# Expense per Inference Canonical URL: https://expenseperinference.com/ Expense per Inference is an LJP descriptive identity for a possible operating ratio that relates defined direct and shared expense to a stated measure of inference activity. It is not an accounting standard, universal allocation method, pricing rule, or FinOps endorsement. FinOps Framework and FOCUS are supporting context for technology cost, usage, and normalized billing data; they do not define this exact identity.