LMArena

lmarena.ai

LMArena is an AI evaluation platform that allows users and organizations to compare large language models by submitting prompts to two anonymous models and voting on the preferred response. It hosts a public leaderboard reflecting community preferences, helping developers, researchers, and teams understand performance differences between models through crowd-sourced feedback. The platform also offers evaluation services that deliver analytics and insights based on real-world human interactions to support AI development and refinement. LMArena supports multiple modalities and aims to provide transparent, community-informed benchmarking data for model assessment and improvement.