GPTZero
Checks whether text may have been written by AI, to support conversations about honest writing.
What is GPTZero?
GPTZero estimates whether text was written by a human or AI. Teachers use it as one signal when reviewing work, alongside writing history and conversations with the learner.
Think of it as a starting point for a conversation, not a final verdict.
What you can do with it
- AI detection: probability for text
- Highlights: sentences likely written by AI
- Writing reports: for Google Docs history
- Batch checks: many files
Get started in 3 steps
- Go to gptzero.me and sign up free
- Paste text or upload a file
- Read the results carefully
Try this today
- Check a piece of your own writing
- Compare an AI-written paragraph with your own
- Use it to start a conversation about AI use
Good to know
- Not 100% accurate: false positives happen, especially for non-native writers
- Never use alone to accuse: talk to the learner
- Free plan: limited checks
Quick challenge
Test GPTZero on your own writing and an AI paragraph, and compare!
Picked by the Scrollwell team · updated 25 Oct 2026. GPTZero is run by its own company — read its privacy terms before you add learners' names or marks.