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As an online business owner, I have already personally fired three writers for lying about using an AI writing software and trying to pass it as their own work.

According to Salesforce’s most recent survey, 45% of US population is now utilizing some form of generative AI. This affects all of us in whichever industry we work for. Here are a few examples.

  • HR sorting through AI written resumes.
  • College admission teams reviewing applications.
  • Academic cheating.
  • Mass propaganda, fake news, and fake social media content.

Which is why you need the best AI content detector to help you determine originality, report accuracy transparency, and that can efficiently pass content quickly.

Best Overall


Full Review

  • Accurate Detection (passed my test!)
  • I loved the dashboard and experience.
  • Affordable.
great free option

Content At Scale

Full Review

  • Easy-to-Use
  • Accurate DetectionF
  • Free with limits
User friendly

Writer AI

Full Review

  • User Friendly
  • Accurate Detection
  • Free with limits

I personally submitted human and AI prompts into each of these detectors on my hunt to find the most accurate on the market. Let’s see how they performed. What’s crazy is MOST of them passed eight months ago, and now several failed after the release of GPT4 models.

What is the Best AI Content Detector?

In order to test out the accuracy, I asked ChatGPT to create an essay for me on the decline and fall of the Roman Empire. I also ran my 100% human blog content through the platforms to look for false positives. Here are the top platforms I tested on the market!

1. Originality.ai

Originality.ai is a two-for-one tool offering both plagiarism checking and AI content detection.

It’s designed for publishers, content agencies, and website buyers who want to ensure the content they’re about to publish, or purchase is original. This is very helpful as ChatGPT and alternatives are changing the way people write.

Originality Accuracy & Experience

I found the dashboard experience very straightforward and easy to use. Take a look at how easy it is to scan.

Test 1: How Well Did It Detect My 100% AI Written Content?

When I entered by Roman Empire ChatGPT essay, here’s what I got:

Results: Passed (99% AI and 1% original)

These results were seriously accurate.

Test 2: How Well Did It Detect My 100% Human Written Content?

Next, I dropped in an article I wrote for this blog, “Best AI Art Generators“. For this article, I did not use any AI writers.

Results: PASSED (100% original, 0% AI).

Originality.ai Benefits & Shortcomings:

  • Super accurate: This tool is 99% accurate on multiple models, including the latest GPT-4 models.
  • You can choose to copy & paste, scan a file, or paste a URL for different types of content.
  • Full site scan: In seconds, you can detect AI content on every page under one URL.
  • It highlights the content with different colors to tell you which sentences were generated by AI, and which ones were most likely human content.
  • Checking for AI and plagiarism simultaneously took a long time for a standard-length article.
  • Their data set to check for accuracy is very small (only looked at 250 ChatGPT prompts).

Originality AI Pricing: 

You now have the option between a one-time payment for 3,000 credits (300,000 words) for $30, or subscribe to a monthly subscription for $15/month.

Originality AI Final Thoughts

Originality passed both the accuracy test, and I really found the highlighting feature to be a great added benefit.

And with support for teams, full site scans, and a plagiarism checker, it’s a good fit for bigger businesses and content publishers.

2. Copyleaks AI Content Detector

Copyleaks is an advanced AI content detector that claims to detect content from most AI writing tools, including ChatGPT. What’s unique about their platform, is they also check the originality of images (something I have never seen before!).

While it all sounded great at first, the experience left much to be desired….

CopyLeaks Accuracy & Dashboard Experience

I found their dashboard annoyingly difficult to use. It’s easy to submit a scan, but for AI detection you have to check a small checkbox.

Then, when you get your results, I couldn’t find where the AI detection score was, just the plagiarism score.

Test 1: How Well Did It Detect My 100% AI Written Content?

Honestly, it sucked. Not only did it not tell me where the AI content was, but I had to download a report to find it.

Results: Technically, it passed, but it didn’t give me any information.

Copyleaks Benefits & Shortcomings

  • LMS integration: LMS stands for Learning Management System, which schools use to provide learning content, collect essays, and grade assignments. Teachers can scan essays with Copyleaks from within their native LMS platform.
  • They had a great plagiarism tool, that finds similar references from the web.
  • It detects AI images as well as text, a new tool I’ve never seen before. But it said I never “submitted” a photo and it failed. Zero points for their user experience.
  • It doesn’t give you a percentage, just a simple “AI-generated” or “Human-written” result.
  • It took a lot longer than the other platforms I’ve tested.

Pricing: Copyleaks’ AI detection tool allows you to run five pages for free during a trial run. One page= 250 words. So $25 a month gives you 62,000 words per month, making it more expensive than its competitors.

Copyleaks Verdict

If you’re going to use Copyleaks, stick to it as a plagiarism tool. For AI detection, it just missed the mark in so many ways. While it does process images, my gut tells me not to trust this platform.

3. Content at Scale AI Detector

Content at Scale is an AI content platform that claims that its AI writer can pass any AI detection test on the market. Which is why they created their own AI content detection tool to prove it.

It checks for all the GPT-4 language models, including ChatGPT and Google’s Bard with a reported 98% industry accuracy.

Content At Scale Accuracy & User Experience

Overall, it was a partially accurate detection tool that was user-friendly. Just copy and paste your work into the text box.

Test: Roman Empire ChatGPT Essay

It highlights areas based on the probability that the words were AI-generated, but unfortunately, it just could not tell.

Content At Scale Benefits & Shortcomings:

  • Simple. Just paste the content into the box and go.
  • It’s completely free to use. You don’t even need to create an account or submit your email.
  • There’s a 25,000-character limit, so it will only scan the first part of a long piece of content.
  • It didn’t give us 100% accurate results, but it demonstrated that it likely has some AI content in it.
  • They have an AI image detector, but it wouldn’t let me download two images (one PNG one JPEG), so I gave up.

Content At Scale Verdict

If you need a quick AI detection scanner to use for free for just one project, then this would work as a quick initial test. But I wouldn’t go to it for full AI detection needs (like if you’re an educator or editor).

4. Writer AI Content Detector

Like Content at Scale, Writer is an AI writing platform that also provides an AI detector to prove the quality of its own AI writing. It’s very similar to Content At Scale’s

Writer’s Accuracy and Experience

Their dashboard is very easy to use and builder basic, you’re not going to get any bells and whistles from them.

You can choose to upload a URL or just copy and paste your content directly into their website.

Test: Roman Empire Prompt….. Results: TOTALLY FAILED !!!! Yikes.

Writer’s Benefits & Shortcomings

This was super easy to use. Just add the text and hit “analyze”.

  • It totally failed my simple ChatGPT test. I can’t imagine what it would do to more upscale AI writers like Jasper.
  • You can only enter up to 1500 words into the text box for checking. Any more than that, and you’ll get hit with an error message. It’s time-consuming to go back and delete words until you hit the word count. On the other hand, you know that the tool is checking the entire sample, unlike Content at Scale.

Pricing: This tool is available for free on the Writer website.

Writer’s AI Content Detector Verdict

What’s crazy is this totally passed my test about eight months ago. I’m not sure if it was just good enough for GPT-3, and then totally failed the GPT4 models. But I wouldn’t trust it.


GLTR (also known as “Glitter”) stands for Giant Language Model Test Room. It’s a free demo created by researchers from IBM and Harvard in 2019 that gives you a detailed analysis of your text to determine whether it’s AI content or not.

In the beginning, they even give you a breakdown of how AI writers work in the first place, which is just so fascinating to learn.

However, they have NOT updated it since 2019 with GPT2. SO probably not very reliable in any way, but I wanted to see what happened.

GLTR Accuracy and Experience

If I thought Writer’s AI detector was “builder-basic”, then this is like original Nintendo status user-experience.

What’s confusing, is that green means it’s AI-generated text and red or purple means human text. We usually like it the opposite way (red bad, green good).

Results: Mostly green, meaning AI -generated.

  • Visual: The tool gives you an at-a-glance, detailed analysis of the text using a color scheme that makes it easy to understand the results.
  • Detailed numbers: You can view graphs of the results and get detailed statistics for each word in the text.
  • The tool is designed for GPT-2, so it’s probably not well-suited for testing content from GPT-3 and ChatGPT. However, it’s an interesting alternative tool to try if you want to get more data about a piece of text.
  • The tool doesn’t tell you clearly whether something is AI-generated text or not; it gives you the data and asks you to draw your own conclusion.

Pricing: This tool is available for free on the GLTR website.

GLTR Verdict

GLTR, while not as useful as the other tools, shows you the results from a different angle (and gives you a lot more data). So it’s worth a try, even if it’s not your go-to AI-checking tool.

2. Winston AI

Winston AI has been on my radar for a while, mainly because they boast the capability to pass the newest language models that all the big AI writing companies are using.

They report that their software has been able to detect 99.6% of AI-generated content, including those written by ChatGPT, which is what most students are using nowadays as it is affordable and easy to use.

Let’s see how it truly stacks up shall we?

Winston AI Accuracy and Experience

They had a very nice dashboard experience, and when I submitted my test it was one of the fastest tools I’ve used on the market.

Results: PASSED (2% human, 98% AI).

Winston AI Benefits and Shortcomings

  • It gave me accurate results in record speed. I couldn’t believe how fast it was.
  • They have the option for a plagiarism checker as well, which is great for schools and educators.
  • It gives you both a prediction score AND the highlighted text area, which is really useful.
  • It will be integrating with some big names like Blackboard and Zapier.
  • Unfortunately, they did not have a place to submit URL’s, which is nice for website editors.

Winston AI Pricing: They’re pretty on par with their competitors, with $30/month getting your 200,000 words a month.

Winston AI Verdict

Overall, Winston was a great AI Detector. It accurately found my AI-generated text, had a great user experience, and offers some useful integrations. I would definitely recommend them.

What is an AI Content Detector?

An AI content detector scans your content to determine if it’s been generated by an AI writing tool and, if so, how much of it is AI versus human-written.

Right now, we’re truly living in a grey area with AI content. Is it plagiarism? Not technically, because it’s generating unique content. Is it spam? Hard to tell as well, as Google says auto-generated text is spam, but content that’s generated and then human-edited is not the same.

Whatever the verdict, I highly doubt AI writers are going anywhere, and there are going to be lots of scenarios where people need to know if the content was written by a person or a machine.

How Does A Content Detector Work?

If AI-generated content is supposed to sound like a human, how can you tell the man from the machine?

It turns out that AI text generators tend to follow the same predictable patterns when forming sentences. Of course, as AI models get more advanced, these patterns evolve. But at the end of the day, human writing is always more random and unpredictable than what AI writers can produce.

The best AI content detection tools study the model’s popular AI writers use—including GPT-2, GPT-3, and ChatGPT—and figure out the predictable patterns they use to craft sentences. Then they apply those models to text to see if it follows the AI patterns or breaks away from them enough to be considered human-written.

Some tools simply state that a piece of content is “AI” or “human” without any other context. But others will give you a % score to show how much of the text is AI-generated. (Which is a lot more helpful, if you ask me.)

Now, let’s take a look at the most popular AI detection tools available today to see how they stack up.

Benefits of Using the Best AI Content Detection Platform

If you’re a teacher, site owner, publisher, etc, then you’re going to need to know how much of your team’s written content is original work. Here’s a few reasons why you may need one:

  • Protecting AI-Generated Content from Google: Many writers use AI to help generate content, but they still edit the rough draft to ensure it’s original enough. Still, it helps to run the content through a detector to make sure it won’t ring any alarm bells on Google’s side. The last thing you want to do is be penalized.
  • Catch AI-Generated Content Before Publishing: Book publishers, digital publishers, and content agencies rely on many different writers and freelancers to create the huge stream of content they publish every year. AI detection tools help these companies ensure that each submission is original content (and won’t get the company in trouble).
  • Identify Unoriginal Student Work: In academia, plagiarism and AI-generated papers are becoming a bigger problem now that these tools and resources are readily available online. Teachers wanting to protect the academic integrity of their classes can use AI content detection to make sure each student is doing the work of researching by hand and writing in their own words.

Frequently Asked Questions (FAQs)

How can I detect AI-written content?

You can use an AI detection tool like Originality.ai or Content at Scale’s free AI detector. These tools even tell you what percentage of the content is generated by AI.

Can Google detect AI-generated text?

Since AI detection tools are becoming mainstream, it’s safe to assume that Google has its own way of determining AI-generated content. They’ve said that if they determine a piece of content to be AI-generated, they will penalize it. If you’re using an AI writing tool or AI marketing tool to help generate content, you’ll want to edit them, so they’re accurate, original, valuable, and in your own voice. You can use an AI content detector to make sure it passes as the original.

Will Google penalize my AI-generated content in search results?

This is a toss-up and I think the world is awaiting what will happen. Google goes against auto-generated content. However, if you can edit your AI-generated content to ensure it’s accurate, original, valuable, and in your own voice, it’ll be more likely to pass as original content. Especially if you just use it to create a quick foundation, but then add in stats, unique perspectives, etc.

Is there an AI Content Detector tool that can recognize content created by ChatGPT?

Yes! Originality.ai, Content at Scale’s AI Detector, Writer’s AI Detector, and Copyleaks all support ChatGPT.

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