AI Content Detectors

6 Most Accurate and Reliable AI Content Detectors in 2023

The impact of AI-written content on SEO has not been directly benchmarked by Google, but it presents a more grave issue when it comes to leveraging AI-powered tools to create content - plagiarism. AI content detectors have come to control the quality of the content produced by AI-assisted writing tools. This article discusses what AI content detectors are, how they work, their level of accuracy and reliability, and some of the best AI detectors to try out.

AI detectors emerged to counter AI-generated content on the internet. Recently, ChatGPT shook the wave of the content writing space, and now a human can almost not tell which content is written by a fellow human and which is generated with AI. For context, Google can detect AI content, even though they claim not to be against AI-enabled written content.

The impact of AI-written content on SEO has not been directly benchmarked by Google, but it presents a more grave issue when it comes to leveraging AI-powered tools to create content – plagiarism. Because AI-powered writing tools are built on top of Large Language Models (LLMs) that have been trained on billions of pages of data in the form of books, news, and articles, off the internet, they tend to plagiarise written content.

This article discusses what AI content detectors are, how they work, their level of accuracy and reliability, and some of the best AI detectors to try out.

What are AI content detectors, and how do they work?

AI content detectors are tools that check for AI imprints in a piece of content. They statistically determine whether a piece of written content was created by an AI or a human. The development of tools like ChatGPT that create well-written content with a well-constructed prompt has made it harder to distinguish between human-written and AI-written content. Hence, the need for AI content detectors has arisen.

To better understand how AI detectors work, it is critical to understand how AI-generated content is created. AI-generated content is produced with Natural Language Processing (NLP) techniques that enable computers to imitate human language patterns based on Large Language Models (LLMs) trained on large datasets. AI detectors work in reverse.

AI detectors (usually AI writing detectors) work with language models that predict the likelihood of a word or phrase being written by a computer in a sentence. Their prediction is used to score how human-like content is.

How accurate and reliable are AI writing detectors in general?

AI plagiarism checkers and writing detectors have been on the rise since ChatGPT proved its power in the content creation space. With their level of accuracy in question, these AI detection tools have claims to their respective accuracy. Some even boast of 90 percent plus accuracy in detecting AI-written content.

However, the accuracy of these tools is not always foolproof, and they can be bypassed in certain instances. One way in which these tools can be bypassed is through paraphrasing. Paraphrasing can be done by humans, but there are also content optimizers that can help to automate this process.

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Another way in which AI detectors can be bypassed is by infusing uncommon words into the AI-written content. This can help to boost the originality of the content and make it more difficult for the AI writing detector to identify whether the content is being generated by an AI tool or not.

That said, while AI writing detectors do very well in detecting the imprints of AI tools like ChatGPT in written content, they are not infallible. It is important to exercise caution when relying solely on their accuracy.

6 best AI content detectors worth trying

1. Content at Scale AI Detector

Content at Scale AI writing detector is a free AI detector that forecasts the most probable word combinations that statistically lead to higher AI detection probability. It is trained with billions of pages of data to increase its chances of accurate predictions.

Content at Scale AI Detector ResultHuman-written content

Content at Scale AI Detector's Results for AI-Generated ContentAI-generated content

It breaks down the analysis of written content into content predictability, probability, and pattern. The most interesting part of Content at Scale is its relevance. Unlike some AI detectors, Content at Scale as a ChatGPT detector scans for all versions of GPT including GPT-4!


  • It can function as a ChatGPT detector.
  • It uses an up-to-date AI detection mechanism.
  • Suitable for academics, SEO, marketing, and educational content.
  • It offers an AI writing tool to assist with the content writing process.




Originality AI Homepage is an AI detector and AI plagiarism checker built with content marketing personnel in mind. It accurately detects watermarks of AI content generation tools like ChatGPT, GPT-2, GPT-3, GPT-4, and Google’s Bard. Additionally, it also detects paraphrases in existing written content by QuillBot.

This tool is specific to its audience. It is focused on ‘serious’ web publishers, content agencies, and website buyers with the aim of detecting plagiarism and assisting in producing unique content without AI imprints.


  • It provides AI writing detection and plagiarism checking.
  • It checks for paraphrased content by QuillBot.
  • Team management with unlimited members.
  • Automatic billing.
  • Edit history scanning per user.
  • Unlimited scans for plagiarism and AI detection.

Pricing is billed at $0.01 per credit. 1 credit scans 100 words.

3. GPTZero

GPTZero surfaced around the time ChatGPT was flexing its use cases in content writing in the education niche. As such, it can be regarded as primarily a ChatGPT detector, but it is built as an all-around AI detector with academics in mind.

GPRZero Plagiarism ResultsHuman-written content

GPRZero Plagiarism Results AI-Generated ContentAI-generated content

GPTZero reports two plagiarism indicators in the form of ‘perplexity’ and ‘burstiness’. Perplexity indicates the level of familiarity of GPTZero with the text. This is primarily because GPTZero has been trained on related data. If GPTZero is relatively familiar with the text, it will yield a lower perplexity score. Otherwise, it would yield a higher perplexity score, indicating that the content is more likely to be generated by a human.

The burstiness score compares the variations of the sentences in a text. AI-written sentences vary less in thought flow, scoring lower in burstiness. Humans, on the other hand, write with more variations in thoughts, so the burstiness score of human-written content will score higher.


  • GPTZero provides four free text analyses per hour.
  • It supports text analysis on uploaded files.
  • The pro version supports multiple file uploads.



  • 5K character limit per document.
  • Three files limit per batch upload.

GPTZero Educator

  • 50K character limit per document.
  • Supports unlimited batch file uploads per run.
  • Analyze up to one million words per month.
  • Finetuned detection model for educators.

GPTZero Pro

  • 50K character limit per document.
  • Supports unlimited batch file uploads per run.
  • Analyze up to 1.5 million per month.
  • Access to API for software integration.

4. AI Content Detector

Writer is a robust AI writing platform that offers amongst others – AI content detection. It is an easy-to-use one-stop AI detection tool that allows you to analyze written content for AI imprints before publishing. AI Content Detector Result for Human-Written ContentHuman-written content AI Content Detector Result for AI-Generated ContentAI-generated content

The Writer AI content detector returns a percentage score of how likely the analyzed text is written by a human and an additional suggestion on how to improve.


  • Easy-to-use AI content detector.
  • Analyze 1500 characters at a time.



5. Kazan SEO AI Detector

Kazan SEO is an all-in-one SEO analysis tool that branched into detecting AI content as part of its features. It basically scans a piece of content and delivers output on whether it’s AI-generated or human-written. Nothing complex.

Kazan SEO AI Detector Result for Human-Written ContentHuman-written content

Kazan SEO AI Detector Result for AI-Generated ContentAI-generated content


  • Easy-to-use AI content detection tool with SEO tools.
  • Bulk analysis on a large amount of text.



6. Hugging Face

Hugging Face Homepage

Hugging Face is an AI community used by over 5000 organizations to build, train, and deploy open-source machine learning models. A section of the website has a free AI detection tool to analyze written text for AI watermarks or imprints.

AI content detection with Hugging Face is straightforward – copy and paste the text and interpret the result to get numerical values of how human-written(real) or AI-written(fake) it is.


  • Easy-to-use interface.
  • It provides an API for programmatic interactions.



Can AI-generated content be paraphrased to pass AI detection?

Yes, but read on.

AI-assisted content writing is slowly becoming a norm as the development of advanced natural language processing (NLP) techniques become more useful. However, the unregulated use of AI-powered writing tools leads to plagiarism and misinformation because AI writing tools rely heavily on existing data on the internet, which means that they can produce content that is similar or identical to existing content.

To bypass AI detection and avoid plagiarism, one option is to paraphrase the content. If done correctly, paraphrasing can significantly reduce the chances of detection by AI detectors. However, the effectiveness of paraphrasing depends on the mode of paraphrasing. If the paraphrasing is done by a human, the chances of detection are significantly reduced. On the other hand, if the paraphrasing is done using AI paraphrasing tools like QuillBot, there is a chance of detection by sophisticated AI detectors like

Despite the potential benefits of using AI writing tools, it is still important to fact-check the content generated by them before publishing it. This helps to ensure that the quality of the content is maintained and that the content is accurate and less prone to plagiarism and misinformation. By doing so, you can speed up your content creation process while maintaining the integrity of your content.

Evidently, the right usage of AI-powered writing tools can be very beneficial.

10Web AI Writing Assistant for effective AI-assisted writing

Unquestionably, AI-assisted writing is very beneficial for individuals and teams of content creators with more sophisticated workflows. If it wasn’t, tools like 10Web AI Writing Assistant and Writer wouldn’t exist. They facilitate an optimized content development workflow with faster content creation. With tools like ChatGPT, efficient research can be conducted in less time without trading the quality of the information to build upon. One effective tool to incorporate for AI-assisted writing is 10Web AI Writing Assistant.

10Web AI Writing Assistant Landing Page

10Web AI Writing Assistant is an AI-powered content writing and optimization tool. It helps with SEO-optimized content suggestions and text adjustments to enhance the quality of the content created. AI assistant also provides 20+ different content templates to clear out writer’s block. Other features include generating blog outlines, automatically generating meta descriptions and titles, automatically fixing SEO and readability errors, fixing paragraph length errors, and fixing sub-heading distribution in articles. 

With regards to plagiarism and AI detectors, you can use 10Web AI Writing Assistant not to churn out content off the internet like ChatGPT, but, instead, to assist you with suggestions that match the written line of thought to unlock more creativity. A win-win! 

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To sum up, AI content detectors have come to control the quality of the content produced by AI-assisted writing tools. It is only proactive to get acquainted with AI detectors as a writer, content marketer, or SEO specialist, as more and more writers are adding AI writing tools to their workflow.

This article has discussed how AI writing detectors work from a non-technical perspective and narrowed down reliable and accurate AI detectors to choose from on the internet.


What's Google's opinion on AI-generated content?

Google claims not to be against AI-generated content. However, the consequence of relying solely on AI-generated content cannot be overlooked. One such consequence is plagiarism. Google will penalize plagiarism as part of quality control, and AI-powered writing tools tend to plagiarism because they churn out content from existing content on the internet.

How to best use AI content generators for better and faster content?

This is more personal. Depending on how you write, you can use AI content generators for research while you draw out valid conclusions from the chunk of text generated by AI. On the other hand, you can generate a piece of content with AI and edit it as you go. We strongly advise the latter cautiously.

How will the development of AI detectors impact the AI content market?

In the grand scheme of evolution, these two sub-niches complement each other. AI content generators create content fast, while AI detectors help content marketers control the quality of the content created by AI-assisted writing tools.
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