中文 | 한국어 | 日本語 | Русский | Deutsch | Français | Español | Português | Türkçe | Tiếng Việt | العربية

Ultralytics YOLOv8 is available through the official Ultralytics YOLO package. It supports object detection, instance segmentation, image classification, pose estimation, oriented object detection, and tracking in a fast, accurate, and easy to use Python and CLI workflow.

This repository is a lightweight discovery page for YOLOv8. The canonical implementation, package releases, model downloads, issues, and pull requests are maintained in ultralytics/ultralytics.

📄 Documentation

See below for quickstart installation and YOLOv8 usage examples. For comprehensive guidance on training, validation, prediction, and deployment, refer to the full Ultralytics Docs.

Install

Install the ultralytics package in a Python>=3.8 environment with PyTorch.

pip install ultralytics

Usage

CLI

yolo predict model=yolov8n.pt source="https://ultralytics.com/images/bus.jpg"

Python

from ultralytics import YOLO

# Load a pretrained YOLOv8n model
model = YOLO("yolov8n.pt")

# Run inference on the sample image
results = model("https://ultralytics.com/images/bus.jpg")

# Display the annotated results
results[0].show()

✨ Models

YOLOv8 models are available for detection, segmentation, classification, pose estimation, and oriented object detection. All model weights download automatically from the latest Ultralytics assets release on first use.

Model	Example Weights	Task	Train	Val	Predict	Export
YOLOv8	yolov8n.pt yolov8s.pt yolov8m.pt yolov8l.pt yolov8x.pt	Detection	✅	✅	✅	✅
YOLOv8-seg	yolov8n-seg.pt yolov8s-seg.pt yolov8m-seg.pt yolov8l-seg.pt yolov8x-seg.pt	Instance Segmentation	✅	✅	✅	✅
YOLOv8-cls	yolov8n-cls.pt yolov8s-cls.pt yolov8m-cls.pt yolov8l-cls.pt yolov8x-cls.pt	Classification	✅	✅	✅	✅
YOLOv8-pose	yolov8n-pose.pt yolov8s-pose.pt yolov8m-pose.pt yolov8l-pose.pt yolov8x-pose.pt	Pose Estimation	✅	✅	✅	✅
YOLOv8-obb	yolov8n-obb.pt yolov8s-obb.pt yolov8m-obb.pt yolov8l-obb.pt yolov8x-obb.pt	Oriented Detection	✅	✅	✅	✅

🧩 Integrations

Ultralytics integrations extend dataset labeling, training, visualization, deployment, and model management workflows. Explore Ultralytics Platform and the Ultralytics Integrations docs to connect YOLOv8 with your AI stack, including popular export formats like TensorRT, ONNX, CoreML, and TFLite.

🤝 Contribute

We thrive on community collaboration! Ultralytics YOLO would not be the SOTA framework it is without contributions from developers like you. Please see our Contributing Guide to get started. For source changes, documentation improvements, bug reports, and feature requests, use the canonical ultralytics/ultralytics repository.

📜 License

Ultralytics offers two licensing options to suit different needs:

• AGPL-3.0 License: This OSI-approved open-source license is perfect for students, researchers, and enthusiasts. It encourages open collaboration and knowledge sharing. See the LICENSE file for full details.
• Ultralytics Enterprise License: For development and production use, this license enables seamless integration of Ultralytics software and AI models into business products and services, including internal tools, automated workflows, and production deployments, bypassing the open-source requirements of AGPL-3.0. To get started, please contact us via Ultralytics Licensing.

📞 Contact

For YOLOv8 usage guidance, start with the YOLOv8 documentation. Install or upgrade the Ultralytics Python package with pip, and review the canonical source code for implementation details.

Important

Please submit bug reports and feature requests in the ultralytics/ultralytics issue tracker, where maintainers triage them alongside the source code.

For questions, discussions, and community support, join our active communities on Discord, Reddit, and the Ultralytics Community Forums.