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How to Evaluate an AI Vendor's Claims

For people

Questions to ask before buying an AI product: accuracy, data handling, testing on your data and total cost.

Editorial team 2 min read

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AI products are often sold with impressive demos. A structured evaluation protects you from expensive surprises.

Accuracy Claims

  • Measured on what? Ask how accuracy was measured, on which data and against which baseline.
  • Which metric? Accuracy alone can hide poor performance on rare but important cases; ask for precision, recall or error rates by category.
  • Across groups? Does performance hold for all the people or situations it will affect?

Test on Your Own Data

Insist on a pilot using a representative sample of your real data, scored against answers agreed by your own experts. Include awkward cases. Vendor examples tell you little about your situation.

Data Handling

  • Where is your data processed and stored, and for how long?
  • Is it used to train the vendor's models?
  • What security certifications and contractual commitments do they offer?

Transparency and Control

Can you see why the system made a decision? Can people override it? What happens when the vendor updates its model — will you be told, and can you re-test?

Total Cost

Look beyond licence fees: integration work, usage-based charges at your real volume, human review, monitoring and exit costs if you switch.

Red Flags

Refusal to allow a pilot on your data; accuracy claims without methodology; "no bias" guarantees; and unclear answers about data use.

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