gpt-tokenizer
The fastest JavaScript BPE Tokenizer Encoder Decoder for OpenAI's GPT models (gpt-5, gpt-o*, gpt-4o, etc.). Port of OpenAI's tiktoken with additional features.
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The fastest JavaScript BPE Tokenizer Encoder Decoder for OpenAI's GPT models (gpt-5, gpt-o*, gpt-4o, etc.). Port of OpenAI's tiktoken with additional features.
What is gpt-tokenizer?
The fastest JavaScript BPE Tokenizer Encoder Decoder for OpenAI's GPT models (gpt-5, gpt-o*, gpt-4o, etc.). Port of OpenAI's tiktoken with additional features.
Is gpt-tokenizer open source?
gpt-tokenizer is an open-source project. It is released under the MIT license.
Is gpt-tokenizer free?
Yes. gpt-tokenizer is free and open source — you can use, modify and self-host it.
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[](https://opensourceai.tech/project/niieani-gpt-tokenizer.html)
