Haitang Hu^_PDF

Member of Technical Staff @ OpenAI

gmail: nero.hu2011 at gmail dot com

GPG: key-file, web.

Last updated: June 2025

OpenAI Work

• Post Training Infra
  • GPT 4.5
  • GPT 4.1
  • GPT 4o
  • RL framework/Infra
• Multimodal
  • Advanced Voice Mode
  • Encoder/Decoders
• GPT 4o/4o-mini
• GPT 4Turbo

Google Work

• Inference
  • Vertex AI serving
  • Gmail/Doc
• ML Infra
  • T5X, PaxML
  • Orbax
  • TensorFlow DTensor
• Gmail/Google Voice backend

Educations

2014-2016, M.S.E, Computer Science@JHU.

2007-2011, B.E., Tongji University

MISC

• My personal wiki keeps several useful materials for Machine Learning, feel free to browse and read.

• PRML and Statistical Method for Speech Recognition are by far the best books I have ever read!

• Jason Bourne series are my favorite movies!