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Code Arena

Code Arena

Prompt once. Compare multiple AI-built apps for free.

Website arena.ai
Overview

What it is

Prompt once and compare outputs from top AI coding models. Arena generates multi-file apps or websites side-by-side. Export ready-to-run code to GitHub or your IDE. Built for developers. Free to use.

Intent

I need it when

Access and test pre-release or experimental AI coding models early

Code Arena offers early access to frontier models and pre-release variants under codenames before official public launch, allowing users to explore and provide feedback on models still in development

Build and test web applications and websites in real time using AI assistance

Code Arena's web development features let users build apps and websites while evaluating model accuracy and logic, with access to frontier models often available before public release

Compare and benchmark different AI coding models to understand which performs best for specific tasks

Code Arena provides Battle Mode and Side by Side comparison tools where users can test leading coding models on identical prompts, vote on outputs, and view real-time leaderboard rankings powered by community feedback

Evaluate model performance across multiple coding and creative tasks with a public leaderboard

Code Arena maintains specialized leaderboards for WebDev, Image-to-WebDev, Text-to-Code, and other coding tasks, with rankings grounded in real-world community use rather than static benchmarks

Contribute to transparent AI research and help shape model development through community feedback

Users can submit prompts and vote in Battle Mode to directly influence model rankings via the Bradley-Terry rating system; votes are collected for open research datasets and shared with model providers to improve AI

Drop

Not a fit when

  • User needs guaranteed model accuracy or production-ready code without testing—Code Arena is for evaluation and comparison, not guaranteed outputs
  • User requires private, confidential code development—conversations are shared publicly for research and community advancement
  • User needs offline or air-gapped coding environment—Code Arena requires internet and third-party AI provider access
  • User wants a single, fixed AI model—Code Arena is designed for comparing multiple models side-by-side
  • User needs enterprise SLA or dedicated support without contacting sales—pricing and support tiers are not publicly documented
Commercials

Pricing

Free platform with optional enterprise AI Evaluations service