AI coding agent cost calculator

AI coding tools read your files and run tests, looping back on problems as they go, so they use far more than a simple chat. Work out the monthly cost per developer and weigh it against the time your team actually saves.

Prices verified against official provider pricing pages on 2026-06-29.

The formula

We count how many AI calls each developer makes in a month, then cost each call: the text read (cheaper for the part reused from cache) plus the text written. The payoff side is simpler - the hours the tool saves × what an hour of that developer's time is worth.

Questions

How much does an AI coding tool cost per developer?

Tens of dollars a month for normal use, more for heavy use. Reusing the codebase from cache brings that down a lot.

Is a flat subscription or pay-as-you-go cheaper?

For light, steady use a flat monthly subscription is usually simpler and cheaper. For heavy use it depends on volume - work out the pay-as-you-go cost here and compare it.

How much faster does it need to make me to be worth it?

Surprisingly little - developer time is expensive, so even a 1–3% boost usually covers the cost. The calculator shows your exact break-even.

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