Why did developer PR throughput increase by only 7.76% despite a 65% increase in AI tool usage?
A benchmark by DX across more than 400 companies found that while AI tool usage surged by 65%, median pull request throughput rose by just 7.76%. The bottleneck shifted from keystrokes to code review, debugging, and resolving security vulnerabilities.
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The 7.7% Mirage: Why AI Code Generation Is Multiplying Maintenance, Not VelocityAI writes code many times faster, yet median PR throughput rose just 7.76% while code churn doubled. The bottleneck moved downstream.
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