How do I measure AI ROI?
Measure the task before and after, not the AI on its own: time per task, cost per task, error rate and volume, compared with a baseline taken before launch. Then subtract the full cost of the AI, including build, model and tool fees, monitoring and the human review it still needs.
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A method that holds up
- 1Pick one workflow and record a baseline: volume, time per task, cost per task, error or rework rate.
- 2Define what the AI changes: tasks fully automated, tasks sped up, tasks still done by people.
- 3Run a pilot on real work, ideally with a comparison group doing it the old way.
- 4Measure the same numbers after, including time spent checking and fixing AI output.
- 5Count all costs: build, model and API fees, hosting, monitoring, review time and maintenance.
- 6Report the net result and the quality change together, not savings alone.
Common traps
Counting time saved that is not used for anything else, ignoring review time, measuring on easy examples only, and leaving out running costs that grow with usage. Quality matters too: a faster process with more errors can cost more downstream.
Check it for your case.
Common follow-up questions.
How long before AI shows ROI?
It depends on the workflow and volume. Measure from the pilot onward so you can see the trend rather than guess.
What if the benefit is quality, not cost?
Measure it directly: fewer errors, faster response times, higher customer satisfaction. Put a value on each where you can.
Which workflows show ROI fastest?
High-volume, repetitive tasks with clear right answers, such as document extraction, ticket triage and data entry.
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