New project: SocioGenesis — leading a long-horizon LLM-agent organization testbed 🏙️
Started leading SocioGenesis, a long-horizon LLM-agent organization simulation, as a Together AI collaboration advised by Prof. Jiaxuan You and Shang Zhu.
☕️About Me
Hongyi Du is an incoming M.S. student and researcher at the University of Illinois Urbana-Champaign, advised by Prof. Jiaxuan You, Prof. Jiawei Han, and Prof. ChengXiang Zhai. His research centers on LLM multi-agent systems — spanning multi-agent communication protocols, self-evolving and organization-level agents, and graph-grounded agents. He is the first author of ProtocolBench (accepted to ICML 2026), which benchmarks LLM multi-agent communication protocols and introduces ProtocolRouter for adaptive protocol selection, and co-first author of MultiAgentBench (ACL 2025, 200+ citations). He currently leads SocioGenesis, a long-horizon LLM-agent organization testbed (a Together AI collaboration), and contributes to the UIUC ATLAS Moonshot on graph-grounded educational agents.
Interests
- LLM Multi-Agent Systems
- LLM-Agent Organizations & Self-Evolution
- Multi-Agent Communication Protocols
- Graph-Grounded Agents
Education
University of Illinois Urbana-Champaign
University of Illinois Urbana-Champaign
📚 My Research
I dive into the wild world of LLM multi-agent systems — communication protocols, self-evolving and organization-level agents, and graph-grounded agents — building plug-and-play frameworks where data, simulations, and evaluation metrics party together at scale.
Please reach out to collaborate! 🤝
Pinned Publications
Recent Publications
(2026).
Ψ-Bench: Evaluating Persona-Sensitive Influencing in Persuasive Dialogues.
Under review at EMNLP ‘26.
(2025).
Which LLM Multi-Agent Protocol to Choose?.
In ICML ‘26.
(2025).
ModelingAgent: Bridging LLMs and Mathematical Modeling for Real-World Challenges.
In EMNLP ’25 Findings.
(2025).
MultiAgentBench: Evaluating the Collaboration and Competition of LLM Agents.
In ACL ’25.
Recent News
Joined the UIUC ATLAS Moonshot 🚀
Invited by Prof. Jiawei Han to join the UIUC ATLAS Moonshot, building an Upskill-as-You-Go AI education and reskilling ecosystem!
First-author paper accepted to ICML 2026 🎉 — See you in Seoul!
ProtocolBench ‘Which LLM Multi-Agent Protocol to Choose?’ has been accepted to ICML 2026. Planning to attend in Seoul this July!
First-author paper submitted to ICML 2026 📄
My first-author paper ‘Which LLM Multi-Agent Protocol to Choose?’ has been submitted to ICML 2026!
Started a new research collaboration at Northwestern 🚀
Joined Prof. Manling Li’s lab at Northwestern University as a remote researcher, working on 3D affordance prediction!