10 Best AI Writing Checkers [AI Content Detector] 2024

ai writing checker

As technology continues to advance, AI-powered tools are becoming increasingly popular in different areas of our lives. One such area is writing, where AI writing checkers have gained prominence. Are you tired of spending hours proofreading and editing your work for grammar and spelling errors? Look no further because we have compiled a list of the best AI writing checkers that can save you time and effort.

In the digital age, effective communication is crucial, and writing plays a significant role in conveying our thoughts and ideas. However, even the most skilled writers make mistakes, whether it's a simple typo or a grammatical error. This is where AI writing checkers come in handy, providing an automated and efficient solution to enhance the quality of your writing.

Using an AI writing checker offers numerous advantages, such as improving grammar and syntax, suggesting alternative word choices, and detecting plagiarism. Whether you are a student, professional writer, or simply someone who wants to improve their writing skills, these tools can be a valuable asset. In this article, we will explore the best AI writing checkers available and how they can help you become a more proficient writer.

1. Winston AI

Winston AI Writing Checkers Overview

Winston AI is gradually becoming an essential AI detection tool for publishers and educational institutions. For good reason, too: it offers two unambiguous and accurate assessments of AI detection: an overall AI detection score and an AI prediction map that highlights passages in your text that are most likely to have been generated by AI, sentence by sentence.

Winston is also capable of scanning lengthy texts and documents into Word, PDF, and even photo formats.

It is among the most dependable AI detectors thanks to its strong features! With their free trial, you can begin using the Winston AI detection tool. However, if you choose to subscribe to their paid plan, you'll have access to their plagiarism detector, which rates any text's readability.


  • 99 percent success rate in detecting
  • Compatible with ChatGPT, encompassing GPT-4
  • highlights phrases that were probably produced by AI
  • scans even books and very large documents!
  • Upload entire Word, PDF, and even scans files into the program.
  • Detecting plagiarism using sources.
  • No cost readability rating.

Pros and Cons

  • 99 percent success rate in detecting
  • Compatible with GPT-4 and ChatGPT
  • Highlights phrases that were probably produced by AI
  • Extra resources such as readability ratings and plagiarism detection.
  • Unable to perform a comprehensive scan of the website
  • Not using an extension for Chrome
  • No comparative analysis


  • Free: Up to 2,000 Words Scan.
  • Growth: $18/month. Up to 80,000 Word Scan.
  • Custom: Open for flexible pricing for large-scale requirements

NB: Annual plan can save 33%

2. Copyleaks

Copyleaks AI Writing Checkers Overview

Copyleaks is a well-known AI-powered plagiarism detector that also functions as an AI content detector. It is highly accurate in identifying content produced by ChatGPT and GPT 3.5 models.

Of all the tools I tested, Copyleaks proved to be the most accurate AI checker. When compared to other tools, Copyleaks' results were remarkable and precise.

Above all, Copyleaks can recognize text from almost any NLP model, including the most recent ChatGPT3. In our test, the stated accuracy of approximately 92% held true. The content's AI generation was accurately detected by the tool.

Be aware that Grammarly might identify AI if you use it to check for AI on Copyleaks. It decreased the human probability in my instance. The fact that Copyleaks is available in a free version is its best feature. You will only receive a certain number of checks, but for those without significant needs, it is plenty.


  • Goes over every NLP model, including GPT3.5.
  • APIs for broad AI content detection.
  • The Chrome Extension is readily available.
  • Sophisticated plagiarism detector.
  • A source code verification tool.
  • LMS Integration.

Pros and Cons

  • A straightforward UI.
  • Detects 12 languages' worth of AI content.
  • An enterprise-level solution that integrates LMS and API.
  • Adaptable prices according to the pages scanned.
  • Lack of a precise grading system for AI-generated content
  • It appears that this tool is easily tricked.


  • Copyleaks AI text detector is Free to use.

3. Writer AI Content Detector

Writer AI Content Detector AI Writing Checkers Overview

Writer is generally recognized for giving businesses and agencies the resources they need to produce content. However, users of Write AI's AI Content Detector have been enjoying it lately.

It is quite simple to use and is free. The fact that there is no registration required is one of the best features! To find out how much of a text is created by humans, simply enter a URL or up to 1500 characters of text to be tested. You will receive an answer in a matter of seconds. Better still, the higher.

Writer also became well-known for its easy integrations and support for numerous third-party platforms, including Contentful, Figma, and Chrome.

I discovered writer.com to be outstanding during my tests. Writer.com produced results that were accurate in comparison to other AI detection tools. It did, however, occasionally also provide inaccurate reports.


  • You can use Writer's AI detection feature without having to register.
  • A dashboard and AI scoring system that are easy to use.
  • Has the ability to identify AI text on a specific page by entering a URL.

Pros and Cons

  • Easy to use interface for beginners.
  • A comprehensive tool offering several AI writing options.
  • The sections generated by AI are not indicated.


  • Free to use. But on the other hand, it supports only up to 1500 characters.

4. GLTR (Giant Language Model Test Room)

GLTR (Giant Language Model Test Room) AI Writing Checkers Overview

Choose GLTR if your goal is to specifically identify text produced by the GPT2 NLP model.

The collaborative team of HarvardNLP and the MIT-IBM Watson AI lab created the free AI text detection tool known as GLTR, or Giant Language Model Test Room. Furthermore, the tool is primarily intended for the detection of automated text generated by language models and has access to the open AI GPT2 model.

By comparing what you type to what GPT-2 could have generated in its place, GLTR determines the probability of every single word in the text that you paste or input.

It emphasizes the sentences in green, yellow, or red as an output, based on their likelihood of being artificial intelligence-generated, from lowest to highest. Therefore, you may be looking at content generated by artificial intelligence if the number of red words is higher than the number of green words.


  • Suitable for automated text detection generated by GPT2.
  • Text highlights help distinguish between content created by AI and content written by humans.
  • Facilitates the input of language model text for forensic analysis.
  • Freely available open-source software on GitHub.

Pros and Cons

  • Excel produced text in GPT 2 with a high level of accuracy.
  • Has the ability to recognize AI in scientific abstracts.
  • Finds AI-generated content in GRE texts with complex wording with accuracy.
  • A fair degree of accuracy
  • A dashboard that is a little complicated.
  • Restricted to text detection using the GP2 NLP model alone.


  • Available for free.

5. Kazan SEO

Kazan SEO AI Writing Checkers Overview

Kazan SEO is an AI text detection tool that was designed specifically for analyzing SEO content. To use the Kazan AI detection tool, all you have to do is register.

In addition to AI content detection, this all-inclusive SEO tool has a ton of other features. There is a text extractor, keyword clustering tool, SERP overlap, and content optimizer.


  • The GPT3 content detection.
  • The ability to scan multiple URLs.
  • Simple SEO instruments.

Pros and Cons

  • Can identify text produced by GPT3.
  • User-friendly, interactive interface for beginners.
  • Compared to other free tools in this category, it is far more accurate.
  • Import multiple URLs to scan content in large quantities.
  • Can only analyze up to 400 words, but requires at least 200 words to produce trustworthy results.
  • Unable to identify content plagiarism
  • A little confusing because there are so many other tools on the same interface.


  • Kazan SEO is free to use.

6. Content At Scale

Content At Scale AI Writing Checkers Overview

Another trustworthy AI detector to evaluate text and determine whether it was created by humans or by AI is Content at Scale. This platform is available for free and offers a plethora of extra features, such as content curation and SEO optimization.

According to Content at Scale's creators, this AI checker is among the first ever created. It can provide more transparent scoring by delving deeper than standard AI content detectors.


  • An API can be requested.
  • Support for multiple languages.
  • Adaptable platform with AI detection and curation capabilities.
  • Accuracy that is dependable.

Pros and Cons

  • Detects content from Bard, GPT4, and ChatGPT.
  • Make effective use of multiple NLP models to identify content generated by AI.
  • Extra tools for optimizing content and SEO services.
  • Allow no more than 2500 characters, or roughly 400 words.
  • Does not specify which portion was written by AI.


  • No charge to use content at scale.

7. Crossplag

Crossplag AI Writing Checkers Overview

Crossplag has long provided an advanced AI text detector, but its primary product is a plagiarism detector.

It's a simple online tool that can reasonably identify text generated by artificial intelligence. Crossplag uses natural language processing and advanced machine learning algorithms to identify the distinctive patterns in AI-generated content.

Moreover, the AI checker shows results on a green to red severity scale, where red denotes artificial intelligence and green represents human-generated content.


  • Working with NLP and machine learning.
  • Optimized for various use cases, such as SEO and education.
  • LTI integrations and insights that are complete.

Pros and Cons

  • A reasonable level of accuracy
  • No cost to use
  • Nothing concerning the NLP models that are supported.
  • Only about 65% of texts based on GPT 3.5 can be accurately identified.


  • Crossplag AI content detector feature is Free. However, one needs to pay for the other features.

8. Sapling.ai

Sapling AI Writing Checkers Overview

One well-known support option for teams that interact with customers is Sapling. However, the platform now has reliable, modern AI detection tools. One of the best free AI text detectors is Sapling. The probability that the text you enter was produced by an AI model like GPT-3.5 or ChatGPT is output.

It's also notable that two distinct approaches are used by both the per-sentence and text detectors to produce an output with a high degree of accuracy.


  • Word, Outlook, Google Docs, and Chrome integration.
  • Identifies material generated by GPT3 and other recent models.
  • Several writing-improvement tools, such as auto-complete, snippets, grammar checkers, and chat support.

Pros and Cons

  • For now, there is no word limit, which is very beneficial for testing.
  • Vowed to soon add additional functionality.
  • Uncomplicated user interface with copy-and-paste functionality.
  • Does not draw attention to the text's AI-written passages.
  • Only precise text longer than fifty words.


  • Free – Support up to 2500 characters
  • Pro Plan – $25 per month.
  • Enterprise Plan – Available on request.

9. ZeroGPT

ZeroGPT AI Writing Checkers Overview

One of the most popular and cost-free AI text detectors available is ZeroGPT.

Remember that it is not the same as GPTZero. The AI startup ZeroGPT provides a range of AI tools, including the ability to communicate with ChatGPT directly via Telegram or WhatsApp.

This AI text detection tool locates the source of your text using cutting-edge DeepAnalyse Technology. The authors have examined millions of texts and articles that include both human- and AI-written content. They consequently created the incredibly precise ZeroGPT algorithm, which has a 98% accuracy rate in identifying the source of text.


  • Recognizes text written by GPT-4
  • 98% of the time, the AI content detection is accurate.
  • Compatible with numerous languages
  • Having access to more AI tools
  • Totally free to use

Pros and Cons

  • It finds content written by AI by utilizing DeepAnalyse technology.
  • Identifies AI text output across all languages
  • The artificial intelligence text detector can be cited.
  • Detects AI content with ease, but displays inaccurate results for human content.
  • Fails to identify plagiarism


  • Free to use.
  • You can also get private API access to ZeroGPT by contacting its team via email.

10. Originality.ai

Originality AI Writing Checkers Overview

Lastly, Originality.ai, our personal favorite. This tool is undoubtedly the best at determining whether content is created by AI or is human-written, with claims of accuracy as high as 99%.

It can identify AI-generated text from all of the main NLP models, including GPT-3, GPT-2, GPT-NEO, and GPT-J, because of its strength and adaptability. They claim on their website that it can even identify AI text generated by the GPT 3.5 (DaVinci-003) model.

Even with manually written content, I observed AI that detected originality. Therefore, I wouldn't fully classify it as “accurate,” even though it claims to be 99% accurate. Alternatively, you can use it in conjunction with various other AI detectors to validate the content.


  • Support for every NLP model.
  • Plagiarism checker and AI content detector
  • Assist Several Team Members
  • A pipeline feature called Full Site scan.
  • There are available integrations and APIs.
  • Economical

Pros and Cons

  • Incorporates a Chrome addon to enhance the workflow even more.
  • Contains the ability to identify almost all NLP-generated model content.
  • Incorporates a Chrome addon to enhance the workflow even more.
  • Not available for free
  • Doesn't indicate whether the specific content section is copied or created by AI
  • Only supports the use of English


  • For every 100 words checked, Originality.ai charges $0.01 in fees.
  • The amount of people who can browse the website, use its features, and access it in its entirety is unlimited.

Frequently Asked Questions FAQs)

Q. Which is the most reliable AI detector?

Copyleaks has demonstrated that it can identify AI written content with an accuracy of about 92%, despite the fact that no tool is perfect. You can give the tool a try because it's free to use!

Q. What is the Best AI Content Detector?

Originality.ai is our best AI content detector; it's a vital tool for content operations because it can identify plagiarism and identify AI-generated content with ease.

Q. Should I use an AI checker tool?

Google has made it very evident on numerous times that it believes content created by AI to be of poor quality. As a result, content created solely with AI violates Google's webmaster guidelines. Google's Search Advocate, John Mueller, has reiterated that content created by AI is spam. It is wise to verify the originality of your content before posting it on your website.

Q. What AI detection tools should I use?

Depending on what you need. There is free and paid AI text detectors out there. However, I believe originality.ai is the best tool available if accuracy is your top priority. Scale and sapling.ai offer valuable content if you are looking for a free tool. While the latter is dedicated to AI text detection for all NLP-based models, the former is more focused on accuracy.

Q. Can Google detect AI content?

AI content is probably detectable by Google. AI content is clearly stated to be spam and of low quality in its webmaster guidelines. So, it's reasonable to presume that it must have included systems for identifying AI material.

Q. How AI Content Detectors Work?

The NLP models used by AI writing tools to generate text are also used by AI content detectors. Essentially, their training involves identifying the innate patterns and phrasing of AI content. Based on the possibility that Google will view the content, these tools then assign a rating to it.

Final Thoughts

In conclusion, AI writing checkers are invaluable tools for anyone looking to improve their writing skills. The 10 tools mentioned above, are among the top AI writing checkers available, each offering unique features to enhance your writing style, grammar, and overall communication. By utilizing these tools, you can become a more proficient writer and effectively convey your ideas to the world.

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