Free / Open-sourceProvides an all-in-one ecosystem for dataset annotation, model training, and edge deployment.

Code Arena records 35,827,928 monthly visits with +19.4% month-over-month growth and Free pricing. Ultralytics records 793,423 monthly visits with +8.7% growth and Freemium pricing.

Real-time vision AI models and a full platform to train, annotate, and deploy them
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | arena.ai | ultralytics.com |
| Pricing Model | Free | Freemium |
| Monthly Visits | 35.83M (35,827,928) | 793.42K (793,423) |
| MoM Traffic Delta |
| +5.83M (+19.4%) |
| +63.49K (+8.7%) |
| Primary Market & Share | 🇮🇳 India (13.1%) | 🇨🇳 China (15.2%) |
|---|
| Direct Visits / mo | 24.34M | 239.75K |
|---|
| 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.

Real-time vision AI models and a full platform to train, annotate, and deploy them
One model family covering detection, instance segmentation, pose estimation, oriented boxes, classification, and tracking, tuned for real-time inference on GPU, CPU, and edge devices.
Label data with SAM-assisted annotation, train on cloud GPUs with AutoTrain, and deploy to managed regions that scale to zero when idle.
Ship trained models to ONNX, TensorRT, CoreML, TFLite, and many other formats for cloud servers, mobile devices, and embedded hardware.
Adopt the open-source AGPL-3.0 release, or purchase an enterprise license to embed YOLO in closed-source products without copyleft obligations.
Free / Open-sourceProvides an all-in-one ecosystem for dataset annotation, model training, and edge deployment.


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

SpecialistEnterprise-grade labeling and data curation platform for complex computer vision training pipelines.
#3
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
SpecialistProvides advanced multimodal dataset curation and annotation tools specifically for computer vision teams.

Free / Open-sourceOpen-source self-hosted NVR optimized for running real-time local object detection on security feeds.


Free / Open-sourceOpen-source labeling tool with extensible support for custom computer vision annotation tasks.
Community plugin, rule, and MCP server hub for Cursor

SpecialistSpecializes in dataset curation, visualization, and quality evaluation for computer vision workflows.

SpecialistFocuses on prompt-based rapid assembly of end-to-end enterprise computer vision applications.
Free / Open-sourceProvides an all-in-one ecosystem for dataset annotation, model training, and edge deployment.
Crowdsourced arena where AI models compete and humans crown the best design output
SpecialistEnterprise-grade labeling and data curation platform for complex computer vision training pipelines.
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
SpecialistProvides advanced multimodal dataset curation and annotation tools specifically for computer vision teams.
Free / Open-sourceOpen-source self-hosted NVR optimized for running real-time local object detection on security feeds.
Free / Open-sourceOpen-source labeling tool with extensible support for custom computer vision annotation tasks.
Community plugin, rule, and MCP server hub for Cursor
SpecialistSpecializes in dataset curation, visualization, and quality evaluation for computer vision workflows.
SpecialistFocuses on prompt-based rapid assembly of end-to-end enterprise computer vision applications.