AI Cost CalculatorThe formula
AI models read text in chunks called 'tokens'. One token is about ¾ of a word, or roughly 4 letters. We estimate the tokens in your text from its length, then multiply by the model's price to show what it would cost - both as something you send in and as something the AI writes back.
Questions
How many tokens is a word?
In English, roughly 4 words for every 3 tokens - so a token is about ¾ of a word. Code and other languages use a bit more.
Is this count exact?
It's a close estimate. The exact number comes from each model's own tokenizer, which this tool approximates - without ever sending your text anywhere.
Does my text get uploaded?
No. The counting and the cost estimate all happen right here in your browser. Nothing is sent to a server.