GPTZero: AI Detection & Writing Replay
Extension Actions
- Extension status: Featured
- Live on Store
Bring AI detection, citation checks, live essay feedback, and writing replays directly into Google Docs and your workflow.
The GPTZero Extension is the best solution for enhancing critical thinking and human writing, as recently featured in The New Yorker, New York Times, and Harvard Business Review.
The new Google Document experience is custom built for teachers, students, and researchers. It includes four new powerful features:
(1) Live AI detection checks instantly as you write
(2) Customizable feedback and writing comments in Google Docs
(3) Writing video replay and report, with a new typing pattern analysis
(4) Bibliography, citation, and a research-focused fact check
➤ What is our writing video replay?
GPTZero’s Writing Replay brings your Google Docs writing process to life, showing exactly how a piece was written, edited, and pasted. Now supporting multiple editors, switch to see how different writers contributed to the final document.
➤ What makes the GPTZero Writing Report different?
Unlike other writing replay solutions like Draftback, Brisk Replay, Grammarly Authorship, or Turnitin Clarity, the GPTZero Writing Report includes:
• Multi-user detection: See how much each writer contributed by percentage.
• Instant replay: Fast-loading, high-resolution writing playback.
• Activity insight: Identify frequent edits, pastes, and writing bursts.
• Human vs. AI analysis: Built-in AI detection flags large pastes and unnatural text.
• Typing pattern insights: Our proprietary algorithm uncovers human typing behaviors.
• Security: Enterprise grade data security and privacy, SOC2, and FERPA compliance.
➤ How does GPTZero writing and typing analysis work?
GPTZero’s first-of-its-kind natural typing analysis constantly runs AI detection on large copy-pastes, and layers a proprietary algorithm trained on millions of documents that identifies human typing and natural editing patterns.
➤ What is GPTZero Bibliography and Source Check
Check writing for AI-hallucinated and inaccurate bibliographies, uncited claims, and plagiarism. Then receive suggestions to improve sources and citations.
➤ What is GPTZero Writing Feedback
Fully customize giving feedback by uploading a rubric and assignment details and specifying the focus. Feedback is live-drafted directly into Google Docs comments for convenience.
➤ How can teachers integrate GPTZero into a course?
Thousands of educators have added GPTZero directly into their syllabus as an assistant for students during their writing process.
[5m read] From Catching to Coaching, How One Professor Added GPTZero to the Classroom: https://gptzero.me/news/from-catching-to-coaching-how-one-professor-added-gptzero-to-the-classroom/
GPTZero is committed to supporting classroom teaching. This summer, 3500+ educators participated in our Teaching Responsibly with AI webinar series. We’re also the official AI adoption partner for the American Federation of Teachers, and work closely with graduate schools of teaching including the University of Virginia and Penn State to co-develop GPTZero Writing Process tools for modern writing pedagogy.
Latest reviews
- Elias Hofmann
- I love this
- Kim Saint
- I've been a huge fan and heavy user for the last 2 years. I was highly confidant the AI detection reports were correct. However, since the April 2, 2026 (2026-03-30-base, Model 4.4b) release reports have been concerning. I can paste 100% AI straight from an AI tool and GPT Zero returns 100% human. I have tested this multiple times on different data. I have reported it but user support showed zero interest. I have moved to another tool and getting the results I expect. Frustrating as it does take a while to build confidence when using a new tool and I never had an issue before Model 4.4b. Hopefully, it will be corrected in the next release.
- hayden chun
- GPT zero has been very helpful in my writing process and checking me whether or not my work could or would be flagged as ai
- Isaiah Meashintubby
- Very easy to use, a real game changer
- Barrack Obama
- I greatly recommend, works for many of your daily uses, youtube, google docs, sheets, and a lot more! Its also more accurate than most detectors such as quillbot or some random AI detector that helps you paraphrase.
- Kelis Carter
- A great help with assignment and showing my actually work.
- Ana Jeramaz
- Very easy to use, has a lot of options.
- Anthony Thom
- Very handy for late night assignment runs.
- Harrison Gu
- very useful. highly recommend.
- Chigoziem Odionye
- GPTZero has been nothing short of fantastic quite honestly. The best I've used and encountered so far.
- Kate McAdams
- good stuff
- Anthony Vargas
- great helps with finding ai
- Brendan Hanna
- Great product
- ok.
- It helps me to monitor and check for any ai element in my work and prevents me from being marked down
- Marion Baxtresser
- fire
- Deniz Ikili
- Downloaded this a few days ago and honestly? It works. Highlight text, get a result in like two seconds. No waiting around, no copy-paste nonsense. The UI is dead simple and it catches the AI stuff I throw at it. Worth the subscription if you're actually using it regularly.
- Saine Lei Phyu
- This is one of the best AI detectors.
- Ayanfeoluwa Adebayo
- Very accurate AI detector!
- Aryan Arun Tumsare
- Very helpful in research paper writing and essays.
- Renae Hapeta
- Great writing freedback!
- Dev Chauhan
- Really good, easy, and useful I recommend for use
- Krishnavie U
- Very useful and convenient!
- xCa_aulx
- Amazing and very useful. I highly recommend it.
- Sabrina Sultana
- its the best ai detector ive seen. I use it for all my assignments
- Marko
- Really useful for writing better and detecting ai texts. I use this a lot for my assignments.
- Bro tera
- Amazingly accurate Ai detector, very accurate and very easy to use.
- Raquel Flores
- Very accurate. Really enjoy it!
- Emory Ready
- Very accurate AI detector! I love using the video to watch a student copy/paste their information into an assignment, giving further proof of their work not being theirs.
- Elite Smith Word
- Amazing Ai detector, very accurate
- erin “lomax” lomakin
- seriously love not being afraid to turn shiy in just kidding im still afraid
- Amar Shammar
- Amazing Ai detector, very accurate
- Jooho Park
- Great AI dectactor, which is very accurate, and helps me with my work so much.
- Brianna Mariluch
- This is a very convenient and accurate AI detector app. I love that it automatically scans a document that is opened in Google Docs which saves me time from uploading multiple essays.
- Deveane Roberts
- This is a very convenient and accurate AI detector app. I love that it automatically scans a document that is opened in Google Docs which saves me time from uploading multiple essays.
- Deveane Roberts
- This is a very convenient and accurate AI detector app. I love that it automatically scans a document that is opened in Google Docs which saves me time from uploading multiple essays.
- Benjamin Kolovsky
- Recommended highly for students of all grades, it helps with google, docs websites and more!
- Neil Ramdjiawan
- I think this AI Detector is very helpful, because it limits me to use AI for documents. This helped me limit my use of AI, and like this I learned more! Thanks for making this!
- Ari Kvitky
- Amazing tool!
- Joseph Manross
- Very solid and helpful with my English Comp II. Would recommend as a fellow college student!
- Emily Santos
- Helped me with english class this semester.
- Jolomi Martha
- Love this, very helpful, and I am enjoying their service so far. Thank you to the GPTZero team
- Gryffin Capitalist
- Very happy with their service so far. Thanks to the GPTZero team.
- Lintle Thaanyane
- Very helpful. I highly recommend it.
- Rabah Iaklioune
- Best ai detector. I recommend.
- jeng ri
- is really good . recommended
- pretty rajkumari
- Super helpful! Really helps me double-check my work and feels more at ease before hitting submit. Highly recommend for any students.
- Tyler Henry
- Chrome extension makes life so easy
- Kevin
- Great App very useful.
- Adi C.
- This app is very useful in validating your responses when writing emails.
- jonaza hopkins
- I just love this app because it help me to see if i'm using Ai