# OpenAI Built a Million Lines of Code. Nobody Reviewed It. - slug: openai-built-a-million-lines-of-code-nobody-reviewed-it - date: 2026-04-07 - category: Artificial Intelligence OpenAI merged 1,500 PRs in five months using three engineers on a system that wrote and reviewed its own code. The numbers are real. The question is what they actually tell us about the future of software engineering. ---