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onnxruntime
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onnxruntime

ONNX Runtime: cross-platform, high performance ML inferencing and training accelerator

by microsoft · GitHub
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ai-frameworkdeep-learninghardware-accelerationMITC++
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In plain words

Run machine learning models faster on various devices using this cross-platform tool.

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Excerpts from the project README on GitHub. Copyright and licensing remain with the respective authors.

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2026-06-282026-08-31
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📄 About

ONNX Runtime: cross-platform, high performance ML inferencing and training accelerator

onnxruntime has 21.1k stars on GitHub. It has been forked 4.1k times. onnxruntime is written mainly in C++. It has been in active development since 2018. onnxruntime is available under the MIT license. Its main topics are ai-framework, deep-learning, hardware-acceleration, machine-learning.

Frequently asked questions

What is onnxruntime?

ONNX Runtime: cross-platform, high performance ML inferencing and training accelerator

Is onnxruntime open source?

onnxruntime is an open-source project. It is released under the MIT license.

Is onnxruntime free?

Yes. onnxruntime is free and open source — you can use, modify and self-host it.

What license does onnxruntime use?

onnxruntime is available under the MIT license.

What language is onnxruntime written in?

onnxruntime is written mainly in C++.

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