GPTZero Reviews 

135
TrustScore 2.5 out of 5

2.3

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Review summary

Created with AI, based on recent reviews

Looking at 42 reviews, most reviewers were unhappy with their experience overall. Many customers found the product to be an unhelpful and often useless tool for its intended purpose. Reviewers consistently reported that the artificial intelligence detection was highly inaccurate. This inaccuracy frequently led to human-written content being incorrectly flagged as AI-generated. People expressed frustration with the tool marking eloquent sentences, formal writing, or even quotes as AI. Several customers noted that texts written years before AI chatbots existed were also incorrectly identified as AI. This led to a frustrating user experience, with some feeling forced to distort their writing or wasting time trying to understand the flags. The product was described as unreliable and dysfunctional, suffering from lag and providing misleading results.

What people talk about most

Artificial intelligence

Reviewers express strong dissatisfaction with artificial intelligence detection tools, frequently labeling... See more

User experience

Customers consistently express frustration with the user experience, describing the app as terrible and one... See more

Product

Reviewers highlight negative aspects of the product, with many finding it dysfunctional and a "useless tool."... See more

Reviews shaping this summary

Rated 2 out of 5 stars

It was quite useful until all the humanizing models came. Now, it highlights more than half the text as AI and tells you 2% AI. I don't get it. Also, there is no one to reach out to for customer se... See more

Rated 1 out of 5 stars

This app is ruining my writing. I've spent years training my academic writing capabilities. I keep getting flagged for LLM use unfairly. My own genuine writing keeps getting flagged. I have to distort... See more

Rated 1 out of 5 stars

My daughter has been using it this year, and this is so far one of the most useless tools I have seen. It takes quotes (required by teachers) and marks them as AI, it takes eloquent sentences and req... See more

Rated 1 out of 5 stars

Not accurate at all, gave it text straight from ChatGPT 90% human. I am sorry for all the students who got accused by this tool, and even more scared of those who don't study and use AI instead and ge... See more


Company details

  1. Software Company
  2. Software Vendor

Written by the company

GPTZero is the first and one of the fastest-growing AI text detectors, with precise and in-depth results used by more than 4 million people, from educators, students, writers, to AI data labelers. GPTZero offers advanced AI text detection of all major large language models, from ChatGPT to Claude, Gemini, Llama and more. GPTZero is used by institutions and companies around the world including the University of Louisiana system, the New York Times, Purdue University and more.


Contact info

2.3

Poor

TrustScore 2.5 out of 5

135 reviews

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No recent history of asking for reviews

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2.3

All reviews

(135)

45 reviews in the last 12 months

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Rated 1 out of 5 stars

I gave this stupid tool several human…

I gave this stupid tool several human texts and it detected them all as AI text. I strongly believe that the creator of this tool should be punished because it is causing innocent people to be accused of using AI and many conflicts to arise.

December 27, 2025
Unprompted review
Rated 1 out of 5 stars

This app is ruining my writing

This app is ruining my writing. I've spent years training my academic writing capabilities. I keep getting flagged for LLM use unfairly. My own genuine writing keeps getting flagged. I have to distort my nice sentences and even paragraphs. This is ridiculous, I absolutely hate this app.

December 19, 2025
Unprompted review
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Rated 2 out of 5 stars

No longer useful; terrible customer service

It was quite useful until all the humanizing models came. Now, it highlights more than half the text as AI and tells you 2% AI. I don't get it.

Also, there is no one to reach out to for customer service. I want to cancel my service or at least not move forward with it, and it is not at all clear on the website how to actually cancel or modify your subscription. Maybe someone can answer this.

November 19, 2025
Unprompted review
Rated 1 out of 5 stars

Annoying

It's fine but while it is scanning it gives annoying "philosophical quotes". I don't want to see the quotes, it's really bad stuff like "how we spend our days is how we spend our lives". I'm really annoyed by these quotes.

November 4, 2025
Unprompted review
Rated 1 out of 5 stars

Not accurate at all

Not accurate at all, gave it text straight from ChatGPT 90% human. I am sorry for all the students who got accused by this tool, and even more scared of those who don't study and use AI instead and get away with it. Google Docs integration is great, but not perfect.

October 22, 2025
Unprompted review
Rated 1 out of 5 stars

Super inaccurate results

Super inaccurate results, my draft was 100% humanly written, yet it was detected as 100% AI. Do not use it to punish due to the lack of accuracy.

October 20, 2025
Unprompted review
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Rated 1 out of 5 stars

LLM matching is not what this tool should be.

My daughter has been using it this year, and this is so far one of the most useless tools I have seen. It takes quotes (required by teachers) and marks them as AI, it takes eloquent sentences and requires them to be brutish and simple. This tool doesn't actually look for writers that know how to write, instead it relies heavily on LLM to "decide" accuracy. it's an oxymoron of a tool. For it to have so many stars can only be bots used by the company to prop up their sad tool.

September 29, 2025
Unprompted review
Rated 1 out of 5 stars

Weird way of wording

Wanted to pay for the $12.99 plan thinking it was going to be a monthly payment but it was billed to me in yearly $194. Cancelled it and still it was marking down my usage when using their free option. would not reccomend.

September 16, 2025
Unprompted review
Rated 1 out of 5 stars

Garbage Site, Scam, False.

Crappy model, and scam features. I pasted a portion from a New York times bestselling book from 15 years ago. It said the text is 76% AI. What A JOKE. Do not pay for this site, I have read about hundreds being scammed by this site.

August 21, 2025
Unprompted review
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Rated 1 out of 5 stars

Opaque service and questionable practices

No clear way to cancel a subscription. Despite several attempts, GPTZero kept trying to charge my card. I had to go through my bank to block them. Lack of transparency and respect for customers.

August 28, 2025
Unprompted review
Rated 1 out of 5 stars

This AI detector is not reliable and…

This AI detector is not reliable and should not be used at all. It is the worst AI detection tool I have tried. I did not like it because it constantly flags human-written text as AI-generated. It gave inaccurate results and was very frustrating to use. I would not recommend this tool to anyone

August 25, 2025
Unprompted review
Rated 1 out of 5 stars

The site is deteriorating

the site was initially good, but everything even the messages from my whatsapp are being flagged as ai written. I am recently relying on zerogpt and turnitin if i am scanning for ai content for my site

August 16, 2025
Unprompted review
Rated 1 out of 5 stars

I HATE IT

i hate it because even tho. I dint use any ai and just search in the google some rhyme because of my fluent english its missed treated as a ai

August 17, 2025
Unprompted review
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Rated 2 out of 5 stars

frustrating experience

I am still waiting for the day when this tool will give correct results. It's always positive false. No matter what I do. If I write a short paragraph or multiple paragraphs, the result is always same.
Very frustrating experience.

July 27, 2025
Unprompted review
Rated 1 out of 5 stars

The only thing zero about GPTZero is…

The only thing zero about GPTZero is the customer service. And honestly, it doesn't even seem like they care if they get bad reviews or not. I had many questions, but foolishly signed up anyway and anytime I have questions... crickets.

August 1, 2025
Unprompted review

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