1. Overview

With AI tools like ChatGPT, it’s natural to wonder: Was this text written by a human or by AI? There’s no perfect method, but some clues can help.

2. Common Features of AI Text

Smooth but repetitive sentences

AI writes grammatically correct sentences, but they may feel overly polished or repetitive.

Lack of personal examples

AI tends to stay general, while humans often include personal stories, emotions, or concrete details.

Vague expressions

Phrases like “generally known” or “it is often said” without clear sources are common in AI texts.

Consistent style

AI maintains a uniform rhythm, while human writing usually has variations in tone, length, and style.

3. Methods to Check

1. Human judgment – Look for creativity, humor, or personality.

2. AI detection tools – Use GPTZero, Copyleaks, etc., but accuracy isn’t guaranteed.

3. Fact-checking – AI often makes up data or references, so verifying details helps.

4. Fun Fact

AI detection tools are in a “cat-and-mouse game” with AI developers.
As AI improves, it becomes harder to detect. In some studies, humans outperformed AI detectors in spotting AI-written text.

5. Global Examples

• US universities use AI detectors but face controversy due to false positives.

• European news outlets sometimes disclose when an article was AI-assisted to maintain trust.

6. Conclusion

It’s never 100% certain, but by checking style, specificity, and facts, plus using detection tools, you can make a good guess.