Wikipedia editors launched an initiative called the "AI Cleanup Project"

In recent years, as large language models (LLMs) have advanced, an increasing volume of text has appeared online, making it difficult for the public to determine whether content was generated by AI. Wikipedia editors have launched an initiative called the "AI Cleanup Project," which includes a detailed guide outlining "signs of AI writing" .This guide serves as a practical reference for identifying AI-generated content.

According to the guide, AI-generated text often relies on phrases and expressions that are uncommon on Wikipedia but prevalent across the broader internet. First, AI-written content tends to emphasize the importance of a topic using stock phrases such as “pivotal moment” or “broader movement.” Second, when describing a subject’s uniqueness—particularly in biographical entries—it frequently cites trivial or minor media coverage rather than credible, independent, and objective sources.

Additionally, the guide notes that AI writing often features vague marketing-style language. For instance, descriptions of scenery commonly include clichéd expressions like “picturesque views” or “breathtaking vistas,” which sound more like lines from a television commercial than factual reporting. Such imprecise phrasing is widespread in online writing and can serve as a useful indicator of AI-generated text.

Although AI writing technology continues to improve, these stylistic traits remain distinctive markers of AI authorship. By recognizing these patterns, the public can better identify AI-generated content, fostering broader awareness, discussion, and critical engagement.