Anthropic says over 90% of its September codebase commits were written by Claude
vivekhaldar · x · 2026-10-27
Citing Anthropic's S1 disclosures, pauldix notes over 90% of September 2026 codebase contributions were written by Claude, and per-engineer daily code volume in the quarter ending Sept 30, 2026 was 45x the 2024 average.
vivekhaldar adds that even engineers directing these AIs no longer read every line — reading code may soon feel as quaint as reading compiler-generated assembly.
Related event: Anthropic Says Over 90% of Its Code Is Written by Claude(2 posts)→
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