
Yingchen Xu
I study how agents learn models of the world to reason, plan, and generalize from limited experience. My work spans world models, deep reinforcement learning, and LLM reasoning.

About
I completed my PhD in Computer Science at UCL’s DARK Lab (now part of BOLD), advised by Edward Grefenstette and Tim Rocktäschel. I spent four years at FAIR London, working with Yuandong Tian, Matteo Pirotta, and Alessandro Lazaric, and worked on active-vision world models with Luke Darlow at Sakana AI.
Previously, I studied CS and Math at Rice University, working with Anshumali Shrivastava and Beidi Chen. I also worked as an ML engineer at Airbnb and explored computational cognitive science with Tobias Gerstenberg at Stanford’s Causality in Cognition Lab.
Publications
* Equal contribution.





ICLR 2024 Spotlight
H-GAP: Humanoid Control with a Generalist Planner




Cognitive Science 2022