Anthropic Says 80% of Its Code Is Now Written by Claude AI

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Anthropic has published an essay revealing that over 80% of its production code is now generated by its own AI model, Claude, with engineers shipping roughly eight times more code than in 2024. The essay draws a clear distinction between execution — the act of writing code — and judgment, which involves deciding what to build and whether outcomes make sense. Anthropic argues that as AI automates execution at speed, human judgment becomes more critical, not less. The company describes its internal engineering culture as already operating on an AI-first model, where AI writes code by default and humans review it. The broader implication is that the role of software engineers is fundamentally shifting, with value increasingly tied to problem definition and critical thinking rather than code output.

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