How It Works

What happens to your data, how accurate the numbers are, and where the prices come from.

Privacy

Every tool runs in your browser. Text you paste, PDFs you open and chats you export are processed on your device and are never sent to a server. Share links store your settings inside the link itself, not on a server, and never include your text.

Token Accuracy

For OpenAI models, counts use OpenAI's tokenizer and are exact when it loads. Anthropic and Google do not publish tokenizers that run offline, so those counts are estimates, usually within 10 to 15 percent, and the tools label them as estimates.

Price Data

Prices come from the open-source LiteLLM catalog and are refreshed daily by an automated job that checks for suspicious changes before publishing. They are not independently verified against each provider's billing, so confirm on the provider's pricing page before relying on a figure. The last-verified date appears on the home page.

Limits

Forecasts are models, not quotes. Real bills depend on caching behavior, retries, tool calls and provider-specific rules that no calculator can fully capture.