Used by over 10 million teachers and students across more than 100 countries, GPTZero detects AI-generated text across major language models while providing a suite of writing verification tools
AI tools for detection
3,708 live tools · ranked by monthly traffic and community votes · dead links removed automatically
Winston AI is an AI content detector and plagiarism checker built for education, SEO, and writing.
AI or Not is an AI detector that checks whether images, text, video, audio and music were generated by AI, and flags deepfakes.
Pangram Labs makes an AI detector that checks whether text was written by a person or generated by a language model.
Illuminarty detects whether an image or a piece of text was created by AI.
Sapling AI Detector scores pasted text or uploaded PDF and Word files for the probability that a model wrote it.
WriteHuman is an AI humanizer that rewrites machine-generated drafts so they read like a person wrote them.
Your voice, synthesized
Sightengine is an API service for moderating and analyzing user-generated content.