The popularization of ChatGPT has generated a lot of discussion, especially about web content writing.
Because nothing can replace a human text, written by a web writer professional, it's useful to know how to recognize content resulting from AI plagiarism.
Let's look at the different AI text detectors available on the market today, how they work, and our solutions to guarantee you 100% authentic texts, without duplicate content or any intervention from ChatGPT or other artificial intelligence.
The tools in this article were selected by our team and are not sponsored. Find out how to sponsor your tool.
What is an AI detector?
AI text detectors are tools, often presented as software, that make it possible to detect whether all or part of a text was created by an artificial intelligence. Today, OpenAI's ChatGPT is one of the most popular AI models, but many other examples exist online.
It's essential to ensure you receive unique texts, without duplicate content or the intervention of any AI during their writing. This is important for SEO optimization, but also to maintain your audience's trust through relevant, tailored, and human articles.
To optimize your SEO, you can order texts written without AI on Redacteur.comOur writers draft your texts without using AI like ChatGPT or other automated writing tools.
Several online tools now allow us to quickly detect whether a text was produced by an artificial intelligence. Here are the main ones.
1. Scribbr: French AI text detector
Scribbr is a French AI text detector. The tool specializes in text analysis. In addition to detecting AI-written content, it offers many services:
- AI text detection
- Plagiarism detection
- Text correction
The AI detector supports four languages: French, English, Spanish, and German. Simply copy/paste the text to be analyzed to determine whether the content was generated by a human or a machine.
Scribbr is free up to 1,200 words per analysis. In the paid version, starting at €14.95 per month, its use is virtually unlimited, including anti-plagiarism analysis, document-level analysis, and many other services.
Price: Free (limited to 1,200 words per detection) or €14.95 per month.
2. Quillbot: an online AI text detector
Quillbot is a free online tool (limited in the free version) to detect AI-written content.
In the paid version, for €8.33 per month, you can detect AI content without limits, in batches of 25,000 words. The technology behind Quillbot is the same as that used by Scribbr. It is therefore as effective as the first anti-AI tool.
Quillbot also offers many writing-related tools: paraphrasing, an online spell checker, anti-plagiarism software, translation…
Price: Free (limited to 1,200 words per detection) or €8.33 per month.
3. Originality.AI: a paid combined AI and plagiarism detector
The tool ofOriginality.AI positions itself as one of the best AI text detectors. It promises a 99% success rate in detecting content generated by artificial intelligence.
This AI detector The paid version is aimed at website owners, web writers, and digital content agencies to test their texts before publication.
According to tests carried out by Originality AI on AI-written texts (ChatGPT, Mistral, Claude, Gemini, etc.), the application's success rate is 99%.
You can try the tool for free for texts up to 750 words. The interface is very visual, with text highlighted in color depending on the detected likelihood of AI generation.
In addition to AI text detection, the tool offers other features:
- Plagiarism checker
- Fact-checking assistance
- Teamwork (multi-user)
- Mass AI content detection via API
- Text readability score
Price: from $30 for 3,000 credits or $12.95 per month for 2,000 monthly credits (1 credit = 100 words)
4. Copyleaks
This is one of the AI detectors for analyzing texts among the easiest to use and most effective.
After analyzing the content submitted via a simple copy-and-paste, the AI text detection tool Copyleaks predicts a probability percentage indicating whether the text was written by a human or by an Artificial Intelligence.
In our test, it perfectly identified AI-generated text and human-written content.
Copyleaks can be tested for free with limited features. Its paid version offers AI text detection in more than 30 languages, including French.
The major advantage of Copyleaks is that it also identifies the model used: ChatGPT, Gemini, or Claude, with 99% accuracy. The tool is available for 2 users.
Finally, it is possible to obtain a custom plan with API integration of the tool.
Price: from $7.99 per month for 1,200 monthly credits (1 credit = 250 words)
5. ZeroGPT: free AI text detector
ZeroGPT is one of the only truly free tools to detect AI-generated content.
Its paid versions simply add usability conveniences, such as the ability to edit reports or perform AI detections in batches.
In our tests, ZeroGPT correctly detected AI-generated content. Bonus: it indicates which artificial intelligence was used.
Price: Free. Paid version from $7.99 per month.
6. Isgen: French online AI text detector
Isgen is a French AI text analysis tool. It can identify content written by ChatGPT, GPT-4, Gemini, Llama, Claude, Mistral or recognize text written by a human. It also identifies content co-created by humans and machines.
Price: Free but limited to 12,000 words per month. €4 per month for 150,000 words, €8 per month for 350,000 words or €14 per month for 600,000 words.
7. Writer: a free AI detector for web pages and plain text
Writer, a company specialized in artificial intelligence serving digital strategies. They offer a free AI text detector up to 5,000 words.
You just need to copy/paste the text or enter the URL of the page you want to check. The text analysis is extremely fast.
The result is displayed as a percentage, indicating the portion of the text that was generated by AI or by a real person.
The tool works for most LLMs like ChatGPT, Gemini or Mistral, but does not indicate which model was used to generate the AI text.
Price: Free but limited, their AI text detection tool is a lead magnet
8. Brandwell AI Checker: an AI detector
BrandWell AI Checker is free online AI text detectors. You can provide the tool with the URL of a page to check, a docx file, or paste directly the text you want to analyze.
The online tool is very simple to use. The result then appears, telling you whether the content is identified as human-written or as text generated by artificial intelligence.
The AI text detector works with most text-generation AIs: ChatGPT, Mistral, Gemini…
Price: Free, but limited in number of characters (2500, or a few hundred words).
9. Proofreading App
Corrector APP is a free online tool. It is one of the AI text detectors offering results as a percentage: when this is below 5%, the software concludes that the content was not generated by artificial intelligence.
Although it doesn’t look like much, with its rather poor interface full of ads, it nevertheless proves to be relatively effective. In our tests, it detected AI-generated content.
It may be more easily fooled by AI-generated content that has been slightly edited.
Price: Free
10. Lucide: French AI content detector
Lucide is another French AI content detector. The displayed score corresponds to a quality rating. 100% is a good score while a lower score indicates the text does not meet standard expectations.
When a text is written by AI, it therefore receives a low score. Available for free up to 1,000 words per detection, its paid version offers additional features (document analysis, etc.).
Price: Free (limited to 1,000 words) or from €9 per month for 100 credits (around 10,000 words).
When should you use an AI detector?
What is the point of using an AI detector? Many use cases arise, particularly in a professional context.
Verify text produced by an external writer
Very soon, content written by artificial intelligences will be penalized by Google, and the efforts made to ensure optimal organic ranking will then be reduced to nothing, even if there is a single fraudulent page on your website.
When you hire an external writer, it is useful to check the uniqueness of the content offered to you and to verify that it was really written by a human.
Using AI text detectors can prove very useful for ensuring the quality of the work carried out by that provider.
Analyze content written by a competitor
Analyzing the texts published on the web by your competitors may be necessary for several reasons.
This thorough review of their content will allow you to determine the care given to their SEO, as well as their level of consideration for their readers.
A competitor offering texts resulting from plagiarism or OpenAI's artificial intelligence to its customers then reveals a shaky marketing strategy and puts its brand image at risk.
How do AI detectors work?
AI text detectors rely on several technologies and examination methods to determine whether online content was generated by an artificial intelligence.
The analysis of each of these tools is largely based on a semantic and syntactic examination of the text in question. This characteristic helps explain why most of these programs produce results in the form of probabilities.
Is an AI detector 100% reliable?
Unfortunately, there currently is no AI text detectors offering 100% reliable content analysis Some texts can, for example, slip under the radar of this type of software.
These are mainly contents that have been revised by a human after being generated by an AI such as OpenAI's. As stated earlier, AI text detectors rely on probabilities and therefore cannot provide exact predictions.
For the writing of this article, we submitted to each of the free tools mentioned a text in English as well as in French produced by Artificial Intelligence.
None of the web tools was able to determine with accuracy and certainty the involvement of ChatGPT in the writing of the content in question. Of course, some of these programs detected a potential presence of AI-written text, but without being able to state it 100%.
Our tip for detecting AI-generated content
Given the scale of the phenomenon caused by ChatGPT, the use of AI text detectors remains a temporary and occasional solution, not fully addressing all the issues raised by the use of Artificial Intelligence in the creation of web content.
Entrusting the writing of your web content to reliable writers therefore remains the preferred solution in the face of the surge in AI-generated content. Our content writing platform, Redacteur.com, offers expert support, as well as access to qualified, passionate, available... But above all, human writers!
The article 10 AI detectors to analyze texts first appeared on Redacteur.com.
