Anthropic Ties Its Petition Endorsement Back to Its Own Recursive Self-Improvement Data — 80% of Merged Code Now Written by Claude
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Anthropic's July 28 post endorsing the pacing petition explicitly grounds the ask in its own June research: 'Our own research on recursive self-improvement, published last month, points to the need for tools to deliberately pace the frontier.' That report found over 80% of code merged into Anthropic's codebase was written by Claude as of May 2026, with the typical engineer's daily merge count 8x higher in Q2 2026 than in 2024 after four flat years. The company is using its internal productivity metrics as the evidence base for asking government to build a brake — an unusually self-implicating argument.