nanochat

Overview

Tokenizer

rustbpe: ligthtweight BPE tokenizer in Rust

tiktoken: fast BPE tokenizer in Rust with Python bindings by OpenAI

import tiktoken
enc = tiktoken.get_encoding("o200k_base")
assert enc.decode(enc.encode("hello world")) == "hello world"

# To get the tokeniser corresponding to a specific model in the OpenAI API:
enc = tiktoken.encoding_for_model("gpt-4o")

minbpe: both training and inference in inefficient Python

References

• tiktoken
• minbpe
• BPE tokenization