Introduction
AI detectors have become increasingly sophisticated in 2026, using advanced machine learning techniques to identify content generated by AI systems like GPT-4, Claude, and others.
How AI Detection Works
AI detectors analyze text using several key methods:
1. Perplexity Analysis
Perplexity measures how "surprised" a language model is by a piece of text. AI-generated content typically has lower perplexity because it follows predictable patterns.
2. Burstiness Detection
Human writing naturally varies in sentence length and complexity. AI tends to produce more uniform text with less variation.
3. Statistical Pattern Recognition
AI detectors look for patterns common in AI-generated text like repetitive structures and predictable vocabulary choices.
Major AI Detectors
- Turnitin - Used by educational institutions
- GPTZero - Pioneer in accessible AI detection
- Originality.ai - Popular among content creators
Conclusion
Understanding how AI detectors work helps you create better, more authentic content.