Anthropic's Own Numbers: Code Output Per Engineer Up 200%, Substantive PR Reviews Up From 16% to 54%
The Pragmatic Engineer·high signal
A July 29 Pragmatic Engineer deep dive inside Anthropic (now 3,500+ employees) reports code output per engineer rose 200% over the past year, which turned review into the bottleneck — before AI-assisted Code Review only 16% of pull requests got substantive review comments, now 54% do. The piece also reports verification now consumes more engineer time than implementation, and that two-pizza teams survived the shift. This is the cleanest first-party dataset yet on what happens to an engineering org after AI absorbs the writing half of the job: the work moves to review, and it grows.