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Rohan Paul· @rohanpaul_ai · X· · Original publication time SelectedAI score60

UC Berkeley and University of Washington study finds AI-generated or edited text on about 24% of crawlable webpages by August 2026Machine translation

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The study sampled 5.1 million pages from Common Crawl snapshots spanning 2019 to 2026 and used a statistical model to correct for detector false positives and misses. It found that the share containing AI-generated or AI-edited text rose from almost none before 2022 to about 24% by August 2026. Small, little-linked sites accounted for 78.8% of the rise, while the most central sites were least likely to contain AI text.

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– https://t.co/594X2J13G2

标题:“人工智能生成的网络内容增长不均衡”

ReplyRohan Paul@rohanpaul_ai
Translation
加州大学伯克利分校和华盛顿大学的一项新研究发现,截至 2026 年 8 月,约 24% 的可抓取网页含有由人工智能生成或编辑的文本,而在 2022 年之前,这一比例几乎为零。 他们从涵盖 2019 年至 2026 年、涉及所有语言的 Common Crawl 快照中抽样了 510 万个网页。统计模型以 2022 年以前的网页作为几乎不含人工智能内容的基线,校正了各检测工具的误报和漏报。 年增长幅度从 2023 年初至 2025 年初的 4.6 个百分点,增至此后每年的 8.1 个百分点,几乎翻倍。规模小、外部链接较少的网站贡献了增长的 78.8%,而处于网络核心位置的网站最不可能含有人工智能生成的文本。
Original

New study from UC Berkeley and Univ of Washington found that about 24% of crawlable webpages held AI-generated or AI-edited text by August 2026, up from almost none before 2022. They sampled 5.1M pages from Common Crawl snapshots spanning 2019 to 2026, in every language. A statistical model corrected for each detector's false alarms and misses, using pre-2022 pages as a near-AI-free baseline. Yearly growth nearly doubled, from 4.6 points between early 2023 and early 2025 to 8.1 points after that. Small, little-linked sites drove 78.8% of the rise, while the most central sites were least likely to have AI text.

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