
Baseline, control group and hidden costs: how to measure the true return on AI investments.
Many AI projects are declared ‘successful’, but three months later nobody can state the numerical value of that success. The problem is usually not the technology but measurement design. The right framework is set up before the pilot starts.
1. Baseline
Measure the current performance of the process: time per transaction, cost, error rate, customer satisfaction. Without a baseline an improvement claim is just anecdote. Work with at least four to six weeks of data and consider seasonality.
2. Primary and secondary metrics
Choose a single primary metric for each project (for example automated resolution rate or document processing time). Quality (errors, complaints) is tracked as a guardrail metric: if quality falls as automation rises, the gain is misleading.
3. Control group
If possible keep part of the traffic on the old process (A/B). It shows the real effect by excluding season, campaigns and external factors.
4. Seeing the full cost side
- Platform and API fee (monthly)
- Setup, integration and pilot investment (one-off)
- Internal team time: data preparation, testing, training
- Monitoring, improvement and content maintenance (ongoing)
5. Savings or capacity?
Hours saved do not always mean salary savings; often it means the same team does more work. Be clear about it: the ‘hours saved × hourly cost’ formula is correct only if those hours are actually redirected to other valuable work.
6. Payback and first-year ROI
Net monthly benefit = gross saving – platform fee. Payback = one-off investment / net monthly benefit. First-year ROI = (12 × net monthly benefit – investment) / investment. Example: 8,000 transactions, 6 minutes, 55% automation, 320 TRY/hour and a 38,000 TRY platform fee give a net monthly benefit of about 102,800 TRY and a payback of 4.4 months.
The decision at pilot close
At the end of the pilot one of three outcomes emerges: target reached (go to production), partially reached (change scope) or not reached (stop). A decision threshold written in advance prevents political interpretations.
You can enter your own values in our calculator for a first estimate and validate it with your data in the feasibility workshop.
Common mistakes
- Settling for qualitative feedback such as ‘it felt good’ at the end of the pilot.
- Reporting only the best week under ideal conditions.
- Leaving internal team time out of the cost.
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