AI Gateway Margin Without Spreadsheets

Retry leakage and refunds can erase profit quickly unless the calculator makes the contribution margin obvious.

Gateway economics get messy when retries, support, and refunds stay hidden. A good calculator surfaces those costs instead of pretending gross revenue is profit.

The most useful output is not a giant table. It is monthly profit, net margin, and break-even request volume. That is what helps a founder price the next offer.

This is exactly the kind of page that leads into a larger Stripe-backed presale or gateway implementation project.

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