.. blogpost:: :title: ONNX, runtime, converters :keywords: onnx, onnxrt :date: 2019-06-15 :categories: onnx I have been recently working on :epkg:`sklearn-onnx` to write converter from :epkg:`scikit-learn` operators to :epkg:`ONNX` serialization format. I was talking about that a month ago and somebody asked me if there was a runtime implemented in `RUST `_. Not that I know of but I said it would not be too complex to implement one. That's what I did in Python. There are two components for the runtime. An ONNX model is a series of mathematical functions chained in a graph. A runtime must implement each component and the sequence of operators to compute predictions.