I am a Research Engineer working on foundation models at Kling AI, Kuaishou Technology. I received my Ph.D. in Fluid Mechanics from Peking University in 2020 under the supervision of Prof. Yue Yang, and was named an Outstanding Graduate. Admitted to Peking University through the Chinese Physics Olympiad (CPhO), I earned B.S. degrees in Mechanics and Economics in 2015.

I joined Kuaishou through its KuaiStar Top Talent Program in 2020 and have received top performance ratings for five consecutive years. I have end-to-end experience training hundred-billion-parameter foundation models and have published 15+ papers at leading venues, including ICML, CVPR, ECCV, and AAAI. My research interests include agentic coding LLMs, video generation models, and Physical AI and embodied intelligence, building on my earlier work in image/video processing, restoration, and enhancement.

现任快手可灵 AI 大模型算法工程师。本科(CPhO 物理竞赛保送)和博士(优秀毕业生)毕业于北京大学,2020 年通过快Star顶尖人才计划加入快手,连续五年取得 Top 绩效。具备千亿参数大模型全链路训练经验,在 ICML、CVPR、ECCV、AAAI 等顶级会议发表论文 15+ 篇。目前主要关注 Agentic Coding 大语言模型、视频生成模型,以及 Physical AI 与具身智能,此前研究涵盖图像/视频处理与增强。

News

  • 2026.07: KAT-Coder-Pro V2.5, a trillion-parameter-scale coding LLM with performance approaching GLM-5.2 and Claude Opus 4.8, was released. Its lightweight variant, KAT-Coder-V2.5-Dev, was open-sourced at the same time; the broader model ecosystem has accumulated over 400K downloads and drawn strongly positive feedback from the community.
  • 2026.06: One paper accepted to ECCV 2026.
  • 2026.05: One paper accepted to ICML 2026.
  • 2026.03: KAT-Coder-Pro V2 released, ranked Top 10 on the Artificial Analysis Coding Index.
  • 2026.02: Two papers accepted to CVPR 2026, one selected as Highlight.
  • 2025.05: One paper accepted to ICML 2025.
  • 2025.01: One paper accepted to AAAI 2025.
  • 2024.07: Two papers accepted to ECCV 2024.
  • 2024.02: Two papers accepted to CVPR 2024.

Models

KAT-Coder-V2.5-Dev

17,399 model all-time downloads
420,630 total all-time downloads including derived models
523 likes
Hugging Face

A lightweight 35B-A3B MoE variant of KAT-Coder-V2.5, built for long-horizon agentic coding.

  • Agentic coding: 69.4% on SWE-bench Verified and 93.4% on PinchBench.
  • Long-context: native support for up to 1M tokens for longer-context serving.
  • Reliable tool use: fewer malformed tool labels and repetitive single-turn behaviors.
KAT-Coder-V2.5
KAT-Coder-V2.5 teaser

KwaiKAT Team, Kuaishou Technology

Paper News

  • KAT-Coder-V2.5 achieves 65.2% on SWE-bench Pro (vs. Claude Opus 4.8 at 69.2%), 94.2% on PinchBench (vs. Claude Opus 4.8 at 93.5%)
  • KAT-Coder-V2.5 surpassing GLM-5.1, approaching GLM-5.2
KAT-Coder-V2
KAT-Coder-V2 teaser

KwaiKAT Team, Kuaishou Technology

Paper News

  • KAT-Coder-V2 ranks 6th on Artificial Analysis Coding Index
  • KAT-Coder-V2 achieves 79.6% on SWE-bench Verified (vs. Claude Opus 4.6 at 80.8%); 88.7% on PinchBench (surpassing GLM-5 and MiniMax M2.7)
LPM
LPM teaser

LPM Team, Kuaishou Technology

Paper

  • Large Processing Model (LPM) is a diffusion-based generative framework for photorealistic video restoration
  • To our knowledge, LPM is the first generative video restoration model deployed at industrial scale

Publications

* denotes corresponding author; † denotes project leader.

arXiv 2026
Agentic TTT teaser

No Time Like the Present: Agentic Test-Time Training for LLM Agents

Yanbo Wang, Jinhua Hao*, Yuze Shi, Kun Yuan, Ming Sun

arXiv 2026 Paper

arXiv 2026
MMG2Skill teaser

MMG2Skill: Can Agents Distill In-the-Wild Guides into Self-Evolving Skills?

Xinyu Che, Junqi Xiong, Yunfei Ge, Xinping Lei, Shihao Li, Hang Yan, Han Li, Yuanxing Zhang, Zhiqi Bai, Jinhua Hao, Ming Sun, Han Li, Jiaheng Liu

arXiv 2026 Paper

arXiv 2026
WebCompass teaser

WebCompass: Towards Multimodal Web Coding Evaluation for Code Language Models

Xinping Lei, Xinyu Che, Junqi Xiong, Chenchen Zhang, Yukai Huang, Chenyu Zhou, Haoyang Huang, Minghao Liu, Letian Zhu, Hongyi Ye, Jinhua Hao, et al.

arXiv 2026 Paper Code

Competitions

Projects

  • 2026.07: 研发并上线代码大语言模型 KAT-Coder-V2.5,性能接近 GLM-5.2 和 Claude Opus 4.8;同步开源轻量版 KAT-Coder-V2.5-Dev,主模型及其衍生版本累计下载量突破 40 万,获得了积极的社区反馈。Developed and deployed KAT-Coder-V2.5, a coding LLM with performance approaching GLM-5.2 and Claude Opus 4.8, and open-sourced its lightweight variant, KAT-Coder-V2.5-Dev. Cumulative downloads across the open-weight model and its derivatives surpassed 400K, and the release received positive community feedback. Hugging Face News
  • 2026.03: 研发并上线大语言模型 KAT-Coder V2,在 Artificial Analysis Coding Index 中位列全球第六、国产模型第一(截至 2026 年 3 月 31 日)。Developed and deployed KAT-Coder V2, an agentic coding LLM that ranked sixth globally and first among Chinese models on the Artificial Analysis Coding Index (as of March 31, 2026). News
  • 2025.08: 研发并上线生成式视频处理大模型 LPM,在保持保真度的同时提升视频清晰度并生成纹理细节,取得带宽效率与用户观看时长的双重收益。Developed and deployed LPM, a diffusion-based generative video processing model that improves video clarity and generates texture detail while preserving fidelity, delivering gains in both bandwidth efficiency and user watch time. News
  • 2023.01: 研发并上线服务端预处理算法,将低质视频智能重塑为高清输出,提升用户观看体验和整体 QoE。Developed and deployed server-side preprocessing algorithms that intelligently restore low-quality videos to high-definition outputs, improving the viewing experience and overall QoE. News
  • 2022.07: 研发并上线移动端后处理算法,提升用户播放视频清晰度;面向 NPU/GPU 芯片优化算法,兼顾视觉效果与功耗。Developed and deployed on-device post-processing algorithms optimized for mobile NPU/GPU hardware, improving playback clarity while balancing visual quality and power efficiency. News
  • 2021.12: 研发并上线视频质量评估算法,实现对视频画质的多维度感知、理解与评估。Developed and deployed video quality assessment algorithms that analyze video quality across multiple perceptual dimensions. News

Honors

  • 2024, 2026: 快手优秀项目奖(2 次)Kuaishou Outstanding Project Award (twice)
  • 2023, 2024, 2025: 快手音视频个人荣誉奖(3 次)Kuaishou Audio and Video Outstanding Individual Award (three times)
  • 2023: 快手洛子峰奖(2 次)Kuaishou Lhotse Award (twice)
  • 2022, 2023: 快手乔戈里奖(2 次)Kuaishou Chogori Award (twice)
  • 2020: 快手“快Star”特别技术人才计划(Top 1%)Kuaishou “KuaiStar” Special Technical Talent Program (Top 1%)
  • 2020: 北京大学优秀毕业生(Top 1%)Peking University Outstanding Graduate (Top 1%)
  • 2015, 2016, 2017, 2019: 北京大学校长奖学金(Top 1%)Peking University President’s Scholarship (Top 1%)

Education

  • 2015.09 - 2020.06, Ph.D. in Fluid Mechanics, Peking University, Beijing.
  • 2011.09 - 2015.06, B.S. in Mechanics, Peking University, Beijing.