Jiazi Bu 卜家梓

I am a 1st year Ph.D. student and research intern at Shanghai Artificial Intelligence Laboratory, advised by Prof. Dahua Lin. I received the B.Eng. degree in Artificial Intelligence (GuoZhi Class Programme, held by Prof. Xiaoou Tang and Prof. Cewu Lu) from Shanghai Jiao Tong University (SJTU). Moreover, I have also worked with Prof. Junchi Yan at SJTU-ReThinkLab.

My current research focuses on 2D AIGC and VLM. Prior to that, I worked on Computer Vision and AI4Science.

I am seeking for a joint Ph.D. position from 2026 fall.

🔥 News

2025-09: Begin my Ph.D. at Shanghai Artificial Intelligence Laboratory.

2025-09: 1 paper accepted to NeurIPS 2025 (as First Author).

2025-06: My Bachelor's Thesis is awarded the Best Bachelor's Thesis of SJTU.

2025-06: I receive an additional Zhiyuan Honor Bachelor's Degree from SJTU.

2025-06: I receive my B.Eng. Degree from SJTU (as one of TOP 30 Outstanding Graduates).

2025-06: 1 paper accepted to ICCV 2025 (as Co-First Author).

2025-02: 1 paper accepted to CVPR 2025 (as First Author).

2025-01: 1 paper accepted to ICLR 2025 (as Co-First Author).

2025-01: 1 paper accepted to SCIENCE CHINA Information Sciences.

2024-09: 1 paper accepted to NeurIPS 2024.

2023-11: 1 paper accepted to AAAI 2024.

2023-11: I receive National First Prize & First Prize in Shanghai Chapter in CUMCM 2023.

2021-08: I enter Shanghai Jiao Tong University (SJTU) as an undergraduate student.

🥇 (Co-) First Author Publications

HiFlow: Training-free High-Resolution Image Generation with Flow-Aligned Guidance
Jiazi Bu*, Pengyang Ling*, Yujie Zhou*, Pan Zhang, Tong Wu, Xiaoyi Dong, Yuhang Zang, Yuhang Cao, Dahua Lin, Jiaqi Wang
NeurIPS 2025
Page / Paper / Code

ByTheWay: Boost Your Text-to-Video Generation Model to Higher Quality in a Training-free Way
Jiazi Bu*, Pengyang Ling*, Pan Zhang, Tong Wu, Xiaoyi Dong, Yuhang Zang, Yuhang Cao, Dahua Lin, Jiaqi Wang
CVPR 2025
Page / Paper / Code

DiCache: Let Diffusion Model Determine Its Own Cache
Jiazi Bu*, Pengyang Ling*, Yujie Zhou*, Yibin Wang, Yuhang Zang, Tong Wu, Dahua Lin, Jiaqi Wang
arXiv 2025
Page / Paper / Code

MotionClone: Training-Free Motion Cloning for Controllable Video Generation
Pengyang Ling*, Jiazi Bu*, Pan Zhang, Xiaoyi Dong, Yuhang Zang, Tong Wu, Huaian Chen, Jiaqi Wang, Yi Jin
ICLR 2025
Page / Paper / Code

Light-A-Video: Training-free Video Relighting via Progressive Light Fusion
Yujie Zhou*, Jiazi Bu*, Pengyang Ling*, Pan Zhang, Tong Wu, Qidong Huang, Jinsong Li, Xiaoyi Dong, Yuhang Zang, Yuhang Cao, Anyi Rao, Jiaqi Wang, Li Niu
ICCV 2025
Page / Paper / Code

Fine-Grained GRPO for Precise Preference Alignment in Flow Models
Yujie Zhou*, Pengyang Ling*, Jiazi Bu*, Yibin Wang, Yuhang Zang, Jiaqi Wang, Li Niu, Guangtao Zhai
arXiv 2025
Page / Paper / Code

🥈 Co-Author Publications

UniGenBench++: A Unified Semantic Evaluation Benchmark for Text-to-Image Generation
Yibin Wang*, Zhimin Li*, Yuhang Zang*, Jiazi Bu, Yujie Zhou, Chunyu Wang, Qinglin Lu, Cheng Jin, Jiaqi Wang
arXiv 2025
Page / Paper / Code

Pref-GRPO: Pairwise Preference Reward-based GRPO for Stable Text-to-Image Reinforcement Learning
Yibin Wang*, Zhimin Li*, Yuhang Zang*, Yujie Zhou, Jiazi Bu, Chunyu Wang, Qinglin Lu, Cheng Jin, Jiaqi Wang
arXiv 2025
Page / Paper / Code

Drug-drug Interaction Prediction via Hierarchical Structure Modeling
Huaijin Wu, Jiazi Bu, Nianzu Yang, Yao Sun, Haitao Song, Ning Liu, Junchi Yan
SCIENCE CHINA Information Sciences
Paper / Code

🥉 Technical Reports

🏆 Honors and Awards

2025: Ye Jun and Shen Nanpeng Outstanding Scholarship ￥20000 (Top 30 Graduates)
2022: Guozhi Scholarship ￥8000
2021~2024: Zhiyuan Scholarship ￥5000 × 4
2022~2025: SJTU Undergraduate Scholarship × 4
2023: CUMCM National First Prize (Top 0.55%) & First Prize in Shanghai Chapter
2025: SJTU Zhiyuan Honor Bachelor's Degree
2023: SJTU President Award
2021: SJTU Outstanding Freshman Training Camp Member
2025: SJTU Outstanding Graduate
2025: SJTU Outstanding Bachelor's Thesis of School of Computer Science
2025: SJTU Best Bachelor's Thesis (Top 1%)

🖥️ Selected Services

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