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Applied AI·June 4, 2026·1 min read

Anthropic details its progress toward recursive self-improvement, and its implications, and says 80%+ of the code merged into its codebase is authored by Claude (Anthropic)

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When 80% of merged code is authored by Claude, the constraint in AI companies shifts from engineering capacity to oversight and product judgment. If recursive self-improvement is on the table, your real moat becomes evals, guardrails, and who controls the spec for what the system is allowed to optimize for.