The AI assistant was built for the bank's risk and compliance staff, and in a few months it saved about 5,000 hours across 30 auditors. That is roughly 170 hours each, about a month of full-time work per auditor, and quality errors fell by 85%.
A drop that large is only possible when the evidence that an auditor once spent hours collecting is already labelled and stored where the assistant can read it. Capital One has kept that habit since 1988, when its founders built a credit card business on collecting and analysing customer information. The AI underneath runs on open-weight models, whose files any company can download, so the model was not the advantage.
Take a manufacturer's quality team preparing for a certification audit, where it must show a valid calibration certificate for each of 200 instruments. If the certificates are spread across email attachments and personal folders, collecting them takes two days, and AI cannot find a file that nobody can find. If each one is saved under the instrument's number and date, an assistant can check every expiry date in minutes, and the quality manager deals only with the few that have expired.
In checking work, most of the hours that AI saves are hours that people spent looking for things, and only orderly records give those hours back. Putting one set of records in order is the cheapest AI project a company can start this month.