Why the numbers vary from 80% to 95%
Different studies measure different things, which is why the failure rate is quoted as a range rather than a single figure. RAND’s 80% comes from interviews about AI projects that never reach reliable production. MIT’s 95% measures a narrower, harsher bar: enterprise generative-AI pilots that produce no measurable impact on the P&L.
They point the same direction. Whether you define failure as never shipped or shipped but moved no money, the large majority of AI initiatives don’t pay off. McKinsey’s finding that only 39% of adopters see any enterprise EBIT impact, despite 88% using AI, is the same story from the value side.