Open Neural Network Exchange
| Open Neural Network Exchange (ONNX) | |
|---|---|
| Original authors | Facebook, Microsoft |
| Developer | Linux Foundation |
| Initial release | September 2017 |
| Stable release | 1.20.0
/ 1 December 2025 |
| Written in | C++, Python |
| Operating system | Windows, Linux |
| Type | Artificial intelligence ecosystem |
| License | initially MIT License; later changed to Apache License 2.0 |
| Website | onnx |
| Repository | |
The Open Neural Network Exchange (ONNX) [ˈɒnɪks] is an open-source artificial intelligence ecosystem of technology companies and research organizations that establish open standards for representing machine learning algorithms and software tools to enable a standard format for representing machine learning models. ONNX is available on GitHub.