Code Arena records 35,827,928 monthly visits with +19.4% month-over-month growth and Free pricing. Prolific records 18,697,671 monthly visits with -1.8% growth and Paid pricing.
Battle-test AI coding models side by side
High-quality human data for AI training, evaluation, and research
| Dimension / Metric | | |
|---|---|---|
| Official Domain | arena.ai | prolific.com |
| Pricing Model | Free | Paid |
| Monthly Visits | 35.83M (35,827,928) | 18.7M (18,697,671) |
| MoM Traffic Delta | +5.83M (+19.4%) | -352.04K (-1.8%) |
| Primary Market & Share | 🇮🇳 India (13.1%) | 🇺🇸 United States (48.8%) |
| Direct Visits / mo | 24.34M | 12.98M |
| User Rating | 4.7 | 4.6 |
| 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.
High-quality human data for AI training, evaluation, and research
Filter participants by detailed demographic, professional, and behavioural criteria and reach narrow or representative samples rather than a generic crowd.
Collect human preference data for model fine-tuning, run safety evaluations and red-teaming, and use a feedback API to plug humans into automated pipelines.
Attention checks, honesty screening, and approval workflows help filter out careless or fraudulent responses before you analyse results.
Publish a study and begin collecting responses quickly, with tooling that supports screening, quotas, and longitudinal designs.
Large consumer panel for market research surveys, but lacks Prolific's specialized focus on academic studies and AI tuning.
Large consumer panel for market research surveys, but lacks Prolific's specialized focus on academic studies and AI tuning.
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
SpecialistThe environments frontier AI trains on, and the agents that do the recurring work
SpecialistThe environments frontier AI trains on, and the agents that do the recurring work
Enterprise-grade data annotation and AI alignment workforce, but less self-serve for academic study recruitment and casual surveys.
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
SpecialistAI data infrastructure for building production-grade models
SpecialistAI data infrastructure for building production-grade models
SpecialistSpecializes in video-based consumer interviews and AI qualitative analysis, but less focused on quantitative academic survey panels.
SpecialistSpecializes in video-based consumer interviews and AI qualitative analysis, but less focused on quantitative academic survey panels.
SpecialistSources verified B2B professionals and healthcare experts for specialized research, but lacks broad general-population academic panels.
SpecialistSources verified B2B professionals and healthcare experts for specialized research, but lacks broad general-population academic panels.
Free / Open-sourceOpen-source data labeling and evaluation platform for AI workflows, but requires bringing your own annotation workforce.
Free / Open-sourceOpen-source data labeling and evaluation platform for AI workflows, but requires bringing your own annotation workforce.
Community plugin, rule, and MCP server hub for Cursor
Community plugin, rule, and MCP server hub for Cursor
