What this section answers
Budget for an effective cost above what you currently pay, because a material share of the posted price is investor-subsidized, and price the subsidy-withdrawal scenario separately.
decision · section 06 of 10
If you budget AI spend
What envelope should the next budget cycle assume, and what would break it?
Boundary
The user-side subsidized fraction is unmeasured; the cost-side anchor is lab gross margins below sustainable infrastructure return.
Source coordinate
Report heading If you budget AI spend, under What this means for decisions, in The real cost of AI: August 2026.
The section itself
Instrument cost per successful task, not cost per token. The 111x price range across models means a routing decision (cheap model for easy queries, expensive model for hard ones) is the single largest cost lever available — but the routing infrastructure itself has a cost that must be accounted for, and the savings are quality-conditioned: a measured 8-week pilot realized 58% cost reduction at a 91% response-acceptance rate, so the acceptance threshold you set — and the residual quality cost it implies — lands on you, not the router.
Who uses this section, and for what
Engineering leaders and CTOs
The envelope, and the subsidy assumption it silently depends on.
Procurement and finance teams
What to assume when the credit balance runs out.
Founders and product teams
The envelope the margin model has to live inside.
Reader questions that route through here
- How much of my AI spend is subsidized?Answered structurally, anchored on the cost side