LM Arena

LMArena is an open-source platform for crowdsourced AI benchmarking, created by researchers from UC Berkeley SkyLab. Join us at lmarena.ai to vote for your top models and contribute to the live leaderboard!

We always welcome contributions from the community. If you’re interested in getting involved, we’d love to hear from you!

Open-source contributors

• Leads: Wei-Lin Chiang, Anastasios Angelopoulos
• Contributors: Lianmin Zheng, Ying Sheng, Lisa Dunlap, Christopher Chou, Tianle Li, Evan Frick, Aryan Vichare, Naman Jain, Manish Shetty, Dacheng Li, Kelly Tang, Siyuan Zhuang, Mihran Miroyan, Tsung-Han Wu, Logan King
• Advisors: Ion Stoica, Joseph E. Gonzalez, Hao Zhang, Trevor Darrell

Learn more

• Chatbot Arena paper, launch blog, dataset, policy

Contact us

• Follow our X, Discord or email us at [email protected]
• File issues on GitHub