UC Berkeley
National Taiwan University
Anastasios AngelopoulosCo-founder and CEO · ArenaFounder↗
Founder · Researcher · Engineer
Wei-Lin Chiang
ArenaCo-founder and CTO
Chiang co-created Chatbot Arena while completing his Berkeley EECS PhD in the Sky Computing Lab. His systems work includes FastChat, which powered Vicuna and the original Arena, as well as SkyPilot and research on efficient large-scale machine learning.
Career & education
Current roleArena2024-presentCo-founder and CTO
Arena2024-presentWork and education history is primarily focused on AI-relevant roles and may not be comprehensive.
Citation Trend
Total citations to scholarly work, including research papers, technical reports, books and theses, as recorded by Google Scholar. Each point is a dated snapshot.
citations29,574As of Oct 27, '26
Selected contributions
Chatbot Arena: An Open Platform for Evaluating LLMs by Human Preference
With Lianmin Zheng, Ying Sheng, Anastasios Angelopoulos, Tianle (Tim) Li, Dacheng Li, Hao Zhang, Banghua Zhu and others ·Presented Chatbot Arena, comparing language models through people's votes on anonymous answers.
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Reviewed July 19, 2026 · Checked for accuracy and new information.
