5 Tools to Detect AI-Generated Content

We research and discuss many ways to use artificial intelligence more effectively in our SEO work, both on the Zeo Blog and in Zeo Talks videos. In this article, I wanted to list a few tools that can help you detect content generated by artificial intelligence (Gemini, ChatGPT, or Claude).

To briefly summarize a few important points about articles generated by ChatGPT:

Understanding human behavior: Although AI can produce large amounts of content within seconds, it can sometimes lack an emotional connection. This can make it difficult to achieve the exact tone you want in your content.

The latest ideas: AI generates content based on previously collected data. As a result, it may not always be able to provide you with the newest ideas. It works with data gathered from the internet and the information provided to it.

When testing the tools included in this article, it is important to remember that there is always a margin of error, so relying entirely on tool results would not be the best approach. These tools may also produce very different results across languages. You can run Human + AI checks as well, so your analysis is not limited only to content generated by LLMs.

Below, you can find a list of AI content detection tools. Rather than including every site I came across, I selected the ones I genuinely found useful.

1. Copyleaks

Test page: https://copyleaks.com/ai-detector

You can use it for free for up to 25,000 characters. If you want, you can also use it to test random AI-generated content from tools such as Gemini. It also has a Chrome extension, and you can upload documents through Google Docs. I added this article, and it showed me a result of 0% AI-generated content:

You can also clearly identify an AI-generated article:

2. Originality.ai

Test page: https://originality.ai/

You can test whether articles of up to 2,000 words were written by AI three times a day. To check content in languages other than English, you need to create an account.

3. Winston AI

Test page: https://gowinston.ai/ai-content-detector/

You can run tests of up to 2,000 words for free for 14 days. I really liked the interface, and especially when you combine AI detection with the fact checker, you can also improve the accuracy of your articles.

4. turnitin

Test page: https://www.turnitindetector.ai/

You can use this tool for free to see which parts of a text it identifies as AI-written. I did not find the sections it flagged as AI particularly accurate, but you can test it for yourself. It also draws on other platforms such as Writer when calculating its score:

5. Scribbr

Test page: https://www.scribbr.com/ai-detector/

With this free tool, you can test AI-generated content not only in English but also in Turkish and analyze what percentage of an article may be AI-generated. You can also see which paragraphs may have been generated by AI:

You can use these tools not only for your own content but also when analyzing your competitors’ content. Your competitors may be using fully AI-generated content or Human + AI content in certain sections of their sites. As you can see in the Washington Post example, they indicate in the interface when artificial intelligence has been used to create content:

You can use these tools to identify how the FAQs used by your competitors were created. You can even track the performance of their relevant pages based on these results and build action plans accordingly.

Will Google Devalue AI-Generated Content or Take Manual Action?

John Mueller from Google said that automatically generated AI content is considered spam under the webmaster guidelines. In other words, it may be viewed as lowering the quality of these sites and can also result in a penalty.

The Web Spam team may even apply a manual action to relevant sites in such cases. Automatically generated content had already been considered a guideline violation in the past. In your SEO efforts, you can also use Ahrefs’ free AI Content Level metric if you wish:

Finally, we should keep in mind that these tools do not provide definitive results and can sometimes be wrong. Over time, the links on these pages may become outdated or the tools may be updated. If you let me know, I will update the links in the article at the first opportunity :)