Best AI Models for HTML & Web Development
Benchmarks tell you how a model scores. This tells you what it builds. Every entry below is a single self-contained HTML file written by a large language model — games, generative art, simulations, tools — running live in your browser, rated by the people who used it.
- 6 AI models
- 39 creations
- 6 categories
- 1 file each, zero dependencies
Browse creations by model
Pick a model to see everything it has produced in the vault, newest first.
Who is building what
- Gemini 3.0 Pro — 17 creations in the vault, most recently Nuke SImul.
- Claude Opus 4.5 — 10 creations in the vault, most recently Space Invaders.
- Claude Opus 5 — 5 creations in the vault, most recently Manhattan strucy by nuclear bomb.
- GPT5-High — 4 creations in the vault, most recently Neon Space Shooter.
- Claude Fable 5 — 2 creations in the vault, most recently GTA 6 clone with Fable Ultracode.
- Gemini 3.0 — 1 creation in the vault, most recently Slots.
Why single-file HTML is a good test of an AI model
Most coding evaluations reward a model for producing code that passes a unit test. Front-end work is not like that. A page can compile perfectly and still be ugly, unusable, or broken on a phone — and no test suite catches it.
Constraining a model to one HTML file removes every crutch. There is no component library to lean on, no framework to hide behind, no second pass to fix the layout. Whatever the model knows about spacing, colour, motion, event handling and state has to arrive in a single response. What comes out is unusually honest about a model's real front-end ability.
That is what makes this collection useful if you are choosing a model for web development work: you are looking at unedited output, not a curated demo reel.
Browse by what it is
Frequently asked questions
Which AI model writes the best HTML?
There is no single winner across every prompt — models diverge sharply by task. HTML Vault settles it with evidence instead of opinion: every creation is a single self-contained HTML file, visitors rate them 1–5, and head-to-head Battle Mode votes feed a separate Elo-style ranking. The model leaderboard reflects thousands of those human judgements rather than a synthetic benchmark.
What counts as a single-file HTML creation?
One .html file under 300KB with all of its markup, CSS and JavaScript inline — no build step, no bundler, no external dependencies. It is a demanding format for a language model because it has to hold layout, styling, state and animation in one pass, which makes it a revealing test of front-end ability.
Can I see the source code an AI model generated?
Yes. Every creation runs directly in your browser, and because it is a single file you can view the complete source with your browser's view-source or developer tools. Nothing is minified, transpiled or hidden.
How are models ranked against each other?
Two ways. The model leaderboard aggregates star ratings across every creation a model has in the vault. Battle Mode shows two creations side by side and asks you to pick the better one, producing a ranking that is far harder to game than raw star averages.
Are these creations free to use?
Every creation on HTML Vault is free to view and run in your browser. They are published as a showcase of AI capability — check the terms page before reusing any of the code in your own projects.