SpecialistAI-powered app builder generating full-stack web apps with responsive UI, but not focused on casual game creation.
SpecialistAI-powered app builder generating full-stack web apps with responsive UI, but not focused on casual game creation.
Code Arena records 35,827,928 monthly visits with +19.4% month-over-month growth and Free pricing. Sekai records 507,174 monthly visits with +148.5% growth and Free pricing.

Instantly play, create and remix interactive mini-apps
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | arena.ai | sekai.ai |
| Pricing Model | Free | Free |
| Monthly Visits | 35.83M (35,827,928) | 507.17K (507,174) |
| MoM Traffic Delta | +5.83M (+19.4%) | +303.04K (+148.5%) |
| Primary Market & Share | 🇮🇳 India (13.1%) | 🇺🇸 United States (23.7%) |
| Direct Visits / mo | 24.34M | 101.62K |
| User Rating | 4.7 | 4.3 |
| Supported Platforms | Website | Website |

Battle-test AI coding models side by side
Send the same coding prompt to multiple leading models and compare their generated apps and logic side by side.
Watch models construct web apps and websites live, so you can see process and output, not just the final file.
Projects go beyond one-off snippets, testing how well a model structures components, routes, and styles together.
Track which coding models accumulate the most wins over time to identify consistently strong performers.

Instantly play, create and remix interactive mini-apps
A constantly updated feed of trending creations, top creators and curated categories such as meme, relax, strategy, action and puzzle.
A studio that lets you build a playable mini-app, then publish it to the community in minutes.
Take any published creation, change it and re-release your version — the engine behind most of the catalogue.
Everything runs in the browser with no install, and the same creations work on iPhone and Android through the Sekai app.
SpecialistAI-powered app builder generating full-stack web apps with responsive UI, but not focused on casual game creation.
SpecialistAI-powered app builder generating full-stack web apps with responsive UI, but not focused on casual game creation.
SpecialistFull-stack web application builder via natural language prompts, but lacks social gaming discovery feeds.
SpecialistFull-stack web application builder via natural language prompts, but lacks social gaming discovery feeds.
Combos social gaming feed with dedicated AI-assisted browser game creation tools for players and creators.

Crowdsourced arena where AI models compete and humans crown the best design output
Crowdsourced arena where AI models compete and humans crown the best design output

Agent Skills that give your coding agent real design taste
Agent Skills that give your coding agent real design taste
Free / Open-sourceSearch and study millions of public SKILL.md agent skills
Free / Open-sourceSearch and study millions of public SKILL.md agent skills

Free AI hackathons and a global community for AI builders
Free AI hackathons and a global community for AI builders

SpecialistStreamlined no-code platform turning text prompts into interactive mini-games, but less community sharing focus.
SpecialistStreamlined no-code platform turning text prompts into interactive mini-games, but less community sharing focus.
Community plugin, rule, and MCP server hub for Cursor
Community plugin, rule, and MCP server hub for Cursor

SpecialistFast AI game creation tool for turning text prompts into playable web games, with basic sharing.
SpecialistFast AI game creation tool for turning text prompts into playable web games, with basic sharing.

SpecialistFocused specifically on conversational creation and publishing of playable web games, but lacks broader sandbox exploration.
SpecialistFocused specifically on conversational creation and publishing of playable web games, but lacks broader sandbox exploration.

SpecialistTurns text descriptions into playable web browser games instantly, but offers fewer customization controls.
SpecialistTurns text descriptions into playable web browser games instantly, but offers fewer customization controls.