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Open Neural Network Exchange (ONNX) is a format for deep learning models that allows interoperability between different open source AI frameworks. ONNX is being co-developed by Microsoft, Amazon and Facebook as an open-source project.[1][2][3] In its initial release the project will support Caffe2, PyTorch, MXNet and Microsoft CNTK Deep learning framework.


  1. ^ onnx: Open Neural Network Exchange, onnx, 2017-09-11, retrieved 2017-09-11
  2. ^ "Microsoft, Facebook Partner on AI Framework Interoperability".
  3. ^ "Model Server for Apache MXNet introduces ONNX support and Amazon CloudWatch integration". Retrieved 8 February 2018.