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Top 3 ChatGPT detectors

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ChatGPT has seen numerous applications since its November 2022 launch. However, these also include students cheating on their assignments or employees using ChatGPT to get their work done. This has led to a problem where AI-generated work is becoming indistinguishable from human work. 

In this article, we’re talking about the top three ChatGPT detectors to help you segregate the two. 


GPTZero is a simple online tool designed by ML engineer Edward Tian to detect ChatGPT-generated text. The site has a simple, easy-to-use interface that you can either paste text in or load up a PDF, DOCX or TXT file to check for AI-written text. It spits out results with a single click giving the overall summary, average perplexity and burstiness score of the content. It also highlights the text likely written by AI. 

You can access GPTZero here

Also read: Top 3 ChatGPT alternatives


Writer is a rather fast and somewhat accurate AI content detector that requires either the URL of the page you want to check or simply the text itself. It calculates a “human-generated content” score on a percentage basis that tells how much of the overall text is human-written. Do keep in mind that it has a 1500 character limit which basically makes it useless for longer texts. 

You can access Writer here

OpenAI Classifier 

OpenAI, the creator of the DALL-E and ChatGPT AI bots, has also released a classifier that the company claims can detect whether or not a piece of text was generated using ChatGPT or written by a human. It requires at least 1,000 characters (approximately 150-200 words) and can classify whether the text is very unlikely, unlikely, unclear if it is, possibly, or likely AI-generated.

However, it isn’t always accurate and can mislabel both AI and human-written text, especially if the text material differs significantly from the training data. Using the tool requires a free OpenAI account as well.

You can access the OpenAI Classifier here

Also read: ChatGPT FAQs: 15 Talking Points

Yadullah Abidi

Yadullah Abidi

Yadullah is a Computer Science graduate who writes/edits/shoots/codes all things cybersecurity, gaming, and tech hardware. When he's not, he streams himself racing virtual cars. He's been writing and reporting on tech and cybersecurity with websites like Candid.Technology and MakeUseOf since 2018. You can contact him here: