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Scribbr

Scribbr AI detector tool. Website screenshot.

Content Detectors

Multilingual

★★★★★
Price Level:
Free

Scribbr offers a free online tool that can detect if a piece of text was written by an AI like ChatGPT rather than a human. 

Key Features:

  • Free and unlimited usage, no account required.
  • Simple user interface to paste/upload text.
  • Maintains user confidentiality, doesn't store data.
  • Option to integrate with premium plagiarism checking.

Limitations and Considerations:

  • Can struggle with shorter texts (less than 200 words).
     
  • Students - To check that essays and papers don't contain any uncited AI-generated content.
  • Teachers - To verify that assignments were written by the student themselves and not with extensive AI assistance.
  • Writers/Bloggers - To ensure articles and content are fully original before publishing online, which is important for SEO.

Scribbr's AI Detector uses advanced algorithms to identify AI-generated content from tools like ChatGPT and Gemini. 

It analyzes text characteristics and provides a likelihood score for AI authorship. 

The tool works best with longer texts, reliably detects GPT-2 and GPT-3 content, and can identify GPT-4 writing despite this being experimental.

How accurate is Scribbr's AI detector?

Overall score:
5 out of 5 stars (★★★★★).
Our testing showed it is very accurate.
The tool gives a numerical result (score): Yes.
It detected our:
● Human written text as
85% human
(★★★★☆).
● Humanized AI text as
100% AI
(★★★★★).
● Fully AI-generated text as
100% AI
(★★★★★).
Disclaimer: We only test texts written in English. Results may vary.

FAQ

We've tested over 150 AI detectors and have a solid grasp of the market. Using our custom methodology, we ensure all tools are compared fairly. Our testing is unbiased, praising only those we believe in.

The tools on this website are tested using a specific testing method for each category. This ensures they are evaluated fairly and in a way most people would use them.

AI detectors may seem similar at first glance, but they come with different features and are intended for various use cases. Choose a tool that best suits your specific needs for the most accurate results. 

Paid tools are usually more accurate and better for advanced users needing integration and bulk detection. 

Free tools can be hit-or-miss, with usage limits and varying accuracy. 

Therefore, we suggest you check out all of our AI detectors to find the best option for you.

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