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Free plan available

Code Arena

Side-by-side AI coding model comparison platform for developers.

Visitarena.ai
Intro

What is Code Arena?

Arena, widely known in the developer community as lmarena or the llm arena, is an open and interactive benchmarking platform designed to test and compare top AI coding models side-by-side. Transitioning from its roots as the popular lmarena ai, the platform allows developers to input a single prompt and witness multiple AI models generate multi-file applications, user interfaces, dashboards, games, or websites in real time. It serves as a live battle mode environment where users can evaluate code quality, logical reasoning, and syntax accuracy to see which model handles complex programming tasks best.

Code Arena at a glance
Free35M monthly visitsHas free access

Category

AI Code AssistantAI Code Generator
Best For

Best Code Arena use cases by task, role, industry, and platform

These use cases show where Code Arena fits best, ranked by fit score before popularity or pricing.

Pricing

Code Arena Pricing Plans

Compare Code Arena free options, Code Arena paid pricing plans, and usage notes before you choose the best way to use this AI tool in 2026.

Free

Pricing updated:Jun 11, 2026

Features

Code Arena AI Features

Side-by-side multi-model code generation and comparisonMulti-file application and website generation from a single promptImage to Code feature for converting screenshots or mockups into functional codeDirect code export capabilities to GitHub or local IDEsLive Leaderboard tracking the community-voted performance of AI coding modelsPre-configured generation templates for UIs, dashboards, games, 3D projects, and animations
Pros & Cons

Code Arena Pros and Cons

Pros

  • Completely free to use for testing frontier AI models
  • Saves time by generating entire multi-file web apps simultaneously
  • Seamless development workflow with GitHub and IDE export features
  • Visual presets make it easy to prototype specific UI components and games

Limitations

  • Inputs are processed by third-party providers, meaning responses may contain inaccuracies
  • Conversations and data are shared with AI providers or disclosed publicly to support research, making it unsuitable for sensitive or proprietary information

Code Arena FAQ

LMArena is now Arena! The platform evolved from the original lmarena project to focus specifically on generating and comparing multi-file code and applications side-by-side.

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