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metr_blog.rct_2025.dev_speed_change.pt

Source: METR research posts (METR) · METR · CSV

METR, Time Horizon 1.1 (29 Jan 2026)

idvaluegradeas of datepublished datetieraudited vs reportedextraction methodreview statusretrieved athttp statuscontent hashsupersedes idurlflags
3b8cf0acd1ec2093-19.0%grade A, evidence tier 12025-06-302025-07-101reportedmanualapproved2026-09-10T01:28:39.638801Z2009fb07c2db32esource page
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  • 3b8cf0acd1ec2093 when developers use AI tools, they take 19% longer than without—AI makes them slower.