Artificial Intelligence

Can Copyleaks detect Quillbot? Facts You Should Know!

06/02/2025
by Zoran Trimmel
Can Copyleaks detect Quillbot​? Facts You Should Know!
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You just pasted the edited text from QuillBot into Copyleaks, and your heart skipped a beat when it showed 0% AI content detected. “Oh, so it was bypassed?, you wonder. And can Copyleaks detect QuillBot?

If you’re curious about the relationship between these two tools, this article is for you. Techdictionary will help you explore how Copyleaks works, how QuillBot processes text, and, more importantly, how you can use these two tools intelligently and appropriately and still maintain originality in every word. Let’s find out!

Can Copyleaks Detect QuillBot?

Yes, Copyleaks is capable of detecting texts that have been modified by QuillBot. It uses advanced algorithms that go beyond simple keyword matching. It analyzes sentence structure, word choice, and overall text patterns to identify similarities, even if the text has been reworded. This means that if QuillBot simply swaps out a few synonyms or makes minor adjustments, Copyleaks will likely flag the content as similar to the source.

Can Copyleaks Detect QuillBot?

Can Copyleaks Detect QuillBot?

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We Tested With 4 Modes of QuillBot: Evidence of Copyleaks Detecting Quillbot 

Now, to really get a feel for whether Copyleaks can capture content that’s been through QuillBot’s paraphrasing, TechDictionary decided to run a little test. Here’s how we set it up:

Step 1: First, ask ChatGPT to write a paragraph on a random topic.

Step 2: Then, use QuillBot Premium to paraphrase it in four popular modes: Standard, Formal, Academic, and Creative.

Step 3: Finally, each of these rewritten versions is sent to Copyleaks to see how it responds.

Ready to see the results? Let’s get started!

Use Quillbot to paraphrase text

Use Quillbot to paraphrase text

Case #1: Standard Mode

Let’s start with Standard Mode, QuillBot’s go-to setting that lightly rewords the text while keeping the original meaning.

And the results? Copyleaks found that 0% of AI content was detected, which is surprising. Even simple paraphrasing can miss detection in some cases.

QuillBot Standard Mode can bypass Copyleaks

QuillBot Standard Mode can bypass Copyleaks

Case #2: Formal Mode

When switched to Formal Mode, Copyleaks flagged the text as 100% AI. Although the language sounded more polished, it still revealed clear AI traits that Copyleaks easily caught.

Can Copyleaks Detect Quillbot In Formal Mode?

Can Copyleaks Detect Quillbot In Formal Mode?

Case #3: Academic Mode 

Then we decided to get a bit more scholarly with QuillBot’s Academic Mode, which rephrases text in a more technical, research-style tone. Copyleaks once again flagged it as 100% AI. Even with formal academic wording, the AI roots didn’t slip past detection.

Can Copyleaks Detect Quillbot In Academic Mode?

Can Copyleaks Detect Quillbot In Academic Mode?

Case #4: Creative Mode 

And now for the mode that often promises the most significant transformation: QuillBot’s Creative Mode. It takes more liberties with phrasing for a unique, human-like tone, and it worked. Copyleaks detected 0% AI content, suggesting this mode can effectively bypass detection in some cases.

QuillBot Creative Mode can bypass Copyleaks

QuillBot Creative Mode can bypass Copyleaks

 

 

How does QuillBot paraphrase text?

To understand how Copyleaks tries to catch QuillBot, we first need to understand how QuillBot reinterprets. The tool uses advanced Natural Language Processing (NLP) to understand your text and transform it. It does this in a few ways:

  • Paraphrase Mode: This is the key. It has modes like Standard, Fluent, Formal, Simple, Creative, Academic, Expanded, Shortened, and Human. Each mode applies to different purposes and levels.
  • Change vocabulary: Helps replace words with synonyms. You can also control the amount of vocabulary you want to change by using the “Synonym Slider”.
  • Change sentence structure: It rearranges phrases and clauses and can modify the overall sentence structure to create a new flow.
  • Maintain meaning: While paraphrasing, QuillBot’s AI tries to keep the original meaning of the text intact

How Does Copyleaks Detect Plagiarism?

Copyleaks has built a solid reputation for plagiarism detection, and their approach is quite comprehensive. Here’s what TechDictionary understands about the plagiarism detection process:

  • Massive database comparison: When you submit a text, Copyleaks scans it against a massive database (60 trillion web pages, over 16,000 open-access journals, and millions of internal documents).
  • Advanced AI algorithms: It doesn’t just look for exact matches. Copyleaks uses sophisticated AI, Natural Language Processing (NLP), and machine learning to analyze text.
  • “Strike with fire” approach: Copyleaks focuses on identifying features of human text. If these typical human patterns are absent or broken, it can flag the text.
  • Generate reports: After scanning, Copyleaks provides detailed reports that show the percentage of content that is similar and highlights the sources of these matches.

Additionally, Copyleaks supports multiple formats like Word, PDF, HTML and can scan for plagiarism in over 30 languages. This layered detection helps catch everything from direct copying to certain types of paraphrased content.

Strategies for Using QuillBot Ethically and Reducing Detection Risk

Using tools like QuillBot ethically is super important, especially for school or professional work. Here’s how you can use QuillBot responsibly and lower your chances of getting flagged:

Fact-check:

If you are using QuillBot to paraphrase information, triple-check to ensure the paraphrased version does not inadvertently distort the truth. For an additional layer of potential plagiarism checking and AI detection in your final draft, a comprehensive tool like Originality AI can be a useful resource.

Originality AI Fact-Checker feature 

Originality AI Fact-Checker feature

 

 

You may be interested in: Originality AI vs Copyleaks: Can They Detect Paraphrased AI?

Cite Source:

Always, always cite your sources! Even if you’ve rephrased or summarized, you need to acknowledge where the information came from. This shows respect for the original author’s hard work and helps you avoid plagiarism. Tools like Paperpal can be really helpful here, making sure your academic citations are legit and follow all the right rules.

Paperpal’s cite source feature

Paperpal’s cite source feature

 

 

You may be interested in: Paperpal vs QuillBot: Which AI Writing is the Best for Academics in 2025?

Re-check AI Detection:

After editing with QuillBot, it’s smart to run your text through a trusted AI detector. AI Detection tools like Winston AI are great for academic or professional writing; they scan for signs of AI through tone, structure, and wording. Think of it as a final safety check before you hit “submit.

Winston AI Detection Feature

Winston AI Detection Feature

 

 

You may be interested in: Winston AI vs. Originality AI: Which AI Detection Tool is Better?

Ethical Considerations and Maintaining Academic Integrity While Using Quillbot

In today’s work life, interpretation tools like QuillBot are no longer mere word processors; they are tools that assist in refining your text. The ethical boundary is not whether you use tools, but how you use them.

The key is to use their power to enhance your ideas, helping you produce work that is both linguistically polished and authentically your own.

You may be interested in: Is Using AI Considered Plagiarism? Find Out the Hidden Facts

Wrap it up

So, can Copyleaks detect QuillBot? Yes, but as we’ve seen, highly sophisticated paraphrasing techniques or AI humanization can confuse it. The real point from TechDictionary isn’t to find the perfect way to “beat” the systems. It’s to understand how these tools work so you can use them, like QuillBot, as a powerful assistant to enhance your unique thinking and writing, always ethically and with credit.

What do you think about how AI detection tools are holding up? Share your insights in the comments below!

FAQs


1. Can you get caught plagiarizing using QuillBot?

Yes, absolutely. If you use QuillBot to rephrase someone else’s work and don’t cite the source, or if the paraphrase is still too close to the original structure, it’s plagiarism, and tools like Turnitin or Copyleak can flag it.

2. Can CopyLeaks detect paraphrasing?

Yes, Copyleaks can detect content paraphrased by QuillBot. It uses advanced algorithms to analyze sentence structure and vocabulary, looking for similarities with sources in its vast database.

3. Is there a way to detect QuillBot?

Yes, AI detection tools like Copyleaks, Originality AI, and Winston AI can spot AI-generated patterns, even from QuillBot.

4. Do professors know if you use QuillBot?

Yes, professors can detect if you use QuillBot, especially if they are using plagiarism detection software like Turnitin or Winston AI.

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Zoran Trimmel
Zoran Trimmel
Zoran Trimmel is an AI specialist who simplifies complex technical concepts. He evaluates emerging AI platforms for our technology website and produces insightful articles on AI and tech tools, thanks to his attention to detail and effective communication skills.
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