Created by researchers from UC Berkeley, Arena (formerly LMArena) is an open platform where everyone can easily access, explore and interact with the world's leading AI models. By comparing them side by side and casting votes for the better response, the community helps shape a public leaderboard, making AI progress more transparent, and grounded in real-world usage.
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.