Free Tools /AI
AI Token Counter & Cost Calculator
Paste any prompt or document: see its token count, what one call costs, and what it costs at your volume.
- Free, no signup
- Runs in your browser
- Nothing stored
Calculating…
Who uses it, and for what
Check what an AI support assistant will cost per month before you commit to building it.
See how much of the context window a long document or a RAG prompt uses up.
Compare a long system prompt with a trimmed one: the saving shows up in dollars, not just words.
How this tool works
Estimates tokens from text
It averages a character-based rule (about 4 characters per token) and a word-based rule (about 1.33 tokens per word), which lands close to real tokenizers on English text.
Prices input and output separately
Models charge more for output than input, so the answer length you expect matters as much as the prompt.
Projects to your volume
Multiply by calls per month to see the bill before it arrives.
Frequently asked questions
How accurate is the token count?
Usually within 10 to 15% for English. Exact counts vary by model family because each uses its own tokenizer; code, numbers and other languages use more tokens per word.
Which prices should I enter?
The input and output price per million tokens from your provider's pricing page, for the exact model you plan to use.
Is my text sent anywhere?
No. The count runs in your browser.
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Done for you
Want this running inside your business, automatically?
We build the workflow behind tools like this one, wired to your CRM, inbox and apps, and keep it running. Fixed price, from $390 a month.