A foundry does not ask the floor supervisor to justify the steel. The companies you are losing to know what a feature costs to produce, what one is worth in the market, and what a day of delay costs the business. You cannot defend a line item when you do not know any of those numbers.

Example: Two operations buy the same raw input at the same price. One ships finished goods at three times the unit margin. The other red-boxes the input invoice. The cost line is identical. The business is not.

A pricing engine that lifts gross margin by 40 basis points (0.4%) on $80 million in annual revenue is worth $320,000 of incremental margin a year, assuming the lift converts to margin one-for-one. That is $877 a day on a 365-day clock, or roughly $1,280 a day on 250 trading days. Pick the denominator your CFO uses. If $400 in weekly inference saves one day of delay, the trade returned $877 against $400 in week one. One illustrative example, not a benchmark.

Example: A roadmap item carries an estimated daily value when it ships. The day-rate is the only number that lets you compare the inference invoice to anything other than itself. Without it, every dollar on inference looks expensive.

You pay $75 per month per engineer in phone stipend plus a dozen SaaS subscriptions at roughly $100 per seat — wikis and design tools half the team has not opened in six weeks — and none of those get a red box. The token bill does, because it is new and visible, not because it is large.

Example: A line item with a familiar logo on the invoice clears finance review without comment. A line item with an unfamiliar logo and a rising trend triggers a justification request. The size of the spend is not what is being audited.

A senior engineer fully loaded at $250,000 to $360,000 per year (U.S. metro, 2025–2026) costs roughly $4,800 per week. When you ration tokens at the developer level, the seniors leave first because they have options. You save $200 per week on the invoice while losing $877 a day as your roadmap stretches. The damage shows up two quarters later, not on the dashboard that triggered the policy.

Example: A throttle is announced to control a small line item. The most experienced engineers stop reaching for the tool that lets them work at the speed they expect. Within a quarter, the invoice is unchanged and the bench is shorter.

Budget inference at the portfolio level. Require every roadmap commitment to carry a cost-of-delay estimate. Give product and finance joint ownership of the inference line. The conversation stops being about token spend and starts being about the value the spend produces.

Example: A monthly review puts the inference total next to the cost-of-delay total for the same period. The two numbers are read in the same room by the two leaders accountable for them. The decision is no longer about a single invoice.