Software development
Research-program update · not peer reviewed
24 February 2026
We are Changing our Developer Productivity Experiment Design
METR reports that selection effects and unreliable time measurement prevent its late-2025 experiment from producing a dependable estimate of AI-assisted developer productivity.
How it affects the work
We measure AI assistance on the work and team using it, including review and rework. Fixed AI productivity multipliers stay out of engagement plans.