Your Text
0 characters
Analysis Results
Perplexity
Burstiness
Vocabulary
Sentence Var.
Sentence-by-Sentence Analysis
Likely AI
Mixed
Likely Human
How Does the AI Content Detector Work?
Our AI content detector analyzes text using multiple linguistic patterns to determine whether it was written by a human or generated by AI models like ChatGPT, Claude, Gemini, or others.
What It Measures
- Perplexity — How predictable the word choices are. AI text tends to have lower perplexity.
- Burstiness — The variation in sentence complexity. Humans naturally alternate between long and short sentences.
- Vocabulary Richness — The diversity of words used. AI often relies on a narrower set of common words.
- Sentence Variation — How much sentence length varies. Human writing is typically more varied.
Tips for Accurate Results
- Use at least 200 characters for more reliable analysis
- Paste complete paragraphs rather than isolated sentences
- The tool works best with English text
- Results are estimates — no detector is 100% accurate
Frequently Asked Questions
Is this tool free to use?
Yes, completely free with no sign-up required. Analyze as many texts as you want.
Can it detect ChatGPT, Claude, and Gemini content?
The detector analyzes general AI writing patterns common across all major AI models.
How accurate is it?
No AI detector is 100% accurate. Our tool uses statistical analysis and should be used as one data point among many. Longer texts produce more reliable results.