A research study analyzing 65,000 web articles from CommonCrawl reveals that AI-generated content now exceeds human-written articles in quantity as of November 2024. The study found dramatic growth in AI content following ChatGPT's launch in November 2022, reaching 39% of all articles within 12 months, before plateauing around 50%. Using Surfer's AI detection algorithm with a 4.2% false positive rate and 0.6% false negative rate, researchers classified articles based on their AI-generated content percentage. The study notes that AI-assisted articles (human-edited AI drafts) were not evaluated and may be even more prevalent, while separate research indicates AI-generated articles perform poorly in search results.

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