Practical overview
When it fits
Use it when you want an editable object-detection codebase and documented examples for inference or training, rather than a hosted detection interface.
Who it is for
- Computer-vision developers integrating object detection into an application or pipeline
- Researchers and practitioners training or comparing object-detection models
- Engineers evaluating model deployment through ONNX, TensorRT, ncnn or OpenVINO
Documented uses
- Run object detection on an image or video using a pretrained checkpoint.
- Train YOLOX model variants using the documented COCO workflow.
- Compare model variants using the repository’s reported benchmark measures.
- Inspect assignment visualization during training or debugging.
- Build an inference workflow around a listed deployment ecosystem.
Requirements & limits
- The primary implementation in this repository is PyTorch; a separate MegEngine implementation is also referenced.
- The README lists YOLOX-s, -m, -l and -x as standard models, and Nano and Tiny as light models, with benchmark measures to compare.
- The demo workflow requires a checkpoint, detector configuration and input media; it exposes CPU/GPU selection and detection parameters.
- The README documents COCO training and multi-machine training, while caching images requires substantial system RAM.
- Apache-2.0 is the repository’s stated license.
Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.
Run the pretrained image demo
Install YOLOX from source and use its documented demo command to process an image.
Before you start
- Python 3 and pip3
- The YOLOX repository
- A pretrained checkpoint from the repository’s benchmark table
- An image file; the example uses assets/dog.jpg
Steps
Clone the YOLOX repository and change into its directory.
Install the project in editable mode with pip3 install -v -e . or use python3 setup.py develop.
Download a pretrained model checkpoint and select a detector configuration, such as yolox-s.
Run the documented image demo with the checkpoint, image path and configuration; choose CPU or GPU and set the provided detection options as needed.
Expected outcome
The demo processes the selected image and can save a result when --save_result is used.
Guide limitations
- The repository’s example command requires the user to supply the checkpoint and input path.
- The listed deployment runtimes do not by themselves establish compatibility with a particular hardware target or configuration.
Sources & review
Source record details
- Source availability
- Active
- Sources checked
- 15 October 2026
- Original website title
- Megvii-BaseDetection/YOLOX · Official homepage title · retained in its source language

