Our position
Measure what lands, not what is typed.
Under abundant generation, volume metrics (lines of code, "percent faster") are misleading. The signals that matter are acceptance rate, rework and stability.
Everyone says
AI productivity means more code, faster.
We think
Measure the scarce step — acceptance, rework and stability — not output or perceived speed.
What we’ve observed
- A randomised trial found experienced developers ~19% slower with AI while feeling faster.
Confidence: Established
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