研究公司 Pangram 发布了一份基于其 Chrome 扩展程序收集数据的新报告，分析了主要社交媒体平台上人工智能（AI）生成内容的普及情况 [1]。该数据集涵盖了自 2026 年 4 月 24 日以来的超过 1,002,627 条帖子 [1]。
数据显示，在所有扫描平台的平均 AI 生成率为 13.8% [1]。其中，LinkedIn 平台上的长文（超过 250 字）AI 生成率最高，有超过 40% 的此类帖子被标记为完全由 AI 生成 [1][1]。相比之下，X/Twitter 上 23.9% 的文章被判定为完全由 AI 生成，另有 22.9% 的内容属于 AI 辅助或混合创作模式 [1]。
在 Reddit 平台上，回复内容中 98.1% 仍为人工撰写 [1]；不过其顶级帖子的 AI 生成率达到了 11.6% [1]。此外，研究还发现超过四分之一的长文（即字数超过 250 字的内容）被标记为完全由 AI 生成 [1]。
Research firm Pangram released a report analyzing the prevalence of artificial intelligence-generated content across major social media platforms based on data collected by its Chrome extension [1]. The dataset comprises over 1.02 million posts gathered since April 24, 2026 [1]. Across all scanned platforms, the average rate of AI-generated content was found to be 13.8% [1].
LinkedIn emerged as a significant hub for such material, with more than 40% of long-form posts exceeding 250 words marked as entirely generated by AI [1][1]. In contrast, X/Twitter presented a mixed landscape where 23.9% of articles were fully AI-generated and an additional 22.9% contained hybrid content combining human creation with AI assistance [1]. While Reddit replies remained predominantly human-authored at 98.1%, the top-tier posts on the platform showed an AI generation rate of 11.6% [1][1]. Additionally, Pangram's analysis indicated that roughly one-quarter (25.72%) of all long-form texts scanned were identified as completely generated by artificial intelligence [1].