AI Token Counter
Paste any text and see how many tokens it costs in ChatGPT, Claude and Gemini. Useful for staying inside context windows and estimating API costs.
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Tokens (est.)
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Characters
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Words
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Cost (Pro tokens)
Heads-up: This is a fast client-side estimate using a heuristic (1 token ≈ 4 chars for English). For exact counts use OpenAI's tiktoken or Anthropic's tokenizer. Different models use different tokenizers — non-English text and code can use 2-3× more tokens.
Want unlimited tokens on Claude / ChatGPT / Gemini? Pro plan: 1,000,000 tokens/month.
See plans →What's a token?
A token is the unit AI models read and write in. It's not a word — typically 3-4 characters or part of a word.
- 1 token ≈ 4 characters of English text
- 1 token ≈ 0.75 English words
- 100 tokens ≈ 75 words (about a short paragraph)
- 1000 tokens ≈ a typical email
- 1M tokens ≈ a thick novel
Read the full definition in our glossary entry on tokens, or learn how context windows work.