100% Free
AI Text Detector
Analyze texts and detect whether they were written by AI or a human.
Text Input
Paste the text to analyze (at least 50 words)
0 words
Frequently Asked Questions
Everything you need to know about our AI Text Detector
Changelog
Die neuesten Updates und Verbesserungen unseres AI Text Detector
v2.2.0November 7, 2025
8 More Research-Based Metrics (Stylometry & POS Analysis)
- • Adjective/Adverb Analysis: AI uses more adjectives but fewer adverbs than humans
- • Adj./Adv. Ratio: High ratio = strong AI signal (2025 research)
- • Punctuation Patterns: Exclamation density (ChatGPT "loves" !), question mark analysis
- • Passive Voice: AI uses significantly more passive than active voice (contrary to expectation!)
- • Avg. Word Length: Proxy for vocabulary complexity
- • Numbers/Symbols Density: AI uses more numeric content
- • Now 19 scientifically validated metrics total (based on stylometry research)
- • New UI: Green cards for research-based 2025 metrics
v2.1.0November 7, 2025
5 New Scientifically Validated Metrics
- • TTR (Type-Token Ratio): Measures lexical diversity - low values indicate AI
- • 3-Gram Repetition Analysis: Detects repeated 3-word sequences (AI repeats more often)
- • Sentence Length Variance (Standard Deviation): Low values = uniform AI sentences
- • Flesch Reading Ease: Evaluates text complexity (0-100 scale)
- • Personal Pronoun Density: Measures personal tone (AI uses less I/You/We)
- • All new metrics based on 2025 AI detection research
v2.0.0November 7, 2025
AI Model Detection & Extended Pattern Analysis
- • New feature: Detection of AI model families (ChatGPT, Claude, Gemini)
- • Detailed pattern analysis with 6 key metrics (em-dashes, sentence uniformity, etc.)
- • Recognition of over 40 model-specific phrases and AI-typical words
- • New UI: Analysis results now displayed below the text input field
- • Extended copy function with all pattern details
v1.0.0August 12, 2025
Initial Release
- • Two-stage AI text detection with compression and language analysis introduced
- • Confidence display including progress bar integrated
- • FAQ section with frequently asked questions about the AI text detector added