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Best AI Detection Tools

6 Best AI Detection Tools

Google can detect your AI. Can you?

Using one of these AI detection tools can help you grasp how “human-like” your AI-generated content is and what edits you can make before publishing and risking Google detecting your AI content.

Here are the best tools for AI detection today.

Best Free AI Detector

ContentatScale Logo Small

Content at Scale

  • Tied for highest accuracy in our test of all detectors
  • Detector is part of our favorite AI writing tool
  • Limited to checking 2,500 characters (approx. 500 words)
  • Works with GPT-3

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Best Paid AI Detector

Originality AI Logo

Originality.ai

  • Tied for highest accuracy in our test of all detectors
  • Comes with plagiarism checker
  • No character limits on checks
  • Works with GPT-3

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How Does Google Detect AI Content Video

1. Content at Scale

Best free AI detector & part of our favorite AI writing tool

Content at Scale Website Banner

The new feature added to our favorite AI writer, Content at Scale's AI Detector is topping our list.

We love this detector because it has the ability to detect when content comes from GPT-3 or any other AI model within moments.

You can generate your content using Content at Scale’s AI writing service and check for its human-like quality using the built-in detector before posting. It gives you a simple score out of 100 on how human the content is and how likely it is to be detected by Google as artificial.

An added bonus: most of the Content at Scale content ran through it earns a high “Human Content Score,” so you have to do less work on editing it.

2. Originality.AI

Best paid AI detector

Originality.AI Website Banner

Checking for both AI and plagiarism, Originality.AI puts the user in control of their content’s originality.

Since AI writers largely pull their information directly from other posts on the internet, the risk of plagiarism can be pretty high. With Originality.AI, not only can site owners gain insight into how human-like their content is, but they can also see how original the content itself is.

By doing both at the same time, site owners and content creators can save time and money and mitigate the risk of Google detecting any machine-created content.

3. Hugging Face

Hugging Face Website Banner
The “home of machine learning,” HuggingFace is used by over 5,000 organizations, including Grammarly and Google AI.

Though it’s an open-source AI community where folks can share ideas, the site also has a free AI detection tool.

All a user needs to do is copy/paste their content into the box, and it will show the user where it ranks on a “fake” to “real” scale.

Results get more accurate the more content the tool is fed, so this one may be better for folks who are testing longer AI-written content.

4. GLTR

GLTR Website Banner

Giant Language Model Test Room (GLTR for short) is a detection tool that uses “a suite of baseline statistical methods that can detect generation artifacts across common sampling schemes.”

This was created by a team from MIT-IBM Watson AI lab and HarvardNLP using the GPT-2 language model to differentiate between real and AI-created content.

GLTR essentially color-codes each word in a post to detect how likely that word is to appear in that position in a sentence.

For instance, a word that ranks within the most likely words is highlighted in green (top 10), yellow (top 100), red (top 1,000), and the rest of the words in purple.

5. Kazan SEO

Kazan SEO Website Banner

For an all-in-one SEO AI detection tool, check out Kazan SEO.

This neat toolkit has multiple features outside of AI detection, including a content generator, a tool for discovering and researching keywords, URL text extraction for SEO analysis, and co-relational content optimization.

If you need more than just AI detection, we recommend Kazan SEO for its wide variety of SEO tools.

6. Writer

Writer Website Banner

With a straightforward name, Writer is a leader in… well, written content creation.

It also has an easy-to-use AI content detector to make it easy for users to check their AI-generated content before sending it out into the world.

Similarly to Content at Scale’s AI detector, Writer’s shows a detection score in percentage.

If you need help, they have a dedicated customer support team as well.

How Do AI Detection Tools Work?

How Do AI Detection Tools Work

AI detection tools work by using a language model similar to the ones used by Google to predict likelihood of certain words and phrases in content. Using this judgement, it is able to give users a score on how “human-like” the content will appear in Google’s eyes.

These tools can help site owners who publish content use AI writers to produce a higher volume of content without risking penalization from Google.

Are AI Detection Tools Worth It?

Since so many AI detection tools are available for free, they are absolutely worth it to ensure that any AI content created will pass under Google’s radar and have the opportunity to rank high in search.

Google and AI-Generated Content

Google and AI Generated Content

The reason for all of these detection tools is Google’s relationship with AI.

It’s complicated.

Technically, AI-generated content has always gone against Google’s Webmaster guidelines. With all of the new technology, folks have been wondering if Google has maintained its stance on the new way to create content.

In a recent SEO office hours, Google’s Search Advocate John Mueller reiterated that AI writing tools are considered AI-generated content and considered spam, which makes them a no-go when it comes to following Google’s rules.

They haven’t really specified how they can tell whether content is AI or not, but it’s better to err on the side of caution and use a detector before hitting “publish.”

Best Free AI Detector

ContentatScale Logo Small

Content at Scale

  • Tied for highest accuracy in our test of all detectors
  • Detector is part of our favorite AI writing tool
  • Limited to checking 2,500 characters (approx. 500 words)
  • Works with GPT-3

Learn More

Best Paid AI Detector

Originality AI Logo

Originality.ai

  • Tied for highest accuracy in our test of all detectors
  • Comes with plagiarism checker
  • No character limits on checks
  • Works with GPT-3

Learn More

Frequently Asked Questions

What is the best free AI detection tool?

Content at Scale is the best free AI detection tool.

Should I use an AI detection tool?

Yes, you should use an AI detection tool any time you post AI-generated content.

Can AI writing be detected?

Yes, AI writing can be detected by Google.

Will I get penalized on Google for AI-generated content?

Yes, you will get penalized on Google for AI-generated content.