How to calculate token cost without fooling yourself

The simplest mistake builders make is to estimate cost from one prompt and then assume that same number applies to real production traffic. A useful estimate needs four things: model price, average input tokens, average output tokens, and daily call volume.

Start with a per-call estimate

Multiply input tokens by input price, then multiply output tokens by output price. Keep the math in the same unit, usually per million tokens, so you do not accidentally overstate or understate the result.

Then turn it into a monthly estimate

Once you have cost per call, multiply by expected daily usage and by the number of days in a billing month. That gets you close enough to judge if a feature needs a pricing adjustment before launch.

Use a range, not one perfect number

A serious product decision should test at least three cases: optimistic, expected, and painful. Tool Canopy is meant to help you build those reference numbers fast, then refine them as your data becomes more real.