What is Code Arena?
Pit AI coding models against each other and build apps from the winner.
Who is Code Arena best for?
Code Arena is best for developers who want to compare coding models on the same app prompt before picking one.
Choosing a coding model
Battle mode builds your prompt with two anonymous models and names them only after you vote, so brand does not sway the pick.
Quick app prototypes
Describe a site or app, watch two models build it side by side, then keep chatting with the version you prefer.
Fullstack side projects
Fullstack mode adds a PostgreSQL database, user sign-in, third-party API keys and deployment to Vercel.
Trying models before launch
AI labs test unreleased models in Battle mode under codenames, so you can try them before they ship anywhere else.
How much does Code Arena cost?
Code Arena is free to use with no paid plans: Arena's terms say the service is currently offered free of charge, and the company earns its money selling model evaluations to AI labs and businesses.
- Battle, Side by Side and Direct modes for coding models
- Fullstack apps with a database, sign-in and deploys to Vercel
- Prompts and votes may go into public research datasets
Arena has no pricing page. Its terms say the service is free of charge for now and that Arena may start charging for the service or some features later. Full pricing on help.arena.ai. We checked these prices on .
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Questions about Code Arena
What is Code Arena?
Pit AI coding models against each other and build apps from the winner.
Who is Code Arena for?
Code Arena is best for developers who want to compare coding models on the same app prompt before picking one.
Is Code Arena free?
Yes. Code Arena is free, and Arena's terms say the whole service is currently offered free of charge, with no paid plans to choose from. Arena keeps the right to charge for some features later, and it pays its way by selling AI evaluations to companies and model labs.
Where can I try Code Arena?
On its official website, arena.ai.
Are my Code Arena prompts private?
Not fully. Arena says your conversations may be shared, with personal details removed, in public research datasets and with model providers working on their models. It recommends leaving sensitive information out, so avoid pasting private code or personal data into prompts.
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