AI Running Cost Calculator

Estimate the monthly bill for an AI model from the number of requests, their length and the provider's token prices.

One question and its answer, one email drafted, one document summarised.

Everything the model reads: instructions, the question and any documents. A token is about three-quarters of a word.

The length of the answer. 400 tokens is about 300 words.

From the provider's pricing page. Prices change often, so check them.

Instructions repeated on every request can be cached and are billed at about a tenth of the price.

Results

Requests a month: 11,000

Tokens a month: 20.9 million

Monthly cost: $179.03 AUD (US$115.50)

Cost per request: 1.63 cents

Yearly cost: $2,148 AUD

Share of the bill from answers: 57%

Excludes GST, the cost of any tools or searches the model uses, and retries. Agents that work through several steps re-read their notes each step, so their token use can be five to twenty times a single question.

How it works

Requests a month are requests a day x days. Input cost is the input tokens x the price per million, with any cached share at a tenth of the price; output cost is the output tokens x its price. The total in US dollars is converted at your exchange rate.

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