Zihan Liu

Zihan Liu

Senior Research Scientist at Nvidia. Working on chat models, RAG, retrieval and multimodal.

About me

I am Zihan Liu (刘子涵). I am a Senior research scientist at Nvidia Applied Deep Learning Research (ADLR) Team. I received Bachelor Degree from Zhejiang University, and Ph.D. Degree from the Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology under the supervision of Prof. Pascale Fung in Center of AI Research. I work on LLMs reasoning, post-training, and RAG.

Highlights

  • [2025/05] AceReason-Nemotron: Advanced LLM reasoning models on Math and Code.
  • [2024/12] AceMath: Frontier math reasoning models.
  • [2024/09] NVLM: Open Frontier-Class Multimodal LLMs.
  • [2024/09] ChatQA-2: Long Context (128K) RAG model.
  • [2024/07] RankRAG: SoTA RAG model with rerank.
  • [2024/05] ChatQA-1.5: Surpassing GPT-4 on Conversational QA and RAG.

Please feel free to contact me via email.