Chatbot Cost Calculator
Estimate the monthly LLM cost of an AI chatbot or app.
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Frequently asked questions
The calculator multiplies your conversations per day by the input and output tokens each conversation uses, applies your per-million-token prices, and scales the result by the number of days per month. With 200 conversations a day, 800 input and 400 output tokens each, balanced example pricing of $3 per 1M input and $15 per 1M output, and 30 days, that works out to about $50.40 per month. Every value is editable, so the estimate follows your own numbers.
Most LLM APIs charge a lower rate for the tokens you send (the prompt and context) than for the tokens the model generates back. The calculator keeps the two prices in separate fields so an output-heavy chatbot, like one that writes long answers, is estimated correctly rather than averaged into a single rate.
The presets are example prices only and are not tied to any specific provider or model. Real pricing changes often and varies by model, region, and tier. Load a preset as a starting point, then overwrite the input and output price fields with the current figures from your provider before you rely on the estimate.
No. The calculator runs entirely in your browser. The conversation counts, token figures, and prices you type stay on this page and are never uploaded or stored on a server.
Last updated 2026-06-23.