Prompt Cost Calculator

Estimate the token cost of a single prompt.

Model

Your prompt

Expected output tokens

What Is a Prompt Cost Calculator?

The Prompt Cost Calculator estimates the cost of a single prompt by measuring its tokens and applying the selected model's input and output rates. Paste your prompt, set the expected output length, and see exactly what a request would cost.

How to Use This Prompt Cost Calculator

1
Pick a modelChoose the model the prompt targets.
2
Paste the promptThe input token count is estimated automatically.
3
Set output lengthEnter the expected number of output tokens.
4
Read the costSee input, output, and total cost for the prompt.

Frequently Asked Questions

The prompt is tokenized locally with the same per-script approximation used across the toolkit.

The number of output tokens varies with the task and model. Estimating from past calls or the max_tokens setting gives a useful upper bound.

Yes. Multiply the per-prompt cost by the number of requests to estimate total spend, remembering that long conversations grow the input tokens each turn.

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