You are billed for the text going in and coming out, per million tokens, at different rates. A rough day of coding is cents rather than dollars, which is why a monthly subscription is often the more expensive shape.
This is one of the questions people ask before they pick a tool rather than after, which is the right order. The rest of the answers are in the FAQ.
A desktop AI agent for Windows, built in Auckland, New Zealand. It reads your files, runs your terminal and drives your browser. Billed per token with a free monthly allowance and no subscription. See pricing, the FAQ, or who builds it.