AI Study, Teaching & Research Tools · AI Content Detectors & Plagiarism Checkers

GPTZero logo

GPTZero review

AI detection tool that estimates how likely a document was AI-generated, highlighting sentences and showing writing history reports.

Product profile by the ToolPilot editorial team · Updated 30 Oct 2026 · How we review

Visit GPTZero

Some links on this site are affiliate links. If you buy through them we may earn a commission at no extra cost to you. Our rankings are not for sale; sponsored placements are always labelled.

Best for
Teachers and editors checking whether text was written by AI
Free plan
Yes
Pricing
Check the provider's website for current pricing in your currency.
Company origin
United States

Overview

GPTZero is aI detection tool that estimates how likely a document was AI-generated, highlighting sentences and showing writing history reports. It is a strong fit for teachers and editors checking whether text was written by AI. It is used internationally — check that it supports your country's tax rules, currency and payment methods.

Pros

  • Free scans for shorter texts
  • Built with educators in mind
  • Google Docs and LMS integrations

Cons

  • Results are probabilities, not proof
  • Short texts give less reliable results

Who should consider GPTZero?

Consider it if you are among teachers and editors checking whether text was written by AI. Before you buy, test it with a week of real work, check the price for your number of users, and confirm you can export your data if you switch later.

GPTZero alternatives

SoftwareBest forFree planOrigin
QuillBot logoQuillBotRewriting, summarising and grammar checksYesUSVisit
NotebookLM logoNotebookLMStudying and summarising your own documentsYesUSVisit
Consensus logoConsensusFinding what research papers sayYesUSVisit
Elicit logoElicitLiterature reviews and data extraction from papersYesUSVisit
scite logosciteResearchers checking how a paper has been citedNo (trial may exist)USVisit
SciSpace logoSciSpaceStudents and researchers reading academic papersYesINVisit

See all GPTZero alternatives →

Compare GPTZero

GPTZero vs QuillBotGPTZero vs NotebookLMGPTZero vs ConsensusGPTZero vs ElicitGPTZero vs sciteGPTZero vs SciSpaceGPTZero vs PaperpalGPTZero vs ResearchRabbit

Frequently asked questions

Does GPTZero have a free plan?
Yes, it offers a free plan or free tier with limits. Check current limits on the provider's website.
What is GPTZero best for?
Teachers and editors checking whether text was written by AI.
What are the best alternatives to GPTZero?
QuillBot, NotebookLM, Consensus, Elicit, scite.