Enterprise AI was supposed to get cheaper and more reliable as it scaled. But for most organizations, it has done the opposite. Agents make errors, humans step in to catch them and the cost of every correct answer goes up instead of down. That gap between what AI was expected to cost and what it actually costs is the hallucination tax, and it’s now the most-significant gap between AI experimentation and AI ROI.
In August 2026, Collibra commissioned The Harris Poll to survey 306 U.S. data management, privacy and AI decision-makers, all at the director level or higher, to find out where that tax is being paid. So when we asked them where their AI initiatives actually break, we weren’t asking for a hunch. We were asking the people who own the outcome.
Their answer was consistent. More than seven in ten (72%) agree that when an AI initiative falls short at their organization, the root cause almost always traces back to an unaligned or poor data foundation.