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- Introduction:
- Compare AI coding models side by side and generate multi-file apps from one prompt
- Added on:
- Nov 2, 2026
- Website:
- www.arena.ai
- Company:
- Arena
Featured Tools
Introduction
Code Arena, formerly LMArena, lets developers send one prompt to different AI coding models and compare the results next to each other. It can build multi-file apps or sites, turn screenshots into code, and export to GitHub or a local IDE. A leaderboard tracks model performance.
- Added on
- Nov 2, 2026
- Website
- www.arena.ai
- Pricing model
- Free
- Company
- Arena
Product information
What is Code Arena?
Code Arena (formerly LMArena) is a platform for testing AI coding models against each other. One prompt produces outputs from several models, so you can judge quality, reasoning and accuracy directly.
Core features of Code Arena
- Side-by-side model comparison
- Multi-file app and website generation
- Export to GitHub or IDE
- Image to Code
- Real-time quality evaluation
- Model leaderboard
Use cases of Code Arena
- 1Comparing how different models reason about a coding task
- 2Generating a multi-file website from a single prompt
- 3Converting a UI mockup into frontend code
- 4Benchmarking new AI coding models
How to use Code Arena?
Describe what you want to build or upload a screenshot with Image to Code. Compare the side-by-side outputs, then export the chosen code to GitHub or your IDE.
Frequently asked questions about Code Arena
Is Code Arena free?+
Per the source, it is currently free for developers to use.
Can I export the code Code Arena generates?+
Yes. Ready-to-run code can be exported to GitHub or your IDE.
What is Image to Code in Code Arena?+
It lets you upload a screenshot or mockup and have the AI generate matching code.
Which category is Code Arena in?+
Code Arena is listed under AI Code Assistant.