
Crowdsourcing data services for AI training and market data
Code Arena records 35,827,928 monthly visits with +19.4% month-over-month growth and Free pricing. LAION records 18,486 monthly visits with -24.1% growth and Free pricing.

Open AI research for everyone — datasets, models and tools, free for all
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | arena.ai | laion.ai |
| Pricing Model | Free | Free |
| Monthly Visits | 35.83M (35,827,928) | 18.49K (18,486) |
| MoM Traffic Delta | +5.83M (+19.4%) | -5.89K (-24.1%) |
| Primary Market & Share | 🇮🇳 India (13.1%) | 🇺🇸 United States (42.8%) |
| Direct Visits / mo | 24.34M | 5.21K |
| User Rating | 4.7 | 4.8 |
| 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 AI research for everyone — datasets, models and tools, free for all
Re-LAION-5B offers about 5.5 billion image–text link pairs, and LAION-BVD adds a 10-million-hour open video corpus for vision-language, audio-language and video research.
Scalable, openly licensed implementations plus pretrained weights for contrastive language–image training, so teams can reproduce or fine-tune CLIP-style models themselves.
Training code, evaluation utilities, papers and documentation are released alongside results, letting researchers compare datasets and checkpoints on equal footing.
Open-sci-ref publishes open baselines and intermediate checkpoints for comparing training datasets and language-model quality.

Crowdsourcing data services for AI training and market data

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
Free / Open-sourceFree practical deep learning courses, research and open-source libraries

Expert human data and evaluation for training frontier AI

Free / Open-sourceOpen-source database of AI models, prices and capabilities
Free / Open-sourceOpen-source database of AI models, prices and capabilities

Try experimental AI research demos straight from Meta's labs
Community plugin, rule, and MCP server hub for Cursor
Community plugin, rule, and MCP server hub for Cursor

Benchmark computer- and phone-use AI agents with blind head-to-head battles
Benchmark computer- and phone-use AI agents with blind head-to-head battles
The bug bounty platform built for AI and ML security
The bug bounty platform built for AI and ML security