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Open Neural Network Exchange
The open standard for machine learning interoperability
ONNX is an open format built to represent machine learning models. ONNX defines a common set of operators - the building blocks of machine learning and deep learning models - and a common file format to enable AI developers to use models with a variety of frameworks, tools, runtimes, and compilers. LEARN MORE
KEY BENEFITS
Interoperability
Develop in your preferred framework without worrying about downstream inferencing implications. ONNX enables you to use your preferred framework with your chosen inference engine.
Hardware Access
ONNX makes it easier to access hardware optimizations. Use ONNX-compatible runtimes and libraries designed to maximize performance across hardware.
COMMUNITY
ONNX is a community project.
Our active community thrives under our open governance structure, which provides transparency and inclusion. We encourage you to engage and contribute.

WE ARE AN LFAI GRADUATE PROJECT
NEWS AND ANNOUNCEMENTS
Recordings of the 2025 ONNX Community Meetup online
Recordings could be found at…
List of candidates for ONNX Steering Committee election.
Active contributors to the ONNX project will be requested to vote from May 12 to May 19th. Elected Steering…
