AI coding is now everywhere. But not everyone is convinced.
a July study by the nonprofit research organization Model Evaluation & Threat Research (METR) (
) showed that while experienced developers believed AI made them 20% faster, objective tests showed they were actually 19% slower.
For Mike Judge, principal developer at the software consultancy Substantial, the METR study struck a nerve.

MIT Technology Review
AI coding is now everywhere. But not everyone is convinced.
Developers are navigating confusing gaps between expectation and reality. So are the rest of us.

Measuring the Impact of Early-2025 AI on Experienced Open-Source Developer Productivity
