AI Generated Text Examples — Real Samples

Annotated examples of AI-generated text across three categories: academic AI, narrative AI, and humanized AI. Each pattern is labeled so you can see exactly what to look for.

5 min read

Example 1: Academic AI (ChatGPT, unedited)

Prompt given: "Write a paragraph about the benefits of exercise for mental health."

"Regular exercise offers a multifaceted array of mental health benefits that extend far beyond the physical. It is worth noting that physical activity stimulates the release of endorphins, serotonin, and dopamine — neurotransmitters that play a pivotal role in mood regulation. Furthermore, robust research underscores the effectiveness of exercise in alleviating symptoms of anxiety and depression. In conclusion, incorporating regular physical activity into one's routine represents a comprehensive approach to mental wellbeing."

Signals fired: Vocab ×5 (multifaceted, pivotal, robust, underscores, comprehensive) · Significance marker · Transition · Closing ritual · Score: ~87%

Example 2: Narrative AI (ChatGPT, creative fiction)

Prompt: "Write the opening of a short story about a detective."

"Detective Sarah Chen walked through the rain-slicked streets of the city, her mind sharp despite the late hour. She felt the familiar weight of a new case pressing down upon her shoulders. She noticed the flickering neon sign of the diner where her informant was waiting. Something about this case felt different — different in a way she couldn't quite name, though she knew it was significant. She pushed open the door and stepped inside."

Signals fired: Subject monotony (She×4) · Semantic circularity · Score: ~68%

Example 3: Humanized AI (run through paraphrase tool)

Same academic paragraph after QuillBot paraphrasing pass.

"Working out regularly gives you mental health perks that go beyond just the physical side. Physical activity gets your body pumping endorphins, serotonin, and dopamine — brain chemicals that are key to keeping your mood stable. On top of that, plenty of studies show exercise works well for reducing anxiety and depression. To wrap up, making exercise part of your life is a solid way to take care of your mental health."

Signals fired: Transition survived · Closing ritual survived · Structure monotony · Score: ~51% — vocabulary humanized, but structure patterns persist

Key Takeaway

Humanizers can swap vocabulary — that removes the strongest individual signal. But they can't easily fix structural patterns: the three-paragraph format, the closing summary, the transition placement. That's why our detector looks beyond vocabulary alone.

For a full side-by-side comparison page, see: AI vs Human Writing Examples.

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