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Coriven Use Case — AI FinOps

AI Cost Optimization: How a CFO Turned a $564K AI Bill Into a Board-Ready Investment Report

$47,000/month across 6 departments. No chargeback. No ROI. No one could answer the board's simplest question: is this working?
Verified — measured directly from source data
Calculated — derived with methodology
Estimated — projected from baseline data

A SaaS Company Where AI Spend Grew Faster Than Revenue

A 300-employee SaaS company generating $120M in annual revenue. Six departments. Fourteen AI tools. A monthly AI bill that had tripled in 18 months — from $15,800/month to $47,000/month — and nobody could explain why. The CFO brought it to the board as a line item. The board asked three questions: What are we spending? What are we getting? Is it worth it? The CFO could answer the first. She couldn't answer the other two. That's when she called us.

300
Employees, B2B SaaS
$47,000/mo
Total monthly AI spend
0
Tools with ROI attribution

Where the $47,000 Actually Goes — By Department

The first thing the board needed was attribution. Not "AI spend is $47K." But whose $47K? We mapped every dollar to the department that consumed it. The results changed the conversation entirely.

Engineering
$27,730
59% of total
Marketing
$8,460
18% of total
Sales
$6,110
13% of total
Support
$3,290
7% of total
Other
$1,410
3% of total
Conservation Check — Every Dollar Accounted For

Engineering $27,730 + Marketing $8,460 + Sales $6,110 + Support $3,290 + Other $1,410 = $47,000.00. Total verified spend: $47,000.00. Variance: $0.00. Every number in this report ties back to source billing data with SHA-256 hash verification.

$18,400/Month in Identified Waste — 39% of Total Spend

Not all spend is waste. But $18,400/month of this company's AI bill was producing zero measurable value. We categorized every waste dollar by type, tagged it with confidence level, and gave the CFO a number she could defend to the board.

$12,200/mo
Unused seats — licenses paid for, nobody logging in
$3,400/mo
Duplicate tools — same capability, multiple vendors
$2,800/mo
Premium model misuse — GPT-4o on commodity tasks
Finding Score State at Audit State After
Unused Seat Waste — $12,200/mo
Cost Waste · License Management
4.80 Do First 142 seats across 6 tools with zero logins in 90 days — $12,200/month in dead licenses Seats reclaimed — 142 licenses cancelled or reassigned, saving $12,200/month immediately
Duplicate Tool Spend — $3,400/mo
Cost Waste · Tool Rationalization
4.50 Do First 2 content generation platforms, 2 meeting summarizers, overlapping code assistant coverage — $3,400/month in redundancy Consolidated to single tool per category — 4 duplicate subscriptions cancelled
Premium Model Misuse — $2,800/mo
Cost Efficiency · Model Tiering
3.90 Do Next GPT-4o used for email drafts, data formatting, basic summarization — tasks where GPT-4o-mini produces identical output at 85% lower cost Model routing rules implemented — premium models reserved for complex reasoning, commodity tasks on efficient models
No Department Chargeback Model
Governance · Financial Attribution
4.60 Do First All AI spend rolled into a single IT line item — no department visibility, no accountability, no incentive to optimize Department-level chargeback live — each department sees their AI spend, usage, and unit economics monthly
Zero ROI Measurement Framework
Governance · Business Case
3.70 Do Next Not one AI tool had a defined success metric, baseline measurement, or ROI owner — $564K/year with no proof of value ROI framework established — 8 high-value tools now have defined metrics, baselines, and quarterly measurement cadence
No Renewal Negotiation Data
Cost Efficiency · Vendor Management
2.80 Plan For 3 major AI vendor contracts renewing in next 6 months — no usage data, no leverage, no negotiation strategy Usage dashboards built for all 3 vendors — negotiation briefs prepared with utilization data and competitive alternatives

The Numbers the Board Actually Wanted

Raw spend is meaningless without context. The board didn't want to know "we spend $47K/month on AI." They wanted to know what that buys. We built unit economics for every major AI investment — cost per output, cost per employee, cost per business action. Every number confidence-tagged.

$41.76
Cost per pull request (Engineering AI)
$156.67
AI cost per employee per month
$4.20
AI cost per support ticket resolved
$127
Cost per marketing asset produced — was $340 before AI
$18.50
Cost per sales email sequence generated
2.3x
Engineering velocity increase (PRs/dev/week) with AI assist

These unit economics transformed the board conversation. Instead of "we spend $47K/month," the CFO could say: "Our AI-assisted engineering cost per PR is $41.76, our support resolution cost dropped to $4.20/ticket, and marketing asset production cost fell 63%. The waste we've identified and eliminated is $18,400/month. The remaining $28,600/month is producing measurable returns."

From Unattributed Expense to Board-Ready Investment Report

Before — The Board Couldn't Get Answers
$47,000/month in a single IT line item — no department attribution, no chargeback, no accountability
Zero ROI measurement: not one tool tied to a business outcome — "we think it's helping" was the best anyone could offer
No unit economics: nobody could say what a dollar of AI spend actually produced
142 unused seats: licenses paid monthly for employees who never logged in — $12,200/month in dead spend
No renewal leverage: 3 major contracts renewing with no usage data and no negotiation strategy
After — Every Dollar Attributed and Defended
Department chargeback live: each department sees their AI spend, usage, and unit economics — accountability drives optimization
ROI framework established: 8 high-value tools with defined success metrics, baseline measurements, and quarterly review cadence
Unit economics calculated: cost per PR, cost per ticket, cost per asset — the board gets business metrics, not vendor invoices
$18,400/month waste eliminated: unused seats reclaimed, duplicate tools consolidated, model routing optimized
Renewal briefs prepared: usage dashboards and competitive alternatives ready for all 3 upcoming vendor negotiations

The Board Report That Actually Worked

$18.4K/mo
Monthly waste eliminated — $220,800/year in verified savings
142 seats
Unused licenses reclaimed
4 tools
Duplicate subscriptions cancelled
B+
Board report confidence grade
SHA-256
Hash-verified audit trail
$28,600/mo
Optimized AI spend — down from $47,000, every dollar attributed
6
Departments with chargeback visibility (was 0)
8
Tools with defined ROI metrics (was 0)

The board report included confidence tags on every number. Green for verified from billing data. Indigo for calculated with documented methodology. Gold for estimated from baselines. The CFO's exact words: "This is the first time I've presented AI spend where I could defend every number."

From Cost Control to Strategic Investment

The waste is eliminated. The chargeback is live. The unit economics are measured. Phase 2 turns cost control into strategic advantage — using the data to make smarter AI investments and negotiate better vendor terms.

Can your CFO defend your AI spend to the board?

We map every AI dollar to the department that spends it, the output it produces, and the ROI it delivers — confidence-tagged, hash-verified, and board-ready.

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Disclaimer: This use case is based on a simulated engagement using the Coriven Method. Company details are representative. All findings reflect the methodology Coriven applies to real engagements. Green numbers are verified from source billing data. Indigo numbers are calculated with documented methodology. Gold numbers are estimated from baselines. Actual results vary.

Every number in this use case is confidence-tagged by color — because we believe if we can't prove it, we should say so.

The Coriven Creed