Free AI Detection Tool
AI Content Detector
Analyze any text to determine if it was written by AI or a human. Get instant results with detailed analysis of writing patterns, perplexity, and authenticity.
Minimum 50 characters required0 / 10000
How It Works
1.Perplexity Analysis: Measures how predictable the text is. AI-generated content tends to be more predictable.
2.Burstiness Check: Examines sentence structure variation. Human writing typically has more diverse patterns.
3.Pattern Detection: Identifies common AI phrases and writing patterns that may indicate AI generation.
4.Vocabulary Assessment: Analyzes word choice and language naturalness to distinguish human from AI writing.
5.Score Interpretation: Results are scored from 5-95 (not 0-100) to reflect the inherent uncertainty in AI detection. We avoid absolute extremes because no detection method is perfect. Lower scores (5-29) suggest AI-generated content, middle scores (30-74) indicate mixed signals, and higher scores (75-95) suggest human-written content.