Question 1

What are tokens?

Accepted Answer

Tokens are the basic units that AI models use to process text. A token is roughly 4 characters or 0.75 words in English. AI APIs charge based on token usage.

Question 2

How accurate is this counter?

Accepted Answer

This tool uses heuristic estimation that is approximately 90% accurate for English text and 80% for CJK languages. For exact counts, use the official tokenizer libraries.

Question 3

Why do different models show different counts?

Accepted Answer

Different AI models use different tokenization strategies. Claude and GPT models may tokenize the same text slightly differently.

Question 4

Is my text sent to a server?

Accepted Answer

No. Token estimation runs entirely in your browser. Your text is never transmitted anywhere.

AI Token Counter

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