Evidence

The adaptation gap

September 2026 single-source

76% of employees report using AI in some capacity (McKinsey, April 2026). 2% say all or most of their work is actually done with it (Pew Research Center, October 2025). That second number has not moved since 2024.

The comfortable reading is that this is a survey artifact — two instruments, two samples, one generous question and one strict one. That reading is wrong, and it is the reason the gap keeps getting reported as noise. The figures are not in tension. They are measuring different objects. One counts people who have touched the technology. The other counts work that is now done differently. The second has not moved in two years.

Access grew. Use did not.

At the organization level the same gap shows up harder. Deloitte’s State of AI in the Enterprise 2026 (n=3,235 leaders across 24 countries, January 2026) found enterprise-approved AI access expanding over a single year from under 40% of workers to nearly 60%. Among the workers who have that access, fewer than 60% use it regularly in their daily workflow — a share the report describes as largely unchanged year over year.

Access grew. Use held still. And underneath both sits the flattest statement of the problem in the 2026 literature: 84% of organizations have not redesigned jobs or workflows around AI.

Read the Deloitte number slowly. In the overwhelming majority of organizations, the handoffs, the review steps, the sequence of a task and the definition of acceptable output are the same as they were before the technology arrived. Whatever people are doing with AI, they are doing it inside a shape of work drawn without it. Nothing in that shape asks them to work differently, and most of them don’t.

The people doing the work are less convinced

Google Workspace and Hypothesis Group (Beyond AI Optimism, December 2025, n=2,643) found executives 15 percentage points more likely than their own employees to feel positive about AI’s impact.

15 points is not a dramatic spread. It matters because of who stands on each side of it. The optimistic side commissions the reporting, sets the targets, and decides when something is working. The other side does the work being measured. When the people closest to the change are the less convinced ones, the reporting is being read from the wrong end of the organization.

Most use is one-off

Section’s AI Proficiency Report (July 2026 edition, n=5,026 US knowledge workers) classifies 73.5% of workers as “Experimenters” — people who use AI for basic, one-off tasks, with no repeatable workflow behind them.

Notice what that describes. Not refusal, not absence, not a population waiting to be persuaded. These are users. They would answer yes on any adoption survey ever fielded, and they would be answering honestly. But a one-off task performed with AI leaves nothing behind it: no changed sequence, no new standard for what a first draft is, no handoff that works differently tomorrow. The task got done. The work did not change.

Put the set together and it reads consistently. 76% use it. 73.5% use it ad hoc. Fewer than 60% of those with access use it regularly. 84% of organizations have not changed the work around it. 2% say all or most of their work is now done with it. Five figures, four publishers, 2025 and 2026.

A category error, not a reporting gap

Every one of those figures is a measurement of adoption. Every one of them hides an adaptation question underneath.

That distance is not a reporting gap. It is a category error. Adoption asks whether people use the technology. Adaptation asks what changed in the work. The first is cheap to count, near-universally reported, and thin on its own. The second is what leadership believes it is buying, and almost nobody can show it.

Deloitte’s talent practice drew the same line in July 2026: “Adoption asks: Did they use it? Adaptation asks: Did they use it effectively to drive impact?” The attribution deserves precision. That is one practice’s framing, published in a talent-insights piece — not a change to the firm’s flagship enterprise survey, which six months earlier measured and reported adoption throughout, and still does. The vocabulary has begun to separate. The measurement has not caught up with it.

So the field arrives at 2026 counting a proxy, increasingly aware the proxy is thin, and without an agreed standard for the thing it stands in for. That is the actual problem. It is not solved by a better survey, because surveys sit on the counted side of the line no matter how carefully they are worded.

What is missing is a hierarchy — a plain statement of which kinds of evidence show that work changed and which only show that someone showed up. Licenses issued, logins, seats filled, and stated confidence are all real measurements, honestly collected, and none of them is evidence of adaptation. Behavior observed against a named standard is. Behavior observed in real work, over time, is. The Evidence Ladder sets those out as six rungs, and locates almost all current AI reporting on the bottom four.

Until that line is drawn explicitly, 76% and 2% will keep being published side by side as though they were describing the same thing.

Sources

McKinsey & Company · How AI is—and isn't—changing the future of work · April 6, 2026 · n not stated · mckinsey.com
Pew Research Center · About 1 in 5 U.S. workers now use AI in their job, up since last year · October 6, 2025 · n=5,010 employed U.S. adults · pewresearch.org
Deloitte · State of AI in the Enterprise 2026: The Untapped Edge · January 21, 2026 · n=3,235 business and IT leaders, 24 countries · deloitte.com
Google Workspace / Hypothesis Group · Beyond AI Optimism · December 9, 2025 · n=2,643 · workspace.google.com
Section · The AI Proficiency Report, July 2026 edition · n=5,026 US knowledge workers · sectionai.com
Deloitte · AI adoption to adaptation: How a new change approach can build the human behaviors needed for AI · July 9, 2026 · deloitte.com

← All evidence notes