You don't need software to recognise most AI-generated text. After reading enough of it, the patterns become unmistakable. Here are the seven most reliable tells.
First: signature vocabulary. Words like 'delve', 'tapestry', 'testament', 'pivotal', 'multifaceted', and 'ever-evolving' appear in AI text at many times their natural frequency. One of them means nothing; three in two paragraphs is a strong signal. Second: filler openers — 'It is important to note that', 'In today's fast-paced world' — which add words without adding meaning.
Third: uniform paragraph architecture. ChatGPT loves three-to-five sentence paragraphs of nearly identical length, each opening with a topic sentence and closing with a mini-summary. Human writers are messier. Fourth: the absence of contractions. Default AI output says 'it is' and 'do not' where nearly any human writer would say 'it's' and 'don't'.
Fifth: relentless balance. AI instinctively presents both sides of everything ('While X offers benefits, it also presents challenges'), rarely committing to a position. Sixth: list addiction — everything becomes 'several key factors', enumerated neatly. Seventh: the summary compulsion — paragraphs and essays that end by restating what was just said, usually beginning 'In conclusion' or 'Ultimately'.
None of these patterns individually proves AI authorship, and careful prompting can suppress them. But they cluster: text with five or more of these tells is overwhelmingly likely to be machine-generated. If you're editing AI output for legitimate use, an AI humanizer that strips these exact patterns — the fillers, the uniformity, the missing contractions — will get you most of the way to natural prose.
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