papers in NeurIPS 2025 (4/5290)
  • LLaDA-V: Large Language Diffusion Models with Visual Instruction Tuning
    Zebin You, Shen Nie, Xiaolu Zhang, Jun Hu, Jun Zhou, Zhiwu Lu, Ji-Rong Wen, Chongxuan Li
    The IEEE / CVF Computer Vision and Pattern Recognition Conference (CVPR), 2026 [Paper] [Code] [Demo]
  • LLaDA 1.5: Variance-Reduced Preference Optimization for Large Language Diffusion Models
    Fengqi Zhu, Rongzhen Wang, Shen Nie, Xiaolu Zhang, Jun Hu, Jun Zhou, Yankai Lin, Ji-Rong Wen, Chongxuan Li
    The Annual Meeting of the Association for Computational Linguistics (ACL), 2026
  • LLaDA-o: An Effective and Length-Adaptive Omni Diffusion Model
    Zebin You, Xiaolu Zhang, Jun Zhou, Chongxuan Li†, Ji-Rong Wen
    Preprint, 2026
  • Visual World Models
  • minWM: A Full-Stack Open-Source Framework for Real-Time Interactive Video World Models
    Min Zhao, Hongzhou Zhu, Bokai Yan, Zihan Zhou, Yimin Chen, Wenqiang Sun, Kaiwen Zheng, Guande He, Xiao Yang, Chongxuan Li, Fan Bao, Jun Zhu
    Preprint, 2026
  • Causal Forcing: Autoregressive Diffusion Distillation Done Right for High-Quality Real-Time Video Generation
    Hongzhou Zhu, Min Zhao, Guande He, Hang Su, Chongxuan Li, Jun Zhu
    International Conference on Machine Learning (ICML), 2026 [Paper] [Code]
  • FlexWorld: Progressively Expanding 3D Scenes for Flexiable-View Synthesis
    Luxi Chen, Zihan Zhou, Min Zhao, Yikai Wang†, Ge Zhang, Wenhao Huang, Hao Sun, Ji-Rong Wen, Chongxuan Li
    Annual Conference on Neural Information Processing Systems (NeurIPS), 2025 [Paper] [Code] [Demo]
  • ProlificDreamer: High-Fidelity and Diverse Text-to-3D Generation with Variational Score Distillation
    Zhengyi Wang, Cheng Lu, Yikai Wang, Fan Bao, Chongxuan Li†, Hang Su, Jun Zhu†
    Annual Conference on Neural Information Processing Systems (NeurIPS), 2023 [Paper] [Code] [Demo]
  • Foundations of Diffusion Models
  • Analytic-DPM: an Analytic Estimate of the Optimal Reverse Variance in Diffusion Probabilistic Models
    Fan Bao, Chongxuan Li†, Jun Zhu†, Bo Zhang
    International Conference on Learning Representations (ICLR), 2022 [Paper] [Code]
    Oral, Outstanding Paper Award (7/3391)
  • DPM-Solver: A Fast ODE Solver for Diffusion Probabilistic Model Sampling in Around 10 Steps
    Cheng Lu, Yuhao Zhou, Fan Bao, Jianfei Chen, Chongxuan Li, Jun Zhu
    Annual Conference on Neural Information Processing Systems (NeurIPS), 2022 [Paper] [Code]
  • Your Absorbing Discrete Diffusion Secretly Models the Conditional Distributions of Clean Data
    Jingyang Ou, Shen Nie, Kaiwen Xue, Fengqi Zhu, Jiacheng Sun, Zhenguo Li, Chongxuan Li
    International Conference on Learning Representations (ICLR), 2025 [Paper] [Code]
  • All are Worth Words: a ViT Backbone for Diffusion Models
    Fan Bao, Shen Nie, Kaiwen Xue, Yue Cao, Chongxuan Li†, Hang Su, Jun Zhu†
    The IEEE / CVF Computer Vision and Pattern Recognition Conference (CVPR), 2023 [Paper] [Code]

GSAI-ML Group

PhD Students
  • Shen Nie (ByteDance Scholarship)
  • Zebin You
  • Rongzhen Wang
  • Kaiwen Xue
  • Chenyu Zheng (NSFC Grant for PhD)
  • Luxi Chen
  • Fengqi Zhu
  • Jianan Li
  • Jingyang Ou
  • Sitong Chen
  • Bokai Yan
Master Students
  • Zihan Zhou
  • Zexin Sun (visiting)
Undergraduate
  • Shaoxuan Xu
  • Xin Cheng
  • Bowen Xu

Alumni

  • Yong Zhong, PhD, 2021-2026, Research Engineer at ShengShu Tech
  • Min Zhao, PhD and Post Doc (with Jun Zhu), 2020-2026, Assistant Professor at Nanjing University
  • Zhengyi Wang, PhD (with Jun Zhu and Hang Su), 2021-2026, Research Engineer at ByteDance (TopSeed)
  • Cheng Lu, PhD (with Jun Zhu and Jianfei Chen), 2019-2023, ByteDance Scholarship, research scientist at OpenAI & Meta
  • Fan Bao, PhD (with Jun Zhu), 2019-2023, ByteDance Scholarship, CTO at ShengShu Tech
  • Kun Xu, PhD (with Jun Zhu), 2016-2021, Citadel
  • Hanzhong Guo, master, 2022-2024, PhD at HKU
  • Tsung Wei Tsai, master (with Jun Zhu), 2019-2021, Goldman Sachs
  • Selected Awards

    Teaching

    • Linear Algebra (for Computer Science and Technology) (Undergraduate, Autumn, since 2025)
    • Deep Generative Models: Principles and Applications, Online Videos, Slides (Graduate, Spring, since 2022)
    • Probability and Randomized Algorithms (Graduate, Autumn, since 2021)
    • Probabilistic Graphical Models: Principles and Applications (Undergraduate, Spring, 2023-2025)

    Book Chapter

    • 大模型十讲(主编),机械工业出版社,2025年9月
    • 可解释人工智能导论(第二章 贝叶斯方法),电子工业出版社,2022年4月

    Service

    • Associate Editor: IEEE TPAMI
    • Action Editor: TMLR, Machine Learning Journal, 软件学报
    • Area Chair: ICML, ICLR, NeurIPS
    • Reviewer: Nature Communications
    Last update on Jun. 2026. Special thanks to Chao Du and Jiajun Wu for the style files.