A team of 7 engineers developed the new version control system and a code review tool called Scion, which requires 200x less CPU and memory than the previous mirroring infrastructure. These changes also reduced CPU capacity use in continuous integration by 25%. Engineers who built the system now rate Claude as a more capable coder than themselves, noting that a preview of Claude Mythos once rewrote a pipeline to run 4x faster with 20x less memory without receiving further instructions.
Tuesday, October 20, 2026
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Anthropic Replaces Git With Custom System for 30,000 Daily Merges
AI7 days ago
The machine learning startup shifted its engineering workflow to a proprietary architecture to accommodate a volume of code revisions that had outgrown industry standards. Anthropic migrated its entire monorepo away from Git over a 5 month period after daily code merges rose from approximately 2,500 in May to more than 30,000 in September. The company stated that developer infrastructure designed for human programmers became a bottleneck as Claude AI agents began autonomously iterating on research loops and building new services.
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