The Open Neural Network Exchange (ONNX) [ˈɒnɪks][2] is an open-source artificial intelligence ecosystem[3] of technology companies and research organizations that establish open standards for representing machine learning algorithms and software tools to promote innovation and collaboration in the AI sector.

[6] Later, IBM, Huawei, Intel, AMD, Arm and Qualcomm announced support for the initiative.

[3] In October 2017, Microsoft announced that it would add its Cognitive Toolkit and Project Brainwave platform to the initiative.

[6] Allow hardware vendors and others to improve the performance of artificial neural networks of multiple frameworks at once by targeting the ONNX representation.

[6] ONNX provides definitions of an extensible computation graph model, built-in operators and standard data types, focused on inferencing (evaluation).