AI
Tools for people who use AI models or build on LLM APIs: count tokens and compare what a prompt costs across providers.
LLM APIs bill by the token
Every major AI API charges per million input and output tokens, and every model family splits text into tokens differently. The token counter shows the count, context window use and estimated cost for several models side by side, so you can compare providers before you pick one.
Prices with a date
Prices come from each provider’s official pricing page and are shown with the date they were checked. AI pricing changes often, so confirm on the provider’s page before committing to a budget.
Privacy
Prompts and documents you paste are processed in your browser only and never stored or sent to a server. The only downloads are tokenizer files from a public CDN and Hugging Face.