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    Claude reportedly writes 80% of Anthropic's code

    A post linking to Anthropic's blog says engineers ship 8x more code per quarter, tests grew 10x and continuous integration jobs rose 25x in six months.

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    TLDR

    A September 14, 2026 post sharing an Anthropic blog article says Claude writes 80% of the company's code and engineers ship 8x more code per quarter. It describes a side effect of that output: tests grew 10x, while continuous integration (CI) jobs rose 25x in six months.

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    2 Sources, first seen 16d ago

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    Combined views

    711.5K

    2 Sources, first seen 16d ago

    4.7K likes
    16d ago
    first seen 16d ago
    4.7K
    287 comments
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    345 reposts

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    287 comments
    4.5K saves
    345 reposts

    Sentiment

    Positive——Negative

    Summary

    Not enough discussion yet.

    No sentiment analysis available yet.

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    2 Sources

    @addyosmaniAt Anthropic, Claude now writes 80% of our code. Engineers ship 8x more code per quarter. Side effect: Tests grew 10x. CI jobs up 25x in 6 months. Here's what helped us scale: https://claude.com/blog/agentic-coding-is-straining-ci-heres-how-we-scaled-test-impact-analysis-at-anthropic
    @charles_irlthis is why Claude Code is such an excellent software product that has never made my terminal summon Zalgo

    2 Sources

    @addyosmaniAt Anthropic, Claude now writes 80% of our code. Engineers ship 8x more code per quarter. Side effect: Tests grew 10x. CI jobs up 25x in 6 months. Here's what helped us scale: https://claude.com/blog/agentic-coding-is-straining-ci-heres-how-we-scaled-test-impact-analysis-at-anthropic
    @charles_irlthis is why Claude Code is such an excellent software product that has never made my terminal summon Zalgo