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METR announces a redesign of its developer productivity study

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Announced a change to the design of its developer productivity experiment

Why it matters

Redesigned the experiment because of selection bias (a growing number of participants refusing to work without AI). It did not retract its 2025 result of 19%, but said developers in early 2026 were likely faster, explicitly labeling this very weak evidence

Source — Primary sources first; secondary reports are labelled “Press”

Officialmetr.orghttps://metr.org/blog/2026-02-24-uplift-update/

Added in Week 35, 2026 · See that week

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