Unmasking AI: The Best Detectors for Essays

As technology evolves, AI-based writing tools such as ChatGPT are becoming increasingly popular among students and academics. These little wonders of AI technology can produce not only tons of AI fake news but also essays that appear to have been written by experienced human authors, making it difficult for teachers to assess the originality of the work. This is precisely why one begins to wonder what the best AI detectors for essays are.

The Best Detectors for Essays

Indeed, it is quite a sight to see how these machines can write so convincingly. This very fact, however, has raised an important question: “If someone can use an AI to write an essay, how do we know who is really the author of the text?

Why is it important to detect an AI-based essay?

The answer to this question is simple: authenticity, fairness and integrity. Technological development has simplified the accomplishment of many tasks, including essay writing. In the modern world, everyone seems to be in a constant race against time and toward easy money. AI has therefore provided an attractive shortcut to completing challenging tasks such as essay writing more quickly.

An AI detector for can help maintain the integrity of the academic field by verifying the originality of content. It can highlight the work of an original human author over that of a machine, ensuring that credit truly goes where it is due.

More than an AI detector Preserve what’s human

We bring transparency to humans navigating a world filled with AI content. GPTZero is the gold standard in AI detection, trained to detect ChatGPT, GPT4, Bard, LLaMa, and other AI models

ZEROGpt Homepage

How do AI detectors work?

AI detectors use complex algorithms and machine learning techniques to analyze content of any kind. They look beyond simple text similarities and can detect anomalies in the way a sentence is constructed or how an argument is structured.

These tools will not only ensure that students use their intellectual skills to do academic work but also preserve quality and confidence in education. Overall, the detection of AI-based essays is not only a necessity but an inevitable step toward the future of education.

How does AI technology detect plagiarism and other forms of academic dishonesty in essays?

AI uses sophisticated algorithms to compare the text of the paper with a wide range of sources, such as books, academic articles, online publications, and document databases. These algorithms analyze text structure, sentences, keywords, and other linguistic features to detect similarities or matches. In addition, AI can also detect the presence of incorrectly formatted or missing citations.

But let’s cut to the chase: the best AI detectors for essays.

In our research, we tested numerous models, but rather than overload you with information about poorly made or useless software, we will focus only on those that we think are truly worth looking into.


GPTZero is one of the best AI-based essay detectors available on the market. It is equipped with advanced technology that enables it to analyze text, quickly identify any grammatical, spelling or syntactical errors and suggest appropriate changes.

ai detector for essays zerogpt

You can upload .pdf, .doc, .docx, .txt files. And obviously use the form on the front page of the online version. There is also an extension for Chrome, one for Canva, and upon request, the API as well.

Up to 5000 characters at a time can be entered into the form and have it checked.

This tool is not only extremely accurate in detection but also very easy to use.

Cost per monthBasicEssentialPremium
Month SubscriptionFree$15$24
Year SubscriptionFree$10$16


Undetectable is advanced software and identifies virtually all AI texts. We have already talked about it in an article where we said that by now “you need a good AI detector.” This software, as the name suggests, is designed to be foolproof. It thoroughly and accurately examines writings, looking for all possible clues or patterns typical of AI.

ai detector for essays undetectable

This tool is especially useful in academic or professional settings, where reliability and originality of content are of utmost importance.

Up to 15000 characters can be entered into the form and checked at a time.

Undetectable is extremely easy to use.

Cost per monthBasic10,000 Words / Month380,000 Words / Month

With Undetectable it is also possible to configure your tariff manually according to your needs.

Undetectable prices

How we tested the best AI detectors for essays and with which texts

To test these tools we like to use William Shakespeare’s Hamlet, in case it occurs to anyone to say that it is an artificial text.

To test the recognition of ChatGPT and company, we have our Mr. Robot write a random story and use that.

Dr Philip Seaton on Writing Academic Essays at University

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