AI Content Detector
Detect if text was written by a human or an AI model — and which one
⚠️ AI detection is probabilistic and not 100% accurate. Results should be used as guidance, not as definitive proof.
Frequently Asked Questions
How does the AI content detector work?+
It combines statistical analysis (burstiness, lexical diversity, fingerprint phrases) with deep Gemini AI review. It checks for uniform sentence length, predictable word choices, and phrases like "furthermore", "delve", "it is worth noting" that AI models overuse.
Which AI models can this tool detect?+
It identifies text from ChatGPT (GPT-4, GPT-4o), Claude (Anthropic), Gemini (Google), and Llama. Each model has a distinct writing fingerprint — for example, ChatGPT is formal and comprehensive, while Claude tends to be more conversational.
Is the AI content detector 100% accurate?+
No detector is 100% accurate. The tool returns a probability score. Formal writing, technical documentation, or non-native English may sometimes be flagged as AI. Use results as guidance, not definitive proof.
Is this AI detector free to use?+
Yes — completely free. No account, no sign-up, no limits. Just paste your text and click Detect.
What is the minimum text length for accurate detection?+
Minimum 100 characters are required. For the best results, use 500+ characters — more text means more linguistic patterns for the AI to analyze.
🔒 All processing happens directly in your browser. No files are uploaded to our servers. Your data stays private and is never stored or shared. GDPR compliant.