This calculator estimates what each major AI model would actually cost you per month based on your own usage — not the sticker price per token, but the real bill once hidden reasoning tokens are counted. Every rate is USD per million tokens, pulled from each vendor’s own pricing, with the date it was last checked shown next to each result. Change the numbers below to match your own workload; nothing is sent anywhere, the maths runs entirely in your browser.

How many calls you send in a month
Roughly 750 words = 1,000 tokens
The answer you actually see
Thinking you don’t see — billed at the output rate. Set 0 for non-reasoning use.
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