SpecialistAI-powered app builder generating full-stack web apps with responsive UI, but not focused on casual game creation.
SpecialistAI-powered app builder generating full-stack web apps with responsive UI, but not focused on casual game creation.
Sekai records 507,174 monthly visits with +148.5% month-over-month growth and Free pricing. Ultralytics records 793,423 monthly visits with +8.7% growth and Freemium pricing.

Instantly play, create and remix interactive mini-apps
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | sekai.ai | ultralytics.com |
| Pricing Model | Free | Freemium |
| Monthly Visits | 507.17K (507,174) | 793.42K (793,423) |
| MoM Traffic Delta | +303.04K (+148.5%) | +63.49K (+8.7%) |
| Primary Market & Share | 🇺🇸 United States (23.7%) | 🇨🇳 China (15.2%) |
| Direct Visits / mo | 101.62K | 239.75K |
| User Rating | 4.3 | 4.6 |
| Supported Platforms | Website | Website |

Instantly play, create and remix interactive mini-apps
A constantly updated feed of trending creations, top creators and curated categories such as meme, relax, strategy, action and puzzle.
A studio that lets you build a playable mini-app, then publish it to the community in minutes.
Take any published creation, change it and re-release your version — the engine behind most of the catalogue.
Everything runs in the browser with no install, and the same creations work on iPhone and Android through the Sekai app.

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.
SpecialistAI-powered app builder generating full-stack web apps with responsive UI, but not focused on casual game creation.
SpecialistAI-powered app builder generating full-stack web apps with responsive UI, but not focused on casual game creation.
SpecialistFull-stack web application builder via natural language prompts, but lacks social gaming discovery feeds.
SpecialistFull-stack web application builder via natural language prompts, but lacks social gaming discovery feeds.
Combos social gaming feed with dedicated AI-assisted browser game creation tools for players and creators.
Free / Open-sourceProvides an all-in-one ecosystem for dataset annotation, model training, and edge deployment.
Free / Open-sourceProvides an all-in-one ecosystem for dataset annotation, model training, and edge deployment.

SpecialistEnterprise-grade labeling and data curation platform for complex computer vision training pipelines.
SpecialistEnterprise-grade labeling and data curation platform for complex computer vision training pipelines.

SpecialistStreamlined no-code platform turning text prompts into interactive mini-games, but less community sharing focus.
SpecialistStreamlined no-code platform turning text prompts into interactive mini-games, but less community sharing focus.
SpecialistProvides advanced multimodal dataset curation and annotation tools specifically for computer vision teams.
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 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.
Free / Open-sourceOpen-source labeling tool with extensible support for custom computer vision annotation tasks.

SpecialistFast AI game creation tool for turning text prompts into playable web games, with basic sharing.
SpecialistFast AI game creation tool for turning text prompts into playable web games, with basic sharing.

SpecialistSpecializes in dataset curation, visualization, and quality evaluation for computer vision workflows.
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.
SpecialistFocuses on prompt-based rapid assembly of end-to-end enterprise computer vision applications.