X Detector is a free online AI content detector that helps you tell human-written text from content generated by models like ChatGPT, Claude, and Gemini. It’s designed for students, educators, writers, and teams that need to understand how much AI is present in a piece of writing.
Multilingual AI content checks
X Detector supports 20+ languages, making it useful for international classrooms and distributed teams. Paste a text sample (up to 5,000 characters) to get an AI-likelihood score and a clear breakdown of what looks AI-generated versus human-written.
Accuracy and data privacy
The X Detector model is trained on 10 billion samples to improve detection accuracy and reduce false positives. The service also emphasizes privacy: submitted text is used only for analysis and isn’t intended for public access.
AI Humanizer for more natural writing
In addition to detection, X Detector includes an AI Humanizer that rewrites AI-generated text to read more naturally. This can help adapt generated drafts for academic integrity requirements, publishing standards, or brand communications.

