Unit Economics
Measured variable cost of serving a tenant. Cross-tenant. Never shown to a customer.
Cost per unit of work
Figure 5 — what the product does without a model
These are two different numbers and must never be conflated. A request can invoke a model to classify intent and still produce its answer entirely from the calculation engine: deterministic in its answer, non-zero in its token cost. Use whichever is literally true for the sentence being said.