# AI Dev Productivity Studies: The -19% to +56% Gap Explained > Source: > Published: 2026-10-24 21:15:05+00:00 AI coding tools show +56% to -19% productivity in studies. METR's RCT reveals a 39-point perception gap. Here's what the data actually shows. The post AI Dev Productivity Studies: The -19% to +56% Gap Explained appeared first on byteiota .