tiktoken-rs

Ready-made tokenizer library for working with GPT and tiktoken

Usage

1. Install this tool locally with cargo

sh cargo add tiktoken-rs

Then in your rust code, call the API

rust use tiktoken_rs::tiktoken::p50k_base; let bpe = p50k_base().unwrap(); let tokens = bpe.encode_with_special_tokens("This is an example"); println!("Token count: {}", tokens.len());

tiktoken supports three encodings used by OpenAI models:

| Encoding name | OpenAI models | |-------------------------|-----------------------------------------------------| | cl100k_base | ChatGPT models, text-embedding-ada-002 | | p50k_base | Code models, text-davinci-002, text-davinci-003 | | p50k_edit | Use for edit models like text-davinci-edit-001, code-davinci-edit-001 | | r50k_base (or gpt2) | GPT-3 models like davinci |

See the examples in the repo for use cases. For more context on the different tokenizers, see the OpenAI Cookbook

Encountered any bugs?

If you encounter any bugs or have any suggestions for improvements, please open an issue on the repository.

Acknowledgements

• Thanks @spolu for the original code, and .tiktoken files.

License

This project is licensed under the MIT License.