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The Hidden Cost of AI Tool Sprawl
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The Hidden Cost of AI Tool Sprawl

AWSM LABS · August 31, 2026 · 13 min read

Financial ROI as the Second Proof That AI Spend Is Creating Real Value in Private Equity


EXECUTIVE SUMMARY

Operational ROI — the subject of Article #1 in this series — asks whether a workflow got better. Financial ROI asks a colder question: whether the money spent on AI is buying anything the firm can point to. The two questions have different failure modes. A workflow can look faster while its total cost quietly rises, because the AI layer gets added on top of the old process instead of replacing part of it. Enterprise AI-native application spend rose 108 percent in the past year, and firms are absorbing the increase without a clear line between spend and outcome. Most PE firms and portfolio companies can list which AI tools they use. Almost none can say, in one number, what those tools cost in total, whether that number is going up or down, and whether it is buying anything more than the appearance of adoption. This article lays out a method for finding that number: mapping every AI cost to the specific workflow it touches, checking whether that workflow’s total cost actually moved, and rolling the answers up into one figure the firm can defend in a partner meeting.


THE MEASUREMENT PROBLEM

I. Every Line Item Looks Fine. The Portfolio Doesn’t.

AI spend is easy to approve and hard to see. A single subscription clears procurement’s bar without a second look — it is a few hundred dollars a month, cheaper than a headcount, and the team asking for it can point to a specific task it speeds up. Multiply that across a portfolio of eight or twelve companies, each making its own tool decisions, and the firm ends up with a number nobody has assembled: not the CFO, not the operating partner, not the portfolio company’s own controller.

This is not a governance failure in the traditional sense. Nobody is hiding anything. The spend is distributed by design — procurement happens team by team, tool by tool, company by company — and distributed spend has no natural place to add itself up. The average enterprise now runs 305 SaaS applications and spends $55.7 million a year on them, an 8 percent increase over the prior year even as the number of applications held roughly flat. The growth is not coming from more tools. It is coming from what each tool now costs, as AI features get layered into existing subscriptions and priced on consumption rather than seats.

That shift matters more than it sounds. A fixed-fee subscription is predictable — the same line item, the same amount, every renewal. A consumption-priced AI feature is not. It scales with usage the firm did not budget for, in billing cycles nobody is watching closely enough to catch until the invoice arrives. Seventy-eight percent of IT leaders report unexpected charges tied to AI features or usage-based pricing in the past year. Sixty-one percent cut a planned project because of an unplanned SaaS cost increase. The bill is not just growing. It is becoming harder to predict, at the exact moment boards are asking portfolio companies to prove AI is paying for itself.

Private equity is exposed to this problem twice — once inside the firm, where deal teams and operating partners are adopting their own tools, and once across the portfolio, where every company is making the same distributed, unattributed purchasing decisions independently. Eighty-eight percent of PE firms have already put more than a million dollars into generative AI for their M&A teams alone, and most plan to keep increasing that spend. The number is growing. The attribution is not keeping pace.

DIAGNOSTIC METHODOLOGY

II. Attribute Spend to Workflow Before You Try to Control It

The instinct, once AI spend becomes visible as a problem, is to cut it — freeze new tool purchases, consolidate vendors, route everything through one approval process. That instinct is premature. You cannot responsibly cut what you have not attributed. A tool that looks redundant on a spreadsheet might be the only thing keeping a specific workflow functional. A tool that looks essential might be doing nothing that the team wasn’t already doing manually at lower cost.

The diagnostic discipline at AWSM LABS for Financial ROI is Spend-to-Workflow Attribution — a method that maps every AI cost line item to the specific workflow it touches, rather than treating “AI spend” as one undifferentiated category. It asks three questions of every tool, seat, and API contract in the portfolio: What workflow does this touch? Did that workflow’s total cost — labor plus tools — actually change? And is another tool, somewhere else in the firm or portfolio, already serving the same workflow?

The first question forces specificity. “We use it for research” is not a workflow; “first-pass company screening before an analyst opens the data room” is. Attribution only works at the level of an actual task with an actual before-and-after.

The second question is where most measurement breaks down. A tool can accelerate a task without changing what the task costs, because the AI subscription gets paid for on top of the labor it was supposed to replace — the analyst still spends nearly as much time on the workflow, now reviewing and correcting AI output instead of doing the work directly, and the firm is paying twice: once for the person, once for the tool. Financial ROI is not “does the tool speed up the task.” It is “did the total cost of the workflow go down, stay flat, or go up once the tool’s cost is included.”

The third question surfaces the pattern that individual approval processes cannot see: redundant coverage. A portfolio of eight companies, each independently licensing a similar AI tool for a similar workflow, is not eight smart local decisions. It is one systemic overspend that no single approver was positioned to catch, because no single approver saw more than their own company’s purchase.

Applied consistently, Spend-to-Workflow Attribution produces three outputs that a simple expense report cannot: a list of workflows where AI spend is not showing up in lower total cost, a list of redundant tools solving the same problem in different places, and a list of consumption-priced contracts carrying volatility the firm has not budgeted for. Those three lists, not the raw invoice total, are what a Financial ROI review should be built on.

USE CASE: PORTFOLIO-WIDE AI SPEND

III. What the Attribution Exercise Surfaces

Run the exercise across a mid-market portfolio company with a typical AI footprint — a sales copilot, a support ticket summarizer, a document-review assistant in the deal team, and two or three departmental tools nobody remembers approving — and the same pattern shows up almost every time. Individually, every tool has a plausible justification. Collectively, the picture looks different.

The sales copilot and the support summarizer often turn out to be drawing on the same underlying data enrichment layer, licensed twice, once by each team, because neither knew the other had already solved the problem. The document-review assistant is frequently consumption-priced in a way nobody flagged at signing — usage grew as the team got comfortable with it, and the monthly bill grew with it, well past what the original business case assumed. And the departmental tools nobody remembers approving are, almost without exception, still being paid for months after the person who championed them stopped actively using them.

None of this is visible from a vendor list. It becomes visible only when every line item is attributed to a workflow and that workflow’s total cost — tool plus labor — is checked before and after. The firms with redundant, unattributed AI spend are not spending recklessly. They are spending the way distributed procurement always spends: correctly at the point of each individual decision, and expensively in aggregate, because no one was looking at the aggregate.

The caution runs the other direction too. Not every redundancy is waste, and not every consumption spike is a problem — a tool whose usage is climbing because it is actually replacing meaningful labor is doing exactly what it should. The point of attribution is not to force every AI expense to justify itself in isolation. It is to make sure the firm can tell the difference between spend that is buying something and spend that is simply accumulating.

MEASUREMENT FRAMEWORK

IV. A Practical Framework for Measuring Financial ROI

Most Financial ROI claims fail for the same reason Operational ROI claims fail: they are built on a single measurement, taken once, without a process for keeping it current as tools, pricing models, and usage all continue to shift. A rigorous approach treats attribution as a recurring discipline, not a one-time audit.

The framework maps to four phases, each producing a different category of financial clarity.

FIGURE 1  ·  THE AWSM LABS FINANCIAL ROI FRAMEWORK

PHASEOBJECTIVEKEY ACTIONSWHAT TO MEASURE
InventoryList every AI cost line item, portfolio-widePull every subscription, seat, and API contract; assign an owner to the listTotal tool count, total monthly spend, pricing model per tool
AttributeMap each tool to a workflow and a cost deltaName the workflow each tool touches; compare pre- and post-AI total workflow costNet cost delta per workflow; percentage of spend attributed
ConsolidateEliminate redundant coverageCross-reference attributed workflows across companies and teams; flag duplicate toolsRedundant spend identified; renegotiation opportunities
GovernAssign ownership and a review cadenceName one owner for the portfolio total; set a review interval matched to renewalsPortfolio-level AI spend trend; consumption-pricing volatility flagged

The most commonly skipped phase is Attribute. Inventory is easy — someone can pull a vendor list in an afternoon. Attribution requires sitting with each workflow long enough to know what it cost before the tool arrived.

The framework shifts the operating question from “what are we spending on AI” to “what is that spend replacing, and did the replacement actually cost less.” The metrics below give financial and operating leaders a starting menu for each side of the portfolio.

FIGURE 2  ·  FINANCIAL ROI METRICS MENU

FOR PE FIRMSFOR PORTFOLIO COMPANIES
Total AI-related spend across the portfolio, by companyTotal AI tool spend as a percentage of the function’s total budget
Number of AI tools with unattributed workflow ownershipNumber of workflows where total cost rose after AI adoption
Percentage of AI contracts on consumption-based pricingRedundant tool count within the same department
Portfolio-wide redundant spend identified per review cycleTime since last full spend-to-workflow attribution

These are not glamorous numbers. They are the ones that let a firm say, credibly, what its AI spend is buying — and what it isn’t.

COMMON FAILURE PATTERNS

V. Why Firms Misread Financial ROI

Financial ROI is easy to misjudge in either direction — firms either assume the spend is fine because no single tool looks expensive, or panic and cut indiscriminately because the aggregate number looks large. Four patterns show up often enough to name directly.

FIGURE 3  ·  FOUR FINANCIAL ROI TRAPS

TRAPOBSERVABLE SYMPTOMTHE REAL PROBLEM
Counting subscriptions, not workflows“We only have a dozen AI tools” — treated as evidence of disciplineTool count says nothing about whether any workflow’s total cost actually changed
Missing consumption-pricing creepBudget assumes a fixed monthly fee; actual bill fluctuatesUsage-based AI pricing was never flagged as a variable cost at signing
No redundancy check across the portfolioEach portfolio company’s AI spend looks reasonable in isolationThe same workflow is being solved — and paid for — more than once across the firm
No single owner for the totalNobody can answer “what do we spend on AI, in total” without a week of asking aroundDistributed procurement produced distributed accountability; the number belongs to no one

The pattern underneath all four: organizations measure whether individual tools are worth their price, not whether the portfolio’s total AI cost is buying more value than it consumes.

“The gap is not the spend. It is that nobody owns the total.”

WHERE TO START

VI. Monday Morning: Where to Start

You do not need a full portfolio-wide attribution exercise to find out whether you have a Financial ROI problem. Two steps, done in order, will tell you before you commission anything.

Start micro. Pick five AI tools currently in use, anywhere in the firm or portfolio. For each one, name the specific workflow it touches and ask whether that workflow’s total cost — labor plus tools — is actually lower than it was before the tool arrived, or whether the tool’s cost simply sits on top of labor that never went away.

Then go macro. Take what you learned from those five tools and ask the harder question: who, right now, could produce a single number for total AI spend across the entire portfolio, broken down by which workflows it is and isn’t paying for itself in? If the honest answer is no one, that is the finding. The gap is not the spend. It is that nobody owns the total.

CONCLUSION

VII. The Bill Comes Due Either Way

Operational ROI and Financial ROI are the same discipline pointed at different questions. Operational ROI asks whether a workflow got better. Financial ROI asks whether the money spent to make it better is money the firm can account for. A firm can pass the first test and still fail the second — a workflow can feel faster while its total cost quietly climbs, because the AI layer never replaced the labor it was meant to reduce.

The firms getting this right are not the ones spending the least on AI. They are the ones who can say, specifically, what each dollar of AI spend is attached to — which workflow, which cost delta, which owner. Everyone else is running the same experiment without measuring the result, and finding out what it cost only when the renewal invoice arrives.

That is where Operational ROI and Financial ROI meet, and where the next lens in this series picks up. A workflow can be faster and cheaper and still leave the people doing the work frustrated, or leave customers no better served — which is a different failure than either of the first two lenses can see.

Getting a real number on portfolio-wide AI spend, attributed to the workflows it actually touches, is not a finance project. It’s a Tuesday-afternoon exercise, if you have the right worksheet.

The companion resource to this article — the Financial ROI Attribution Deck — walks through the full tool-to-workflow mapping exercise, with the worksheet used in this piece ready to fill in with your own numbers. Download it at awsmlabs.com.


WORKS CITED

Zylo. 2026 SaaS Management Index. Zylo, 2026.

Deloitte. 2025 M&A Generative AI Study. Deloitte, 2025.

BetterCloud. State of SaaS 2026. BetterCloud, 2026.

Bain & Company. Global Private Equity Report 2024. Boston: Bain & Company, 2024.

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