Bio

Hao Zhang is an Assistant Professor in Halıcıoğlu Data Science Institute and the Department of Computer Science and Engineering at UC San Diego. Before joining UCSD, Hao was a postdoctoral researcher at UC Berkeley working with Ion Stoica (2021 - 2023). Hao completed his Ph.D. in Computer Science at Carnegie Mellon University with Eric Xing (2014 - 2020). During his PhD, Hao took a leave to work for the ML platform startup Petuum Inc (2016 - 2021). Hao's research interest is in the intersection of machine learning and systems. Hao's work includes FastVideo, DistServe, vLLM, Chatbot Arena, Vicuna, Alpa, Poseidon, and Petuum. Hao's research has been recognized with a Sloan Research Fellowship (2026), a Google ML and Systems junior faculty award (2025), the Jay Lepreau Best Paper Award at OSDI'21, and an NVIDIA Pioneer Research Award at NeurIPS'17. Hao was nominated for MIT TR35 (China) 2024. Hao also cofounded the company LMNet.ai (2023) which was acquired by Snowflake, and the nonprofit LMSYS Org (2023) which maintains many popular open models, evaluation, and systems.