The custom_op_cliptok.onnx file is a single op ONNX model which implements a CLIP style tokenizer (i.e. a byte level
Byte-Pair encoding tokenizer). It is generated from the vocabulary and merge list by
onnxruntime-extensions, and contains the single operation
ai.onnx.contrib.CLIPTokenizer. It can be swapped out for another tokenizer if necessary by regenerating the ONNX file
using a different vocabulary and/or merge list.
This file is taken from the C# implementation of stable diffusion inference commit 0323ce3, specifically this file.
MIT License
Copyright (c) 2023 Cassie Breviu
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