Is there a javascript implementation of cl100k_base tokenizer?

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OpenAI's new embeddings API uses the cl100k_base tokenizer. I'm calling it from the NodeJS client but I see no easy way of slicing my strings so they don't exceed the OpenAI limit of 8192 tokens.

This would be trivial if I could first encode the string, slice it to the limit, then decode it and send it to the API.



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