Xingyang Li

I am an incoming PhD student at MIT EECS, advised by Prof. Song Han. I graduated from ACM Honors Class, Shanghai Jiao Tong University in 2026 with a B.Eng. in Computer Science (summa cum laude). I work on efficient algorithms and systems for deep learning applications, particularly generative AI.

During my undergraduate studies, I was very fortunate to work with Prof. Yu Feng and Prof. Guohao Dai.

News [Show All]

• [2026/08] Sang tenor with the SJTU Student Choir at the 14th World Choir Games in Helsingborg, Sweden. We won two gold medals in the Champions Competition (C6 Mixed Choirs and C13 Contemporary Music), and our 90.50 points in Mixed Choirs set a new national record for Chinese mainland adult mixed choirs (SJTU News).
• [2026/06] I graduated from ACM Honors Class, Shanghai Jiao Tong University with a B.Eng. in Computer Science.
• [2026/06] I wrote and released a graduation song, "再见了再见了" (Farewell, Farewell). Hope you enjoy it!
• [2026/04] "FourTune: Towards Fully 4-Bit Efficient Post-Training for Diffusion Models" and "Quant VideoGen: Auto-Regressive Long Video Generation via 2-Bit KV-Cache Quantization" are accepted to ICML'26.
• [2025/11] "Nebula: Enable City-Scale 3D Gaussian Splatting in Virtual Reality via Collaborative Rendering and Accelerated Stereo Rasterization" is accepted to ASPLOS'26 as an oral presentation.
• [2025/10] I gave a talk about sparse attention and quantization algorithms for diffusion models at Harvard SEAS, hosted by Prof. Juncheng Yang.
• [2025/09] "Radial Attention: O(nlogn) Sparse Attention with Energy Decay for Long Video Generation" is accepted to NeurIPS'25.
• [2025/09] I gave a talk about Radial Attention and Nunchaku at UW Systems Lab, hosted by Prof. Baris Kasikci.
• [2025/07] I started my on-site research internship at MIT HAN Lab in MIT. Feel free to reach out!
• [2025/07] "SLTarch: Towards Scalable Point-Based Neural Rendering by Taming Workload Imbalance and Memory Irregularity" is accepted to ICCAD'25.
• [2025/04] "Our final paper of the course Computer Vision KETA: Kinematic-Phrases-Enhanced Text-to-Motion Generation via Fine-grained Alignment" is accepted to IJCNN'25.
• [2025/02] "Harnessing Conventional Video Processing Insights for Emerging 3D Video Generation Models: A Comprehensive Attention-aware Way" is accepted to DAC'25.
• [2025/02] I became the teaching assistant of the course Machine Learning (CS3308@SJTU, 2025 Spring), taught by Prof. Weinan Zhang.
• [2024/07] Sang with SJTU Student Choir in World Choir Games 2024 in Auckland, New Zealand. We earned two gold medals and one area championship!
• [2024/02] I became the teaching assistant of the course Mathematical Logic (CS2950@SJTU, 2024 Spring), taught by Prof. Qiang Yin.
• [2023/09] I became the teaching assistant of the course Programming (CS1953@SJTU, 2023 Fall).
• [2022/08] I was admitted to ACM Honors Class, Zhiyuan College, Shanghai Jiao Tong University.

Education

Massachusetts Institute of Technology, USA

Incoming PhD Student, EECS • 2026 -

Advisor: Prof. Song Han

Massachusetts Institute of Technology, USA

Student Research Intern • Jul. 2025 - Dec. 2025

Advisor: Prof. Song Han

Shanghai Jiao Tong University, China

B.Eng. in Computer Science • Sept. 2022 - June 2026, summa cum laude

Member of ACM Honors Class (Top 5% students with interest in research)

GPA: 4.06/4.3, Rank: 4/30

Advisor: Prof. Yong Yu

Selected Publications

* indicates equal contribution

FourTune: Towards Fully 4-Bit Efficient Post-Training for Diffusion Models Bowen Xue*, Zihan Min*, Xingyang Li*, Muyang Li, Yujun Lin, Zhekai Zhang, Haocheng Xi, Lvmin Zhang, Maneesh Agrawala, Jun-Yan Zhu, Song Han ICML 2026 / arXiv / ICML page

Quant VideoGen: Auto-Regressive Long Video Generation via 2-Bit KV-Cache Quantization Haocheng Xi*, Shuo Yang*, Yilong Zhao, Muyang Li, Han Cai, Xingyang Li, Yujun Lin, Zhuoyang Zhang, Jintao Zhang, Xiuyu Li, Zhiying Xu, Jun Wu, Chenfeng Xu, Ion Stoica, Song Han, Kurt Keutzer ICML 2026 / arXiv / Website / Code

DeltaQuant: 4-bit Video Diffusion Models with Spatiotemporal Delta Smoothing Xingyang Li, Samuel Tesfai, Zhekai Zhang, Haocheng Xi, Shuo Yang, Lvmin Zhang, Yufei Sun, Kelly Peng, Maneesh Agrawala, Ion Stoica, Kurt Keutzer, Jun-Yan Zhu, Song Han, Yujun Lin, Muyang Li CVPR 2026 / CVPR page / Paper

Radial Attention: O(nlogn) Sparse Attention with Energy Decay for Long Video Generation Xingyang Li*, Muyang Li*, Tianle Cai, Haocheng Xi, Shuo Yang, Yujun Lin, Lvmin Zhang, Songlin Yang, Jinbo Hu, Kelly Peng, Maneesh Agrawala, Ion Stoica, Kurt Keutzer, Song Han NeurIPS 2025 / arXiv / Code (500+ stars) / Website / Blog

Nebula: Enable City-Scale 3D Gaussian Splatting in Virtual Reality via Collaborative Rendering and Accelerated Stereo Rasterization He Zhu, Zheng Liu, Xingyang Li, Anbang Wu, Jieru Zhao, Fangxin Liu, Yiming Gan, Jingwen Leng, Yu Feng ASPLOS 2026 (Oral Presentation) / arXiv

SLTarch: Towards Scalable Point-Based Neural Rendering by Taming Workload Imbalance and Memory Irregularity Xingyang Li*, Jie Jiang*, Yu Feng, Yiming Gan, Jieru Zhao, Zihan Liu, Jingwen Leng, Minyi Guo ICCAD 2025 (Oral Presentation) / arXiv

Harnessing Conventional Video Processing Insights for Emerging 3D Video Generation Models: A Comprehensive Attention-aware Way Tianlang Zhao*, Jun Liu*, Xingyang Li*, Li Ding, Jinhao Li, Shuaiheng Li, Jinbo Hu, Guohao Dai DAC 2025 (Oral Presentation) / paper

Teaching Experience

• Teaching Assistant for Machine Learning (02/2025 – 06/2025)
• Teaching Assistant for Mathematical Logic (02/2024 – 06/2024)
• Teaching Assistant for Programming (09/2023 – 02/2024)

Role: giving lectures and recitation classes, writing documents and sample solutions, grading homework, creating exam questions, designing ML-related final project lists

Selected Honors & Awards

• 2026 Outstanding Graduate of Shanghai Award (for top undergraduate graduates in Shanghai)
• 2025 SenseTime Scholarship (30 winners nationwide with aspiration in AI research)
• 2025 SJTU Merit Student (Top 2% at SJTU)

Miscellaneous

• Wrote and released a graduation song, "再见了再见了" (Farewell, Farewell), June 2026.
• Tenor in SJTU Student Choir, won four gold medals in the Champions Competition of the World Choir Games — Helsingborg 2026, where our 90.50 points in Mixed Choirs became the highest score ever earned by a Chinese mainland adult mixed choir, and Auckland 2024, which also brought an area championship. Also won first prize in National College Students' Art Performance, and a quite widespread Zhi-Yin-Ni-Tai-Mei variation on Bilibili.
• Football enthusiast and team captain, led ACMClass2022 to win department championship three times in a row.