A program of EffectiveSC

How We Use AI

Sources checked October 24 to 29, 2026

AnalysisHow much will companies spend checking AI agents' work? →

Where things stand / What people use AI for

What people use AI for

What people actually use AI for at work and at home, how heavy and light users differ and how far each gets, and which uses pay off.

At work, writing and finding information come first

In surveys of workers and in the logs of the biggest chat products, writing and finding information come first. Most of the time people use AI to help with part of a task, not to hand over the whole of it.

51%

In May 2026, among US employees who use AI at work, the most common uses were writing and editing (51%), search or research (49%) and general assistance or problem-solving (39%).

Who was asked: employees who use AI at work

People could name more than one use.

Gallup, Organizational AI Adoption Jumps Six Points · May 6-20, 2026 · Grade A

about 40%

Writing is about 40% of work-related messages on consumer ChatGPT, and about two thirds of all writing requests ask it to rework text the user supplied (edit, critique, translate or summarize).

Chatterji et al., How People Use ChatGPT, NBER w34255 · Data to June 2025; NBER w34255, September 2025 · Grade B

31%

In March 2026, 31% of US workers said they had used AI at work to interpret, translate or summarize information and 27% for administrative tasks, the next most common uses after searching, writing and generating ideas; fewer had used it for coding or modeling, customer support or managing logistics or supply chains.

Who was asked: US workers

The question counts AI broadly and names no time period.

US Census Bureau, About a Third of Workers Who Used AI in the Last Week Said They Completed Tasks One to Two Hours Faster · March 2026 · Grade A

under 10%

In April 2026 logs of Google's Gemini products, attempts to automate a task end to end were under 10% of conversations about non-routine cognitive work, such as hypothesis testing or creative design; most of that use was partial drafting, review, ideation and finding information.

Who was asked: interactions across the Gemini App, Google AI Mode and the Gemini API

Google's own classification, which it calls an initial attempt.

Disclosure: Google makes Gemini.

Google and Google DeepMind (Iscenko, Strand et al.), Google's AI & Economy ATLAS v1.0: Mapping Gemini Usage in the Economy · April 6 to 19, 2026 · Grade B

See also: How many people use AI at work

Outside work, where most use happens

Most use of consumer chatbots has nothing to do with work. People look things up, ask about health and have fun, and few turn to AI for companionship.

25.1%

In 2025, 25.1% of people aged 16 to 74 in the EU used generative AI tools for private purposes in the previous three months, against 15.1% for work and 9.4% for formal education.

Who was asked: People aged 16 to 74 in the EU

Eurostat, 64% of 16-24-year-olds used AI in 2025 · 2025 · Grade A

What the logs show, and what people say

A usage log counts what one product's users typed, and a survey counts what people say they did. The share of use that is work depends on the product measured, and the two methods disagree about which tasks AI does.

82% to 89%

In a May 2026 paper, Microsoft estimated that 82% to 89% of Microsoft 365 Copilot Chat use in enterprises is for work and about 10% personal, against 27% work use on consumer ChatGPT in OpenAI's study, so the share of use that is work depends on the product.

Who was asked: Microsoft 365 Copilot Chat usage in enterprise tenants

Each company classified its own product's logs, in its own way.

Disclosure: Microsoft makes Copilot and studied its own product.

Microsoft (Counts, Chen, Dong, Sharma, Zaikin et al.), AI in the Enterprise: How People Use M365 Copilot Chat (arXiv 2605.23958v1) · 2026-05-11 · Grade B

74%

In November 2025, 74% of sampled requests to Anthropic's API, mostly from businesses, were work-related, against 46% of conversations on its Claude.ai chat app.

Claude itself classified the transcripts.

Disclosure: Anthropic makes Claude; this site is compiled with Claude.

Anthropic, Anthropic Economic Index report: Economic primitives · November 2025 · Grade B

46%–61%

Chat logs from OpenAI, Anthropic and Microsoft put 46%–61% of generative AI use in the top ten tasks, against 22% in a survey of US adults run from August 2025 to May 2026. The authors say chat classifiers, which can't see a user's job, pile chats into a few generic tasks.

Who was asked: Real-Time Population Survey: US adults aged 18-64

The survey asks each worker only about the main tasks of their own job.

NBER (Bick, Blandin, Deming and Schumacher; St. Louis Fed, Vanderbilt, Harvard), What Work Does Generative AI Do? (NBER Working Paper 35677) · 2026-08 · Grade B

Heavy and light users do different things

People who use AI often do more with it: more coding and automation at work, and more personal uses outside it. Light users stick to a few. Age changes the mix too.

22% vs. 8%

In May 2026, US employees who use AI at work a few times a week or more were nearly three times as likely as less frequent users to use it for coding assistance (22% vs. 8%) and automation (21% vs. 8%), and more than twice as likely to use it for task, scheduling or project management (21% vs. 9%).

Who was asked: employees who use AI at work

Gallup, Organizational AI Adoption Jumps Six Points · May 6-20, 2026 · Grade A

19%

In 2025, 19% of all monthly active ChatGPT Enterprise users had never used its data analysis tool, 14% had never used reasoning and 12% had never used search; among daily active users, the shares were 3%, 1% and 1%.

Who was asked: De-identified, aggregated ChatGPT Enterprise usage

Monthly users include the daily users.

Disclosure: OpenAI's own usage data about its own product.

OpenAI, The state of enterprise AI: 2025 report · 2025 · Grade B

66%

In May 2026, 66% of internet-using US adults who use AI chatbots daily had used AI in the past six months for at least one social, emotional or personal purpose, from entertainment and personal advice to companionship or romantic chat, against 49% of those using chatbots a few times a week and 35% of those using them a few times a month.

Who was asked: 4,268 US internet-using adults interviewed online by YouGov

Any one of several personal uses counts, entertainment included.

Elon University, Imagining the Digital Future Center and Elon University Poll, The Rise of AI Companions · May 18-22, 2026 · Grade B

39.3%

In 2025, 63.8% of people aged 16 to 24 in the EU had used generative AI tools in the previous three months, nearly twice the 32.7% of all 16 to 74 year olds. A far larger share of the young used them for formal education (39.3% against 9.4%) and private purposes (44.2% against 25.1%), but about the same share for work (15.8% against 15.1%).

Who was asked: People aged 16 to 24 in the EU

Shares of each age group, not of AI users.

Eurostat, 64% of 16-24-year-olds used AI in 2025 · 2025 · Grade A

See also: Who is more likely to use it

How far each group gets

Few people hand most of their work to AI, and the typical job uses it for a small share of its tasks. People who use it in more ways report bigger gains, and beginners fall short most often.

21%

In September 2025, 21% of US workers said at least some of their work was done with AI (all, most or some of it), including 2% who said all or most; 19% said some, 65% not much or none, and 12% hadn't heard of AI use in the workplace. In October 2024, 16% said at least some.

Pew Research Center, “About 1 in 5 U.S. workers now use AI in their job, up since last year” (short read by Luona Lin, October 6, 2025), with its topline, questionnaire and methodology · September 2 to 8, 2025 (American Trends Panel Wave 178; published October 6, 2025); trend wave October 7 to 13, 2024 (published February 25, 2025) · Grade A

21%

In April 2026 logs of Google's Gemini products, AI was used for only 21% of the tasks in the median occupation with any AI use, and only 3% of occupations showed AI use for over 75% of their tasks.

Who was asked: interactions across the Gemini App, Google AI Mode and the Gemini API

Enterprise and Workspace use are left out, so work use may be understated.

Disclosure: Google makes Gemini.

Google and Google DeepMind (Iscenko, Strand et al.), Google's AI & Economy ATLAS v1.0: Mapping Gemini Usage in the Economy · April 6 to 19, 2026 · Grade B

90%

In May 2026, the more kinds of tasks US employees used AI for at work, the more often they said it had a positive effect on their productivity: 45% of those using it for one or two purposes, rising to 66% for three or four, 78% for five or six and 90% for seven or more.

Who was asked: employees who use AI at work

Self-reported; Gallup says the link doesn't show that more uses cause bigger gains.

Gallup, Organizational AI Adoption Jumps Six Points · May 6-20, 2026 · Grade A

15%

From October 2025 to April 2026, Claude Code sessions in which Anthropic's classifier rated the person a novice reached verified success, such as passing tests, 15% of the time and at least partial success 77%, against 28-33% and 91-92% for sessions rated intermediate or above.

Who was asked: About 400,000 interactive Claude Code sessions from about 235,000 people

Expertise and success are judged by Anthropic's classifiers from transcripts.

Disclosure: Anthropic makes Claude; this site is compiled with Claude.

Anthropic, How Claude Code is used in practice · October 2025 to April 2026 · Grade B

3.8%

Only 3.8% of Section's June 2026 respondents wrote workable instructions for a custom AI assistant (scored 3 of 5 or higher in a hands-on test).

Section, The AI Proficiency Report, June 2026 · June 2026 edition · Grade C

See also: The heaviest users

What pays off, and what gets dropped

Controlled trials find large gains on well-defined tasks such as writing, and none on others, such as medical advice. Across whole jobs the measured effect is small, and many companies abandon most of their AI projects.

37%

In a preregistered online experiment in early 2023 with 444 college-educated professionals, those randomly given ChatGPT finished an occupation-specific writing task 10 minutes (37%) faster than the control group, and evaluators graded their work 0.45 standard deviations higher.

Who was asked: 444 college-educated professionals recruited online

Short online writing tasks with an early version of ChatGPT.

Shakked Noy and Whitney Zhang (MIT), Experimental Evidence on the Productivity Effects of Generative Artificial Intelligence (working paper) · early 2023 · Grade A

0.37 standard deviation

In a randomized field experiment with 776 Procter & Gamble professionals in 2024, individuals working with AI showed a 0.37 standard deviation gain in the rated quality of their solutions to real product-innovation challenges over individuals working without it, and two-person teams with AI a 0.39 standard deviation gain; the authors say individuals with AI performed at a level comparable to teams without AI.

Who was asked: 776 Procter & Gamble professionals (R&D and commercial)

A one-day virtual workshop at one company.

Disclosure: P&G gave gifts to a Harvard Business School institute, and one author was a paid consultant to P&G.

NBER (Dell'Acqua, Ayoubi, Lifshitz, Sadun, Mollick and others), The Cybernetic Teammate: A Field Experiment on Generative AI Reshaping Teamwork and Expertise (NBER Working Paper 33641) · 2025-04 · Grade A

24.3%

In a 2025 study of 48 freelance workers, those who chose to use AI for single steps finished tasks 24.3% faster than workers without AI, while the few who handed AI whole tasks were 17.7% slower, partly from checking and fixing its work and partly because less expert workers chose to hand tasks over.

Who was asked: 48 human workers

Not randomized: workers chose how to use AI, and only a handful handed it whole tasks.

Carnegie Mellon University and Stanford University (Wang, Shao, Fried, Neubig, Shaikh and Yang), arXiv, How Do AI Agents Do Human Work? Comparing AI and Human Workflows Across Diverse Occupations (arXiv 2510.22780v2) · 2025-11-06 · Grade C

34.5%

In a randomized study in 2024 with 1,298 UK adults working through doctor-written medical scenarios, those given GPT-4o, Llama 3 or Command R+ identified the relevant conditions in fewer than 34.5% of cases and the right course of action in fewer than 44.2%, no better than a control group free to use any source; tested alone, the same models identified the conditions in 94.9% of cases.

Who was asked: 1,298 UK adults recruited on Prolific (stratified to UK demographics)

Written medical scenarios, not real illness.

Nature Medicine (Bean et al., University of Oxford), Reliability of LLMs as medical assistants for the general public: a randomized preregistered study · August 21 to October 14, 2024 · Grade A

1%

Linking two surveys of Danish workers in 11 AI-exposed occupations to payroll records through June 2024, economists found AI chatbots had no significant effect on earnings or recorded hours in any occupation; confidence intervals rule out average effects larger than 1%.

Who was asked: About 25,000 workers per survey round

Not randomized; covers the first year and a half after ChatGPT's launch.

Becker Friedman Institute, University of Chicago (Humlum and Vestergaard), Large Language Models, Small Labor Market Effects (BFI Working Paper 2025-56) · late 2023 and 2024 · Grade B

42%

In S&P Global Market Intelligence's 2025 survey of more than 1,000 respondents in North America and Europe, as CIO Dive reports it, 42% of companies were abandoning most of their AI initiatives, up from 17% a year earlier, and the average organization scrapped 46% of its AI proofs of concept before production.

Who was asked: More than 1,000 respondents in North America and Europe

As a trade outlet reported it; S&P's own wording isn't quoted.

Cited secondary · S&P Global Market Intelligence (via CIO Dive), AI project failure rates are on the rise: report · 2025 survey · Grade C

RAND's 2024 report on why AI projects fail repeats an outside estimate that more than 80 percent of AI projects fail, twice the rate for IT projects that don't involve AI; RAND cites a Fortune article for it and did not measure it.

Widely quoted as RAND's finding, but RAND took it from other sources and measured none of it.

Caution · RAND Corporation (Ryseff, De Bruhl and Newberry), The Root Causes of Failure for Artificial Intelligence Projects and How They Can Succeed (RR-A2680-1) · 2024 · Grade C

See also: What experiments measure, Are companies getting a return on AI?

Before the estimate

The estimate that follows is this site's arithmetic from published surveys of which tools people use. It is not a count of people who have built an agent. Robb Wilson, who leads this research, works at OneReach.ai, which sells software for orchestrating agents. EffectiveSC, which publishes How We Use AI, plans to offer AI services of its own. Claude, Anthropic's AI, helped compile this research, and the card that names Claude Code says so.

Estimate: Who uses the tools that building takes

No survey counts people who build an agent, an automation or a custom assistant that someone else uses. For all employees, the closest published uses are coding assistance and automation. This site multiplies each use by the share of employees in that frequency group. The two uses overlap, so they do not add, and using the tool is a ceiling, not a headcount of builders. Among professional developers the same tools are ordinary: most use a coding agent in a typical week, and most say they build scripts or internal tools. The tighter bound, a hands-on test of writing a workable custom assistant, is in How far each group gets.

about 8%

Project estimate: about 8% of US employees used AI for coding assistance in May 2026, and about 8% used it for automation. Among the 30% of employees who use AI a few times a week or more, 22% used it for coding assistance and 21% for automation; among the 22% who use it less often, 8% did each. Less often is use at least a few times a year but not a few times a week, 52% minus 30%. Coding assistance is 22% times 30% plus 8% times 22%, which is 8.36%; automation is 21% times 30% plus 8% times 22%, which is 8.06%. Each rounds to about 8%. The two groups overlap, so they are not a combined 16%. Using either tool is not the same as building an agent that someone else uses.

Who was asked: US employees aged 18 and older working full or part time

This site's arithmetic from Gallup's published shares. The two uses overlap, and using a tool is not building an agent someone else uses.

Estimate · Gallup, Organizational AI Adoption Jumps Six Points, and the AI at Work indicator; computed by the project · May 6-20, 2026 · Grade C

90%

In JetBrains' weighted developer surveys, Claude Code use at work rose from about 3% (April to June 2025) to 18% (January 2026) and about 39% (May to July 2026), while GitHub Copilot fell from 29% to 21% and Cursor from 18% (January 2026) to 12%. In May to July 2026, 90% of professional developers used AI coding agents at work at least weekly, and 68% daily.

Who was asked: Professional developers worldwide

Weighted surveys of professional developers by JetBrains. Each share is of developers using the tool at work. Using a coding agent is not building an agent for someone else.

Disclosure: JetBrains sells developer tools and AI agents, and Claude Code is Anthropic's product; Claude, Anthropic's AI, helped compile this research.

JetBrains Research blog, "Which AI Coding Tools Do Developers Actually Use at Work?" (April 2, 2026) and "AI Coding Agents: Adoption Trends" (August 19, 2026) · May to July 2026 · Grade C

77.3%

18.6% of respondents build in-house software to replace paid vendors, against 77.3% who build small scripts and automations and 63.0% team-level internal tools; among those replacing paid vendors, 54.4% build with AI. Stack Overflow calls predictions of an AI-driven "SaaSpocalypse" "greatly exaggerated".

Who was asked: Respondents to the build question

An opt-in survey of developers. Most say they build small scripts and automations or team tools. Replacing a paid product is a much smaller share, and the share who build that with AI is of that smaller group only.

Stack Overflow, 2026 Developer Survey: technology section overview · Fielded June 23 to August 5, 2026 · Grade C

See also: How far each group gets, What AI agents are used for

The AI at Work Benchmark

Measure how your people actually use AI

Score your organization's practices, measure your people with an anonymous pulse, and see both against the published evidence.