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Choose what your AI app does. Estimate its monthly API cost from verified provider prices, with every line explained.

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Example estimate
Support chat + research agent
5,000 users a month

  • AI responses
    GPT-6 Luna$78.75
    437,500,000 tokens175,000 requestsFit for general chat, research agent: not enough data yet
  • Web search
    Exa Search$350.00
    50,000 searches
  • Reading web pages
    ScraperAPI Basic Page$49.00
    75,000 pages

Total$477.75/mo

Verified

Catalog 2026-09-26-7e5c5fac
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We do the token math.
You get the bill.

This is what pricing one model for that example looks like by hand. Now repeat it for every provider, plan and scale.

  1. 100,000 chat calls + 75,000 research calls = 175,000 calls
  2. 175,000 × 2,000 input tokens = 350,000,000
  3. 350,000,000 × $0.10 / 1,000,000 = $35.00
  4. 175,000 × 500 output tokens = 87,500,000
  5. 87,500,000 × $0.50 / 1,000,000 = $43.75
  6. $35.00 + $43.75 = $78.75 for GPT-6 Luna
  7. + search, + scraping, + plan fees, + hard caps, + 39 other stacks to compare
Or just$477.75a month, for the whole stack

Three steps. No spreadsheet.

The calculator turns what your app does into billable units, prices every compatible stack and shows its work.

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  1. Describe

    Pick what the app does and how many people use it. Chat, research, images, video.

  2. Compare

    Every compatible stack gets priced, 40 of them for the example, sorted by monthly cost.

  3. Inspect

    Open any line to see the plan, the billable quantity, the formula and the official source it came from.

Every number gets a stamp.

Prices change. We say how fresh each one is instead of hoping you won’t ask.

  • Verified

    Checked this fortnight

    Read from the provider’s own pricing page within the last 14 days.

  • Expired

    Getting old

    Older than 14 days. Still shown, never passed off as fresh.

  • Archived

    Kept as it was

    A saved receipt, shown with the prices it was made with.

  • No data

    We don’t guess

    Not enough independent evidence yet, so no rating instead of a made-up one.

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