LMArena

Overview

LMArena, also presented as Arena AI, is a platform for chatting with and comparing leading AI models side by side. Users can start a new chat, search, or enter a battle mode to compare models, and their votes contribute to public, crowdsourced leaderboards for LLMs, image models and code models.

Key features

1. Model battles: Compare AI models head to head and vote for the better response.
2. Side-by-side comparison: Chat with multiple AI models at once to compare outputs such as ChatGPT, Claude and Gemini.
3. Public leaderboards: Community votes feed rankings and benchmarks for LLMs, image and code models.
4. Chat interface: Start a new chat and search within the platform.

Use cases

1. Evaluating which AI model performs best for a given prompt or task.
2. Exploring responses from several frontier models in one place.
3. Contributing to community-driven, real-world model evaluation.

Who it is for

LMArena is aimed at anyone who wants to compare AI models directly, from curious users and researchers to developers choosing a model for a project.

Official website

lmarena.ai