AI Content Detector

As AI writing tools spread, editors, teachers, and clients increasingly want to know whether a piece of text was written by a person or generated by a model. The AI Content Detector analyzes the text you paste and returns a likelihood score showing how AI-generated versus human-written it appears, based on patterns like sentence uniformity, predictability, and phrasing. It's useful for educators screening submissions, editors vetting freelance work, and writers who want to gauge how 'machine-like' their own draft reads.

How to use it

1. Paste the passage into Text to analyze. Longer samples give a more reliable read — a few full paragraphs work far better than a single sentence.
2. Run the check and look at the likelihood score, not just a yes/no verdict. A score is a signal, not proof.
3. If a section scores high, reread it for the tells the detector picks up on: repetitive structure, generic transitions, and an even, hedged tone.
4. Re-test after edits to see whether your changes moved the needle.

When to use it

Reach for it when you're reviewing content from an unknown source, screening guest posts before publishing, or doing a sanity check on outsourced articles. Writers also use it in reverse — to find the parts of their own AI-assisted draft that still sound robotic so they can rewrite them in their own voice. Teachers use it as an early flag on submissions, and content managers run it on bulk freelance deliverables before paying out. It's a screening step, not a verdict, but it tells you where to look closer.

Tips for better results

• Test at least 150–300 words; short snippets are easy to misjudge in either direction.
• Analyze sections separately if a document mixes human and AI writing — an overall score can hide a heavily AI passage buried in human text.
• Treat scores near the middle as inconclusive rather than forcing a conclusion.
• Pair detection with judgment: read the text yourself and consider the source, deadline, and the writer's usual style.
• Re-run after editing the most predictable, hedged sentences to confirm your changes actually shifted the score.

Common mistakes to avoid

Don't treat any detector as infallible — false positives happen, especially with formal, formulaic, or non-native human writing that naturally looks 'clean.' Never use a single score to accuse someone or fail an assignment without further review. And don't assume a low score means quality; human-written text can still be weak, and lightly edited AI text can slip through.

If your goal is to make AI text read more naturally rather than just detect it, try the AI Humanizer, and the Paraphrasing Tool to rework stiff passages. To go deeper on how detection works, read How to Humanize AI Text So It Passes AI Detectors.