At a glance
- Company
- Procter & GambleConsumer goods manufacturer
- Industry
- Manufacturing The work studied was product development, not production on the factory floor.
- Where and when
- Europe and the Americas. May–July 2024.
- Who produced the figures
- Measured by researchersThe figures come from a working paper by researchers at Harvard, Wharton and other business schools. Four of the eleven authors work at Procter & Gamble. The paper has not been peer-reviewed.
What they did
Procter & Gamble ran one-day online workshops for 776 of its staff. Each person worked on a real product problem from their own business unit: baby care, feminine care, grooming or oral care. Participants came from two groups: research and development, and commercial roles.
People were assigned by chance to one of four set-ups: alone, alone with AI, in a pair, or in a pair with AI. A pair had one person from each group. The AI was a GPT-4 tool. Those who used it had one hour of training first. Expert judges then scored the quality of each proposal. They did not know which set-up had produced it.
The numbers
Quality is measured against people working alone without AI. The unit is the standard deviation, a common measure of how far a result sits from the average.
| Set-up | Quality compared with one person, no AI | Time spent |
|---|---|---|
| Pair, no AI | 0.24 higher | About the same |
| One person with AI | 0.37 higher | 16.4% less |
| Pair with AI | 0.39 higher | 12.7% less |
- Best ideas. Pairs with AI were 9.2 percentage points more likely to produce a proposal rated in the top 10%. Among people working alone without AI, 5.8% reached that level.
- Less divided by department. Without AI, research staff proposed technical ideas and commercial staff proposed commercial ones. With AI, both produced balanced proposals.
- Mood. People who used AI reported more positive feelings about the work.
What the case shows
- AI helped on idea-stage product work. The gain was measured in an experiment with a comparison group, inside a working manufacturer. Judges rated proposals. No product was launched and sold as part of the study.
- One person with AI did about as well as a pair without it. The paper describes the two sets of scores as very similar.
- Little training was needed. One hour, for staff the authors describe as fairly new to prompting.
Other experiments show that AI helps on some tasks and harms on others. See the study of 758 consultants.
What this says about the practices
Practices the company applied
Sources
- Dell’Acqua, Ayoubi, Lifshitz, Sadun, Mollick, Mollick, Han, Goldman, Nair, Taub and Lakhani (2025). The Cybernetic Teammate: A Field Experiment on Generative AI Reshaping Teamwork and Expertise. NBER Working Paper 33641. nber.org
- Dell’Acqua, McFowland, Mollick, Lifshitz-Assaf, Kellogg, Rajendran, Krayer, Candelon and Lakhani (2026). Navigating the Jagged Technological Frontier: Field Experimental Evidence of the Effects of Artificial Intelligence on Knowledge Worker Productivity and Quality. Organization Science, 37(2), 403–423. What this study did and found
- Vaccaro, Almaatouq and Malone (2024). When combinations of humans and AI are useful: A systematic review and meta-analysis. Nature Human Behaviour, 8(12), 2293–2303. What this study did and found