Enterprise AI, Second Wave: When Pilots Have to Show Up in Margin
US CFOs are done funding AI on faith. The second wave is a P&L conversation about which workflows actually pay.
For most of 2024 and 2025, US enterprise AI budgets sat on the CIO side of the house, sponsored by curiosity and a fear of falling behind. In the last two earnings cycles, that has shifted. CFOs and audit committees are asking a much narrower question: where in our income statement can you point to a line that moved because of the AI program?
The answer, honestly stated, is that only a small handful of workflows have paid so far, and they are not the ones that got the most press. Contact-center deflection, contract review inside legal ops, first-draft engineering scaffolding, and a specific class of finance-close automations are the categories where operating-margin impact is now defensible. Almost everything labelled "copilot for knowledge workers" is still an experiment on someone else's budget.
What makes this the second wave rather than a retreat is that the survivors have common structural features. They wrap a narrow workflow, they have a clear before-and-after unit-cost baseline, they replace paid labor at the marginal task rather than at the seat, and they run behind an evaluation harness that lets a controller verify quality drift week over week. Where any of those four elements is missing, the pilot is almost certainly still an R&D expense that should not be reported as savings.
For a CFO, the immediate implication is that AI spending needs a new line of governance. It is not IT capex and it is not marketing. It is closer to a corporate-development portfolio, where each investment has an explicit business case, a review gate, and a kill criterion. Firms that continue to fund AI as a general capability rather than as a set of specific workflow bets are, in our observation, spending more and returning less.
The question worth taking to your next operating review is short: for each AI initiative currently live, can the sponsor name the workflow, the unit-cost baseline, and the person on the P&L who has agreed to book the saving? If not, the initiative belongs on the innovation budget, not the operating one.