Yifei Li

I'm currently pursuing PhD in the Department of Automation at Tsinghua University, advised by Prof. Jiwen Lu and Prof. Yu Qiao. My research interests include Multi-Modal Large Language Models(MLLMs), Video-Large Language Models(Video-LLMs) and Streaming Video Understanding.

Email / Google Scholar / Github

Recent News

[2026.02] Skyra & UniGenDet accepted to CVPR 2026.

[2025.02] OVO-Bench accepted to CVPR 2025.

Publications

* indicates equal contributions.

	OVO-S-Bench: A Hierarchical Benchmark for Streaming Spatial Intelligence in Multimodal LLMs Yifei Li, Pengyiang Liu, Yuhang Zang, Zhongyue Shi, Qi Fu, Hongye Hao, Jiwen Lu arXiv preprint, 2026 project page / paper / code
	Skyra: AI-Generated Video Detection via Grounded Artifact Reasoning Yifei Li, Wenzhao Zheng, Yanran Zhang, Yu Zheng, Lei Chen, Jie Zhou, Jiwen Lu CVPR, 2026 project page / paper / code
	OVO-Bench: How Far is Your Video-LLMs from Real-World Online Video Understanding? Yifei Li, Junbo Niu, Ziyang Miao, Chunjiang Ge, Yuanhang Zhou, Qihao He, etc. Jiaqi Wang CVPR, 2025 project page / paper / code

Participated Projects

	UniGenDet: A Unified Generative-Discriminative Framework for Co-Evolutionary Image Generation and Generated Image Detection Yanran Zhang, Wenzhao Zheng, Yifei Li, Bingyao Yu, Yu Zheng, Lei Chen, Jie Zhou, Jiwen Lu CVPR, 2026 project page / paper / code
	Internlm-xcomposer2. 5-omnilive: A comprehensive multimodal system for long-term streaming video and audio interactions Pan Zhang, Xiaoyi Dong, Yuhang Cao, Yuhang Zang, Rui Qian, Xilin Wei, Lin Chen, Yifei Li,etc. Jiaqi Wang ACL Findings, 2025 project page / paper / code

Experiences

	Tsinghua University, IVG-Group, Department of Automation September 2024 - Present Video-LLMs & AIGC Detection PhD Advisor: Jiwen Lu
	Shanghai AI laboratory, Large Model Center July 2024 - Present Video-LLMs & Online Video Understanding Research Intern Advisor: Jiaqi Wang
	Tsinghua University, Department of Automation September 2021 - 2025 Undergraduate Student

Academic Services

Conference Reviewer: CVPR, ECCV
Journal Reviewer: IJCV, TMM

Stolen from Jon Barron