Code Arena records 35,827,928 monthly visits with +19.4% month-over-month growth and Free pricing. Ladderly.io records 573 monthly visits with -74.6% growth and Freemium pricing.
Battle-test AI coding models side by side
Open-source coding education and career accelerator for engineers
| Dimension / Metric | | |
|---|---|---|
| Official Domain | arena.ai | ladderly.io |
| Pricing Model | Free | Freemium |
| Monthly Visits | 35.83M (35,827,928) | 573 (573) |
| MoM Traffic Delta |
| +5.83M (+19.4%) |
| -1.68K (-74.6%) |
| Primary Market & Share | 🇮🇳 India (13.1%) | 🌐 Global (—) |
|---|
| Direct Visits / mo | 24.34M | 188 |
|---|
| User Rating | 4.7 | 4.4 |
|---|
| 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.
Open-source coding education and career accelerator for engineers
A Standard Checklist gives a concrete starting point so learners know exactly which step comes next instead of guessing.
A deliberate practice routine for algorithmic interview questions, cited by users as improving coding-interview efficiency and confidence.
Web development and software engineering learning material published openly and accessible to anyone, not gated behind tuition.
A paid tier that layers additional tooling and content on top of the free checklists and curriculum.
Crowdsourced arena where AI models compete and humans crown the best design output
Agent Skills that give your coding agent real design taste
Free / Open-sourceSearch and study millions of public SKILL.md agent skills
#3
Free AI hackathons and a global community for AI builders
Free / Open-sourceFree practical deep learning courses, research and open-source libraries
Free / Open-sourceFree open course for prompt engineering and AI security
Community plugin, rule, and MCP server hub for Cursor
Benchmark computer- and phone-use AI agents with blind head-to-head battles
Courses and best practices for building AI-powered products end to end
The bug bounty platform built for AI and ML security
Free / Open-sourceOpen-source engineering calculators for civil and structural design
Learn Claude Code and ship real apps, sites, and income streams
Crowdsourced arena where AI models compete and humans crown the best design output
Agent Skills that give your coding agent real design taste
Free / Open-sourceSearch and study millions of public SKILL.md agent skills
Free AI hackathons and a global community for AI builders
Free / Open-sourceFree open course for prompt engineering and AI security
Community plugin, rule, and MCP server hub for Cursor
Benchmark computer- and phone-use AI agents with blind head-to-head battles
Courses and best practices for building AI-powered products end to end
The bug bounty platform built for AI and ML security
Free / Open-sourceOpen-source engineering calculators for civil and structural design
Learn Claude Code and ship real apps, sites, and income streams
