Code Arena records 35,827,928 monthly visits with +19.4% month-over-month growth and Free pricing. jcode records 18,136 monthly visits with -22.7% growth and Freemium, Contact for Pricing pricing.
Battle-test AI coding models side by side
Open-source Rust coding agents for your terminal, built for parallelism
| Dimension / Metric | | |
|---|---|---|
| Official Domain | arena.ai | jcode.sh |
| Pricing Model | Free | Freemium, Contact for Pricing |
| Monthly Visits | 35.83M (35,827,928) | 18.14K (18,136) |
| MoM Traffic Delta |
| +5.83M (+19.4%) |
| -5.33K (-22.7%) |
| Primary Market & Share | 🇮🇳 India (13.1%) | 🇺🇸 United States (66.1%) |
|---|
| Direct Visits / mo | 24.34M | 11.87K |
|---|
| User Rating | 4.7 | 4.2 |
|---|
| 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 Rust coding agents for your terminal, built for parallelism
Each additional jcode session costs megabytes rather than hundreds of megabytes, and a new session is ready for input in well under a tenth of a second, so you can run many agents on hardware you already own.
Launch multiple agents in parallel, hand off long jobs to background or headless execution, and keep durable task state so work survives interruption.
The jcode bench suite (float-print, json-unescape, utf16-transcode) scores optimization depth on an analog axis with no capping timeouts, so capability differences stay visible.
Agents rate confidence when a task item is assigned and again when it is finished; a sudden jump triggers forced re-verification instead of blind acceptance.
The AI coding agent for building ambitious software
Google's agent-first development platform for building and shipping software with AI agents
The coding agent that learns your coding taste
Free / Open-sourceA minimal, extensible terminal coding agent you can reshape
Free / Open-sourceRun many coding agents in parallel, each in its own worktree
Crowdsourced arena where AI models compete and humans crown the best design output
SpecialistAn AI IDE and coding agent that works on your project, not just your cursor
AI-powered terminal and agentic software factory for development teams
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
Agent orchestration platform for your whole software development lifecycle
The AI coding agent for building ambitious software
Google's agent-first development platform for building and shipping software with AI agents
The coding agent that learns your coding taste
Free / Open-sourceA minimal, extensible terminal coding agent you can reshape
Free / Open-sourceRun many coding agents in parallel, each in its own worktree
Crowdsourced arena where AI models compete and humans crown the best design output
SpecialistAn AI IDE and coding agent that works on your project, not just your cursor
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
Agent orchestration platform for your whole software development lifecycle
