Zangwei Zheng

郑ε₯˜ε·, Ph.D.

Full Stack Developer & AI Researcher Tech Lead at HPC-AI Tech

ZZ

About

Hi, I'm ZangweiπŸ‘‹, founder of Open-Sora and Video-Ocean. I'm working on AI-powered video generation and SaaS products that bridge research and real-world creativity.

I earned my Ph.D. from NUS Logo National University of Singapore (NUS), advised by Prof. Yang You. I had my research intern in Bytedance Logo Bytedance, mentored by Xuan Zhou and Youlong Cheng. I received my B.Sc. in Computer Science from NJU Logo Nanjing University (NJU). I worked remotely as a research intern at UC Berkeley Logo UC Berkeley for a year, mentored by Dr. Xiangyu Yue and Prof. Alberto L. Sangiovanni-Vincentelli. You can find more about my background in my CV.

πŸ”¬ Research Interests: Video Generation, Efficient ML and DL (Deep Learning) Optimization.

Latest News

2025.10

New homepage zangwei.dev launched! Welcome to visit!

πŸŽ‰ nextjs-portfolio-blog-research template for this site is also available on GitHub. On click and deploy your own homepage in minutes.

2025.8

🌊 Video-Ocean Agent is now online! Generate videos up to minutes with a few clicks.

2025.5

Ph.D. Graduated

πŸŽ“ Graduated from HPC-AI Lab @ NUS. Thanks to my supervisor and friends' help! Congratulations to myself!

2025.3

Open-Sora 2.0 GitHub Repo stars Released!

πŸš€ Despite constrained computational resources, it achieves Sora-level metrics, fulfilling our goal of providing an open-source implementation of Sora.

2024.9

Paper Accepted (MSIER, EMNLP 2024)

πŸ“˜ Got one paper accepted to EMNLP 2024. Congratulations to Yang Luo!

Selected Projects

Check out my latest work

Video-Ocean Video Agent

Video-Ocean Video Agent generates videos up to minutes with a few clicks, including voice and face.

Open-Sora [![GitHub Repo stars](https://img.shields.io/github/stars/hpcaitech/Open-Sora?style=social)](https://github.com/hpcaitech/Open-Sora)

Open-Sora GitHub Repo stars

The world’s first open-source Sora-like video generation model β€” bringing efficient, high-quality video production to everyone.

Video-Ocean [![Video Ocean v2.0 – #1 Product of the Day (Apr 12, 2025)](https://img.shields.io/badge/Product%20Hunt-%231%20of%20the%20Day-ff6154?logo=producthunt&logoColor=white)](https://www.producthunt.com/products/video-ocean-v2-0)

Video-Ocean Video Ocean v2.0 – #1 Product of the Day (Apr 12, 2025)

Video-Ocean is a video generation platform that allows you to generate videos, images and audios with state-of-the-art models.

Research

Selected Publications

View the full list of my publications on Google Scholar

CowClip Optimizer ![AAAI Distinguished Award](https://img.shields.io/badge/AAAI-Distinguished%20Paper%20Award-ff3557?logo=ai&logoColor=white&style=flat-square)

CowClip Optimizer AAAI Distinguished Award

An optimizer that can train CTR prediction models with large batch (~128k)

Authors: Zangwei Zheng, Pengtai Xu, Xuan Zou, Da Tang, Zhen Li, Chenguang Xi, Peng Wu, Leqi Zou, Yijie Zhu, Ming Chen, Xiangzhuo Ding, Fuzhao Xue, Ziheng Qin, Youlong Cheng, Yang You

Rec
Optim
CAME Optimizer ![ACL Outstanding Paper Award](https://img.shields.io/badge/ACL-Outstanding%20Paper%20Award-ff3557?logo=ai&logoColor=white&style=flat-square)

CAME Optimizer ACL Outstanding Paper Award

We introduce CAME, a confidence-guided optimizer that combines the fast convergence of adaptive methods with the low memory footprint of memory-efficient ones.

Authors: Yang Luo, Xiaozhe Ren, Zangwei Zheng, Zhuo Jiang, Xin Jiang, Yang You

LLM
Optim
MERIT Optimizer

MERIT Optimizer

MERIT constructs element-wise trust ratios to enable more robust update scaling by focusing on local weight structures.

Authors: Yang Luo, Zangwei Zheng, Ziheng Qin, Zirui Zhu, Yong Liu, Yang You

LLM
Optim
Dynamic Sequence Parallelism

Dynamic Sequence Parallelism

A novel, elegant and super efficient sequence parallelism for multi-dimensional transformer architecture.

Authors: Xuanlei Zhao, Shenggan Cheng, Chang Chen, Zangwei Zheng, Ziming Liu, Zheming Yang, Yang You

VideoGen
MLSys
InfoBatch: Dataset Pruning on the Fly

InfoBatch: Dataset Pruning on the Fly

InfoBatch accelerates model training by pruning easy samples and reweighting losses, achieving up to 40% faster training without sacrificing accuracy across diverse tasks.

Authors: Ziheng Qin, Kai Wang, Zangwei Zheng, Jianyang Gu, Xiangyu Peng, Zhaopan Xu, Daquan Zhou, Lei Shang, Baigui Sun, Xuansong Xie, Yang You

Efficient ML
CV
OpenMoE [![GitHub Repo stars](https://img.shields.io/github/stars/XueFuzhao/OpenMoE?style=social)](https://github.com/XueFuzhao/OpenMoE)

OpenMoE GitHub Repo stars

OpenMoE is a project aimed at igniting the open-source MoE community! We are releasing a family of open-sourced Mixture-of-Experts (MoE) Large Language Models.

Fuzhao Xue, Zian Zheng, Yao Fu, Jinjie Ni, Zangwei Zheng, Wangchunshu Zhou, Yang You

LLM
MoE
Pre-training

Skills

Python
PyTorch
TensorFlow
ColossalAI
vLLM
LangGraph
OpenAI API
FastMCP
FastAPI
PostgreSQL
TypeScript
React
Next.js
Docker
Terraform
GitHub Actions
GitLab CI/CD
Grafana
Vercel
Figma
Cursor
C/C++
FFmpeg

Awards & Honors

Awards & Honors

2023

Research Achievement Award of NUS

2023

ACL 2023 Outstanding Paper Award

2023

AAAI 2023 Distinguished Paper Award

2022

Papers with Code Contributor Award

2021

Outstanding Graduates of Nanjing University

Academic Services

Reviewer of Conferences:
NeurIPS
ICLR
CVPR
ECCV
AAAI
Reviewer of Journals:
Pattern Recognition
TIP
TSMC-S
Teaching Assistant:
Fall 2022

CS5242: Neural Networks and Deep Learning

National University of Singapore
Fall 2020

Algorithm Analysis & Design

Nanjing University

Invited Talks

N

National University of Singapore

2025.11

From Video Generation to Commercial Agents

N

Nvidia, invited by Yuyang Zhao

2025.03

Efficient Training with Open-Sora

N

National University of Singapore

2024.03

Video Generation Model

Contact

Get in Touch

Want to chat? Feel free to reach out via email β†’

  • β€’ Ask questions
  • β€’ Explore collaboration opportunities
  • β€’ 15-minute coffee chat (Schedule)
Fun Facts

Did you know?

A few interesting things about me

AI Tools

The AI models and services I use are handpicked for their performance and reliability.

Generalβ€’GPT-5.1
Codeβ€’Gemini 3 + Cursor (Auto)
Imageβ€’Seedream-4 + Nano Banana Pro
Videoβ€’Seedance

Academic Lineage

I am a 18th-generation academic descendant of Isaac Newton! From Newton to the present β€” a centuries-long mentorship chain spanning over 350 years.

Family Lineage

I am a 99th-generation descendant of You Ji (姬友), Duke Huan of Zheng (郑摓公) from ~800 BC! My family lineage spans over 2,800 years of Chinese history, from ancient Zhou dynasty to the present.

Values

MBTI Β· ENTJ-A
Principles Β· Science for research, product and decision-making. (Falsifiability, Reproducibility, Evaluability, Iterability)
Belief Β· Efficiency, Open-mindedness and Awareness of power-law dynamics
Ethos Β· Evolution and Aufheben
Goal Β· Modularize complex processes to empower individuals
Dream About Β· In the distant sweep of millions of years, might humanity evolve a social architecture that liberates itself from the power-law fate of how resources flow?

Website Analytics

Loading website statistics...