Created by researchers from UC Berkeley, Arena (formerly LMArena) is a community-powered platform for understanding AI performance in the real world. Tens of millions of builders, researchers, and creative professionals come to Arena to use frontier models and give feedback on their responses, shaping a public leaderboard grounded in real-world use.
To measure and advance the frontier of AI for real-world use.
To build the foundation for everyone to understand, shape, and benefit from AI.
Jump in to connect, discuss, and shape transparent AI evaluations together
Our AI Evaluations service offers enterprises, model labs, and developers comprehensive evaluation services grounded in real-world human feedback.