About TokenCost Lab

Why it exists

API bills for AI features surprise teams because price per million tokens hides how much a real chat actually uses. We built this to turn a prompt length, a reply length and a call volume into a monthly figure you can compare across providers.

TokenCost Lab is a free, independent web tool. Compare LLM API costs across OpenAI, Anthropic and Google.

We build small, fast tools that run entirely in your browser: no sign-up, no data uploads. The site is funded by advertising and an optional ad-free premium plan.

Accuracy

We work hard to keep formulas and reference data up to date, and every guide shows when it was last updated. Results are estimates; always double-check important decisions with a qualified professional.