2^127-1

Xiao Zhang

I am a software engineer at Google Cloud and a research collaborator at Vector Institute. I earned my bachelor's degree from the University of Toronto Engineering Science program, majoring in Machine Intelligence, and I continue to work with Prof. Zhijing Jin.

My research interests lie in multi-agent systems, interpretability, and understanding how and why AI and LLM agents behave in particular ways. Currently, I am working on evaluating Gmail AI agent quality at Google and building cooperative mechanisms for LLM agents.

Portrait of Xiao Zhang

Experience

My career journey.

Current

Google

Software Engineer

Current

Vector Institute

Research Collaborator

Experience

Google

Software Engineer Intern

Research

Publications and research work.

ICML 2026 PosterarXiv:2604.15267

CoopEval: Benchmarking Cooperation-Sustaining Mechanisms and LLM Agents in Social Dilemmas

Emanuel Tewolde, Xiao Zhang, David Guzman Piedrahita, Vincent Conitzer, Zhijing Jin

A benchmark and comparative study of mechanisms that help capable LLM agents sustain cooperation in mixed-motive games.

Topics: LLM agents / Game theory / Social dilemmas