AI Content Detector
Detect whether text was written by AI or a human with confidence scoring.
Paste any text and get a signal on whether it reads more like human writing or AI output. This detector checks for patterns that AI models often produce, including predictable word choices, uniform sentence structures and that "too neat" feel. You'll get a confidence score plus a breakdown of what triggered the flags.
How the Detection Actually Works
AI detectors look at several writing signals at once:
- Perplexity - This measures how predictable the next word is. AI text often picks the expected word more often than people do.
- Burstiness - Human writing usually mixes short sentences with longer ones. AI text often keeps a steadier rhythm.
- Vocabulary patterns - Some words show up again and again in AI drafts. The detector looks for that repeated, polished feel.
- Structural repetition - AI often follows the same paragraph shape over and over. Human drafts tend to be less tidy.
How Accurate Is It Really?
Let's be honest: no AI detector is perfect. Longer, cleaner text gives a better signal than a short paragraph. Very short text, heavily edited text and formal non-native English can be harder to judge. Treat the result as a warning light, not a verdict.
What Detectors Can't Do
Detectors can't tell you which AI model wrote something. They can't reliably catch heavily edited AI text. They also can't always separate a careful human writer from a machine-written draft. If a result looks serious, read the text yourself before making a decision.
When to Use AI Detection
Teachers can use it to decide what needs a closer look. Editors can use it to review suspicious submissions. SEO teams can use it as one more quality check. In all cases, it should start a review, not end one.
How to Use
- Paste the text you want to check into the editor.
- Click Analyze to run the detection.
- Review the confidence score and highlighted sections.
- Use the detailed breakdown to see which patterns were flagged.
Frequently Asked Questions
How do I use the AI Content Detector?
Paste a longer sample and run the analysis. Read the score, factor breakdown and notes together. Do not judge a text from one number alone.
How accurate is this AI detector?
It is a signal, not proof. It works better on longer text and should be paired with human review. Short samples, formal writing and heavily edited text can be hard to judge.
Why do AI detectors give different scores?
They look at different patterns and use different training data. A text can look suspicious to one detector and clean to another. That is why detector results should never be treated as final evidence.
Can human writing be flagged as AI?
Yes. Formal, polished or non-native English writing can trigger false positives. A careful student, legal writer or business writer can sometimes look "too even" to a detector.
Can it tell which AI model wrote the text?
No. It can point to patterns, but it cannot prove whether ChatGPT, Gemini, Claude or another tool wrote it. Model names in detector results should be treated with caution.
Is my text stored?
The detector needs to send the sample for AI analysis, so do not treat it like a local-only counter. Avoid passwords, private records, legal secrets and customer data. Use the result as a review signal, not as a final judgment.