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Utf-8

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Videos About Utf-8

Let's build the GPT Tokenizer

Let's build the GPT Tokenizer

Andrej Karpathy

Studies & Research

LLaMA 2 paper Integer Tokenization is Insane (blog post)GPT-2 paper UTF-8 Everywhere Manifesto

Tools & Products

tiktoken (web app: tiktokenizer/bell.app)OpenAI encoder.py (GPT-2 encoder implementation)encoder.json & vocab.bpe (OpenAI tokenizer artifacts)CL100k (GPT-4 tokenizer)MBP (repo / implementation)SentencePiece fill-in-the-middle special tokens (FIM)GPT-4 tokenizer whitespace improvements (design choice)

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