Two powerful tools
Detect AI-generated text and make it more human.
Analyze text
16 independent modules analyze your text: sentence length variance, Zipf distribution, pseudo-perplexity, n-gram analysis, entropy calculation and more.
- Detect invisible Unicode markers
- Pseudo-perplexity analysis
- Sentence-by-sentence classification with highlighting
- Academic, legal & technical modes
Results in 3 steps
Paste your text
Copy your text and paste it into the text field. Up to 30,000 words per analysis.
Start analysis
16 modules check your text in real-time – right in your browser, no server upload.
Understand results
Get an overall score, module details and flagged passages with explanations.
Under the Hood: 16 Analysis Modules
No black box. We show you exactly how AIDetego works.
Statistical Analysis
~43% weightSentence Length Variance
AI writes more uniformly. Humans vary more.
Zipf Distribution
Checks if word frequencies follow the natural Zipf's law.
Shannon Entropy
Measures the information density of the text.
Vocabulary Depth
Type-Token Ratio: How diverse is the vocabulary?
Linguistic Analysis
~31% weightPseudo-Perplexity
How predictable is the text? AI = very predictable.
Sentence Classifier
Classifies individual sentences by AI probability.
N-Gram Analysis
Detects typical AI word sequences and patterns.
Readability Index
AI text often hits the readability 'sweet spot'.
Structural Analysis
~16% weightParagraph Structure
AI often creates perfectly uniform paragraphs.
Repetition Patterns
Detects repetitive sentence starters and phrasings.
Cohesion Analysis
Excessive use of connective words and transitions.
Punctuation
Analyzes patterns in punctuation usage.
Artifact Detection
~10% weightUnicode Scanner
Zero-width characters, BOM and invisible markers.
Formatting Check
Markdown artifacts and AI-typical formatting.
Phrase Detection
750+ known AI-typical phrasings.
Homoglyph Detector
Detects hidden character substitutions.
How the Score is Calculated
The final score (0–100%) is calculated from all active modules. Each module provides a partial score, weighted by its reliability. Correlation boosts amplify the signal when multiple independent modules agree.
Intelligent Adaptation
Not all text is the same. Our modes adapt the analysis to your text type.
Academic
For scientific texts. Reduces false positives for formal language and technical terms.
- Formality tolerance increased
- Structure modules dampened
- Technical vocabulary considered
Legal
For legal documents. Considers typical legal language and document structures.
- Repetition tolerance increased
- Formal phrases allowed
- Structural strictness reduced
Technical
For technical documentation. Recognizes code comments, API docs and technical guides.
- List tolerance increased
- Technical terms neutral
- Step-by-step allowed
Why AIDetego?
16 Analysis Modules
From statistical variance to neural classification – comprehensive detection on a scientific basis.
Perplexity Analysis
Measures how predictable the text is. AI text has low perplexity – a core signal of commercial detectors.
Adaptive Modes
Academic, Legal, Technical – adjusts weights to your text type and reduces false positives.
Transparent Results
See exactly which module detected what. No black box – every score is traceable.
Maximum Privacy
Your text never leaves your browser. No server transfer, no storage, GDPR compliant.
30,000 Words
Up to 30,000 words per analysis. 30x more than GPTZero. As often as you want, free forever.
AIDetego vs. Others
| Feature | AIDetego | GPTZero | Originality.ai |
|---|---|---|---|
| Free to use | |||
| Word limit | 30,000 | ~1,000 | Paid |
| Unlimited usage | |||
| No sign-up required | |||
| 100% client-side | |||
| German texts | |||
| Humanize text | |||
| GDPR compliant |