Token Counter

Count exact tokens for GPT-4o and GPT-4 tokenizers.

Processed locally in your browser. Nothing you paste is sent anywhere.

Tokenizer

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Tokens

Words

Characters

Token counts use OpenAI's actual tokenizer for the selected model family. Other model families (Claude, Llama, Gemini) use different tokenizers — expect counts within roughly ±10–20% for English text, more for other languages or code.

Overview

Counts the exact number of tokens a piece of text will use, using OpenAI's real tokenizer (tiktoken) — the same library OpenAI's own SDKs use, not an estimate.

How to use it

1Paste your text.
2Choose the tokenizer matching your target model family.
3The token, word and character counts update live.

Tips

Claude, Llama and Gemini use different tokenizers than OpenAI's — for those models, treat this as a close approximation rather than an exact count.

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Token Counter

Overview

How to use it

Tips

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