METR AI Coding Research Inconclusive Because Dev Participants Refused to Complete Tasks Without AI
METR AI Coding Research Inconclusive Because Dev Participants Refused to Complete Tasks Without AI
We are Changing our Developer Productivity Experiment Design

Selected developer quotes:
“I’m torn. I’d like to help provide updated data on this question but also I really like using AI!” — a developer from the original study early-2025 when asked to participate in the late-2025 study.
“I found I am actually heavily biased sampling the issues … I avoid issues like AI can finish things in just 2 hours, but I have to spend 20 hours. I will feel so painful if the task is decided as AI-disallowed.” — a developer from the new study noting selection effects when choosing what tasks to include in the study.
“my head’s going to explode if I try to do too much the old fashioned way because it’s like trying to get across the city walking when all of a sudden I was more used to taking an Uber.” — a developer from the new study noting selection effects when choosing what tasks to include in the study.