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Token Counter & Cost Estimator

Estimate tokens and API cost for your text across popular models.

Token Counter & Cost Estimator
Estimate tokens and API cost for your text across popular models.

Runs entirely in your browser. Your text is never uploaded.

Tokens are how AI models measure text, and they are what you pay for when using an API. This tool estimates the token count of any text and shows the approximate cost across popular models, so you can size prompts and budget with confidence.

Type or paste your text and set the expected output length. For exact counts, providers offer their own tokenizers, such as the OpenAI tokenizer. Learn how tokens affect prompting in our fundamentals guide.

How to estimate tokens and cost

1

Paste your text

Add the prompt or content you want to measure.

2

Set expected output

Enter roughly how many tokens you expect the answer to use.

3

Read the estimate

See the token count and a cost breakdown per model, updated as you type.

FAQ

Frequently asked questions

It is a close approximation based on character and word counts. Exact tokenization varies by model, so use the providers' official tokenizers when precision matters.
Models have context limits measured in tokens, and API pricing is per token. Knowing your token count helps you avoid truncation and control cost.
The tool uses representative public prices for common models. Always check the provider's pricing page for the exact, current figures before relying on them.

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