About Me
I am a Ph.D. student at University of Texas at Austin (UT Austin). I am honored to be advised by
Prof. Qiang Liu.
I will be graduating in 2026 and am actively seeking full-time positions in industry.
I am interested in developing fundamental yet computationally feasible algorithms for the basic learning, inference,
and optimization problems that underpin the cutting-edge AI/ML/statistical technologies.
These days, I am mostly drawn by the training efficiency of large-scale models.
If you share common interests, are interested in potential collaboration, or simply want to connect for a chat, feel free to contact me. I'm always open to conversation :)
Highlights
Core contributor to
DeMo, the optimizer foundation behind
Nous Research's distributed-training stack, used to train the
Hermes model series.
Set the
current world record on
Slowrun, the leaderboard for language modeling in the fixed-data, unlimited-compute regime;
my submission has held the best validation loss on the benchmark for over a month.
Andrej Karpathy on using
Cautious Weight Decay in
nanochat:
"Worked great out of the box on nanochat too, beat standard weight decay in a solid sweep."
Hugging Face
timm adopted
Cautious Optimizers. Ross Wightman:
"One of the last minute papers I added support for that delayed this release was 'Cautious Optimizers'... Consider me impressed, this boost appears more consistent than some of the new optimizers."
Contributing to
google-deepmind/simply, DeepMind's minimal and scalable JAX research codebase for frontier LLM research.
Selected Publications & Preprints
Lizhang Chen, Jonathan Li, Kaizhao Liang, Baiyu Su, Cong Xie, Nuo Wang Pierse, Chen Liang, Ni Lao, Qiang Liu
ICLR 2026
Kaizhao Liang*, Lizhang Chen*, Bo Liu, Qiang Liu
ICLR 2026
Bowen Peng, Lizhang Chen, Baiyu Su, Jeffrey Quesnelle, Diederik P. Kingma, Qiang Liu
ICLR 2026
Lizhang Chen, Jonathan Li, Qiang Liu
TMLR; Oral, OPT@NeurIPS 2025
Lizhang Chen*, Bo Liu*, Kaizhao Liang*, Qiang Liu
Spotlight, ICLR 2024
Lizhang Chen*, Bo Liu*, Lemeng Wu*, Kaizhao Liang, Jiaxu Zhu, Chen Liang, Raghuraman Krishnamoorthi, Qiang Liu
NeurIPS 2024
Kaizhao Liang, Bo Liu, Lizhang Chen, Qiang Liu
NeurIPS 2024