Is AIDetego really free?

Yes, AIDetego is 100% free and can be used without registration. There are no hidden costs, no limits, and no premium version.

No. The entire analysis happens locally in your browser (client-side JavaScript). No text leaves your device – not to our servers or any third party.

Which AI texts can AIDetego detect?

AIDetego detects typical patterns from ChatGPT, Claude, Gemini, Copilot and other AI models using 16 analysis modules: sentence structure, word choice, Unicode markers, formatting and more.

How accurate is the AI detection?

AIDetego uses 16 independent analysis modules and provides a probability estimate. No AI detector is 100% accurate – our results should be treated as an indication, not proof.

Does AIDetego work with German texts?

Yes! AIDetego is specifically optimized for German and English texts. The AI phrase database contains 140+ patterns in both languages.

Can I use AIDetego for my thesis?

Yes, AIDetego can help detect AI-generated passages in academic texts. Use Academic Mode for optimized results. Note: Results are estimates and not proof.

Free ChatGPT Detector

Check whether a text was generated by ChatGPT (GPT-3.5 or GPT-4). AIDetego uses 16 independent analysis modules that detect typical ChatGPT patterns – entirely local in your browser, without sending your text to any server.

How Does AIDetego Detect ChatGPT Text?

ChatGPT-generated text has characteristic patterns that differ from human writing. ChatGPT tends to produce uniform sentence lengths, predictable word sequences, and specific vocabulary distributions. Our 16 modules systematically analyze these features:

Sentence Length Variance – ChatGPT writes noticeably uniform sentences. Humans naturally vary more.
Pseudo-Perplexity – ChatGPT text is highly predictable – a core signal for AI detection.
Phrase Detection – 750+ typical ChatGPT phrases like 'It's important to note' or 'In today's digital landscape'.
N-Gram Analysis – Detects typical ChatGPT word sequences that occur statistically more often than in human text.

Which ChatGPT Versions Are Detected?

AIDetego detects text from all common ChatGPT versions:

ChatGPT-3.5 – The free version with characteristically formal patterns
ChatGPT-4 – Writes more naturally but still shows detectable statistical patterns
ChatGPT-4o – The latest version, detectable through entropy and variance analysis

Who Uses a ChatGPT Detector?

Teachers & Professors – Check submitted papers for ChatGPT usage
Content Managers – Quality control of purchased content
Journalists – Verification of sources and texts
Students – Check own texts before submission

Frequently Asked Questions

Is the ChatGPT detector free?

Yes, AIDetego is 100% free, with no sign-up and no limits.

How accurate is ChatGPT detection?

AIDetego uses 16 independent modules for a comprehensive analysis. Results are probability estimates – no AI detector can guarantee 100% accuracy.

Are my texts stored?

No. The entire analysis runs locally in your browser. No text leaves your device.

Can ChatGPT-4 also be detected?

Yes. Although GPT-4 writes more naturally, it still shows statistical patterns that our modules can detect – particularly through pseudo-perplexity and Zipf distribution.