Arena Intelligence
Arena Intelligence Inc.
LMArenaChatbot ArenaLMSYS Chatbot ArenaLMSYSLMSYS Org
Company behind LMArena/Arena — a platform for comparative evaluation of AI models. Spun out of LMSYS at UC Berkeley.
Founded2025
Arena Intelligence
Founded 2025 · United StatesArena Intelligence Inc. is an independent company incorporated in April 2025 that operates the LMArena platform (renamed "Arena" on January 28, 2026). The project originated at the University of California, Berkeley within the LMSYS group; its co-creators were Wei-Lin Chiang, Anastasios N. Angelopoulos, and Ion Stoica. The company raised a $100M seed round (~$600M valuation) and, in January 2026, a $150M Series A (~$1.7B valuation).
Global presence
Scale & funding
founded 20252025founded
Profile & metadata
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