Fact · Typing and writing speed
37percent
In the Noy and Zhang working paper, time taken on the second writing task fell by 10 minutes, or 37 percent, for the group with ChatGPT.
Checked against its source on October 16, 2026
In the source's own words
“Time taken on the post-treatment task drops by 10 minutes (37%) relative to the control group”
Experimental Evidence on the Productivity Effects of Generative Artificial Intelligence (working paper), Shakked Noy and Whitney Zhang, MIT Economics working paper, 2023, Results.
Open the original- What it measures
- College-educated professionals wrote short workplace texts for a task with a time limit.
- What it does not show
- Working paper, not the final Science version, which may report different figures.