There is a free website where you type one prompt and watch ChatGPT, Gemini, Claude, and dozens of other AI models race to build it at the same time. You pick the winner. Then you can build a full working app, with logins and a database, for nothing.
Here’s the thing. Most “free AI tool” posts you read online are either outdated, exaggerated, or describing a trial that quietly turns into a subscription. This one isn’t. The platform is called Design Arena, and the version of it making the rounds in creator circles right now undersells what it actually does. Let’s break down what it is, what it gets right, what needs a correction, and exactly how to use it.
What Design Arena Actually Is
Design Arena is a free platform built by Arcada Labs, a San Francisco startup that came out of Y Combinator’s 2025 batch. Its original purpose was not to give you a free ChatGPT alternative. It was built as a crowdsourced benchmark, a way to measure which AI models are actually good at design and coding, using real human votes instead of automated test scores.
You type a prompt. The same prompt gets sent to several top AI models at once. You see the results side by side, anonymously, and you vote on which one is better. That vote becomes data on a public leaderboard. The side effect, and the reason creators are talking about it, is that you walk away with a free, usable output every single time you vote. You’re not just watching a benchmark. You’re getting paid in free work, and the platform gets a vote in return.
The numbers back up how far this has spread. Design Arena has crossed 2 million users in more than 190 countries, and it now covers far more than websites: images, video, mobile apps, slides, 3D design, logos, SVGs, and game prototypes all have their own arenas.
One Honest Correction to “ChatGPT, Gemini, and Claude”
The framing you’ve probably seen is that Design Arena gives you OpenAI, Google, and Anthropic for free. That’s true, but it undersells the platform. Each voting round randomly samples models from a much bigger pool, and that pool now includes more than 50 language models and dozens of image, video, and audio models. Alongside the familiar names, you’ll also run into xAI’s Grok, Mistral, Alibaba’s Qwen, Moonshot’s Kimi, Zhipu’s GLM, and DeepSeek, among others.
What this really means is you’re not choosing “ChatGPT vs Gemini vs Claude” on demand. You’re submitting one prompt and getting matched against four models pulled at random from whichever providers are active that week. Sometimes that includes all three big US labs. Sometimes it’s a mix you didn’t expect. Either way, you still get to keep and use whatever comes out, and the comparison is genuinely the point.
Step by Step: Run Your First Battle on Design Arena
This works the same way whether you want a logo, a landing page, or a presentation deck. Here’s the flow.
- Open the site. Go to designarena.ai. No card, no install.
- Pick a category. You’ll see tabs for Website, UI Component, Image, Logo, SVG, ASCII Art, Slides, 3D Design, Data Visualization, Text-to-Speech, and Mobile Apps. Pick the one that matches what you’re building.
- Write a specific prompt. Vague prompts get vague results everywhere, not just here. Instead of “build me a website,” try something like “build a one-page portfolio site for a freelance photographer, dark theme, large image grid, contact form at the bottom.”
- Use Enhance Prompt if you’re short on detail. There’s a button that runs your prompt through a quick rewrite pass, adding layout, accessibility, and styling specifics before it goes to the models. Skip it if your prompt is already detailed.
- Watch the build happen live. The system samples models from the active pool and generates results in parallel. For code-based categories you’ll see the output rendered live, not just described.
- Vote, then vote again. You’ll go through a short bracket of head-to-head matchups until a winner and runner-up are decided. Each vote you cast also strengthens the model’s leaderboard score.
- Keep what you like. Once the battle ends, you can grab the output, whether that’s code, an image file, or a deployed link.
Max Mode: Full-Stack Apps With Logins and a Real Database
This is the part of the video that’s easy to dismiss as hype, and it isn’t. Design Arena added a feature that goes well past generating a pretty front end. It’s called Max Mode, and it tests whether a model can ship a complete, working application: real user accounts, a real database, and real backend logic, not just a form that looks finished but doesn’t save anything.
According to the team’s own writeup with Google Cloud AI’s Addy Osmani, this full-stack evaluation checks whether the database actually keeps your data, whether protected pages are actually protected, and whether the API responds correctly when something goes wrong. Under the hood, apps run on a real architecture: a frontend, a backend, and a Postgres database, deployed the same way a real engineering team would deploy them.
To try it yourself:
- Go to designarena.ai with Max Mode turned on.
- Describe a real application, not a static page. Something like “a note-taking app where users sign up, log in, and only see their own notes” is the kind of prompt this mode is built for.
- Let both builds finish. This takes longer than a simple webpage because there’s an actual backend being provisioned, not just HTML being painted on screen.
- Test the apps like a user would. Sign up, log in, create something, refresh the page, and see if your data is still there.
- Vote based on what actually works, not just what looks nicer at first glance.
The Mobile App Builder: From Prompt to APK
The mobile claim checks out too, and it’s more specific than “an app builder.” Design Arena runs a dedicated Mobile Arena where two AI coding agents receive your prompt, build independently, and hand you something you can actually install. For Android specifically, the system runs the real build process behind the scenes (Gradle’s debug build step) and gives you a downloadable APK file at the end, along with the option to set a custom app icon.
How to try it:
- Visit designarena.ai/mobile for a cross-platform build using Expo and React Native, previewable by scanning a QR code on your phone.
- Or go to designarena.ai with Android mode turned on for a native build using Kotlin and Jetpack Compose.
- Describe a simple, self-contained app idea. Habit trackers, expense loggers, and single-screen utility apps tend to finish faster and cleaner than anything requiring multiple connected screens.
- Let the build run. There’s no human reviewing the code mid-process, so if something breaks, the agent has to notice and fix it on its own.
- Preview on your phone through the QR code, or download the APK directly if you went the native Android route.
- Vote on which build actually works, not just which one looks better in a screenshot.
Which Arena Should You Actually Open First?
| You want to… | Open this | What you’ll get |
|---|---|---|
| Test a quick landing page or portfolio idea | Website arena | A rendered, working webpage in minutes |
| Build something with logins and saved data | Max Mode | A deployed app with a real backend and database |
| Get a working Android app without coding | Android mode | A downloadable APK you can install today |
| Prototype a cross-platform mobile app | Mobile Arena (Expo) | A QR-code preview on your own phone |
| Generate a logo, SVG, or graphic | Logo / SVG arena | A finished, downloadable design file |
| Compare raw model output for a specific niche task | Leaderboards | Existing community vote data, no prompt needed |
Where This Fits, and Where It Doesn’t
Being practical means being honest about the catch, and there is one.
This is a benchmark first, a free tool second. The entire system is built around anonymous voting that feeds public leaderboards. Your prompts and the outputs you generate can end up visible in the community gallery. If you’re prototyping a client idea you’d rather keep private, treat Design Arena as a sandbox for exploration, not as your private workspace.
You don’t get to hand-pick which model answers you. The system samples models at random from the active pool for each battle. You can’t reliably request “give me Claude specifically” the way you can inside an actual Claude subscription. If you need a specific model every time, this isn’t a replacement for that model’s own app.
There’s no real back-and-forth conversation. Each prompt produces a one-shot build, not an ongoing chat where you refine the same project across many turns the way you would in ChatGPT, Gemini, or Claude directly. You can re-prompt and try again, but you’re not iterating inside a single persistent thread.
Heavier builds take real time, and busy periods mean waiting. A full-stack app with a working database takes longer to generate than a static page, because there’s an actual server and database being provisioned behind the scenes. At peak load, some models have been pulled from rotation in the past simply because builds were taking too long. Patience helps here.
The Android build is a debug APK, not a Play Store release. It’s genuinely installable on your own device, but it hasn’t gone through the signing and review process a published app would need. Treat it as a working prototype, not a shippable product.
None of that erases what’s actually impressive here. For testing an idea, comparing how different AI models think, or getting a working prototype without paying for five different subscriptions, Design Arena does something most “free AI tool” posts only promise.
The Bottom Line
The version of this story going around isn’t wrong, it’s just incomplete. Design Arena gives you free access to OpenAI, Google, and Anthropic models, plus a much wider bench you didn’t know you were getting. It builds full working apps with logins and databases through Max Mode. It hands you a working Android app you can install today. The catch is that you’re trading some privacy and model control for all of that, since the whole system exists to collect votes, not to be your everyday chat app.
If you’ve been paying for one AI tool to test ideas before committing, this is worth ten minutes of your time before you renew anything.
The best AI comparison tool on the internet right now isn’t ranking models on a spec sheet. It’s letting you watch them build, live, and vote with your own eyes.
Just Being Resourceful! 
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