What the DORA 2026 J-Curve Actually Says About Reliability and Vibe Coding

Mon, 04 May 2026 08:00:00 -0700

DORA shipped The ROI of AI-Assisted Software Development recently. There’s an interesting number from that report that ties back to a Google Cloud 2025 report on the ROI of AI; 78% of executives from organizations with C-level AI sponsorship report seeing ROI now on at least one generative AI use case. The new report shares a number I have not seen quoted before, a 15% productivity drop used as the default in its sample ROI calculator. The report is explicit that the actual depth and duration of the dip are unpredictable; 15% is a placeholder input, not a measurement. On a 500-engineer organization at $176,000 fully loaded salary, that is $3.3 million in lost capacity over three months. The report calls this the “tuition cost” of AI adoption. It includes the line item in its example budget. Then it moves on.

DORA on Revelara

What the DORA 2026 J-Curve Actually Says About Reliability and Vibe Coding