Stanford University
Wei-Lin ChiangCo-founder and CTO · ArenaFounder↗
Founder · Executive · Researcher
Anastasios Angelopoulos
ArenaCo-founder and CEO
Angelopoulos co-created Chatbot Arena during his Berkeley EECS PhD. His research develops statistical foundations for reliable AI, including conformal prediction, conformal risk control, and prediction-powered inference, alongside methods for evaluating models through human preference.
Career & education
Current roleArena2024-presentCo-founder and CEO
Arena2024-presentPreviously
UC Berkeley2024-2025Postdoctoral Scholar
UC Berkeley2024-2025Education
Work 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.
citations12,409As of Oct 23, '26
Selected contributions
Chatbot Arena: An Open Platform for Evaluating LLMs by Human Preference
With Wei-Lin Chiang, Lianmin Zheng, Ying Sheng, 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.
