Break-even usage
The usage level at which a customer's LLM cost equals what they pay.
Past this point the customer is unprofitable. On a flat plan, break-even usage is plan price ÷ cost per token-unit. Knowing it tells you which power users are about to cross into the red.
Why it matters
It tells you exactly when to nudge a customer to a higher tier, add a usage cap, or rethink a price — before they cost you money, not after the invoice lands.
Example
On a $29/mo plan using GPT-4o, a customer breaks even around 1.6M output tokens a month (with a proportional ~5.3M of input). Every token past that comes straight out of your margin.
Calculate it with the free margin calculator →
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