Real Test: Can Quillbot Paraphrasing Bypass AI Detection?

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Write by  Emily Watson
2024-12-06 14:52:15 7 min read

Can AI humanizers truly make the AI text undetectable? 

Our serious review blog has tested various tools; some do, but others don't. 

Today, we're testing Quillbot's paraphrasing tool. It's similar to the humanizers, which can rewrite the text in a specific tone and style. So, we are wondering if it can bypass AI detection.

Read on to discover how Quillbot performs. Shall we begin?

QuillBot.com Paraphrasing Tool First Screen

What is the QuillBot Paraphrasing Tool?

QuillBot is an all-in-one online writing platform that enhances and refines writing for various purposes. Users have multiple options within it: rewrite the text, summarize articles, check grammar, detect plagiarism, translate languages, and more. 

Quillbot Home

As a pioneer in writing assistance, Quillbot was introduced to the market before ChatGPT and many other humanizers.

The QuillBot paraphrasing tool, powered by AI, supports multiple languages and offers a range of modes, such as standard, fluency, natural, and more. 

Why Do We Do This Test?

The rise of AI-generated texts has captured widespread interest and intensified the demand for AI humanizers.

We know that AI humanizers can make text content distinct from standard AI patterns to produce articles with a more human touch. Simply, it rewrites your content based on the original information. 

It sounds familiar. That's precisely what Quillbot Paraphrasing Tool does. When paraphrasing text, you are rewriting across various types of content, employing different styles and degrees of modification.

Quillbot Paraphrasing Tool Premium Features

So, we want to know if paraphrasing is also workable for making undetectable text. 

Testing QuillBot Paraphrasing Tool

Methodology Explanation  

What's the whole test process? Let's take a look before we start.

  1. First, we use ChatGPT to get the AI text entirely.

  2. Then, we will rephrase it using the Quillbot Paraphrasing Tool.

  3. After that, five AI detectors will check the AI score.

  4. We employ Grammarly for content quality evaluation. The final step also includes the test on the AI score for the grammar-corrected version of the original AI text.

Testing Text

Topic: Preface for an article on Italian top beaches for ultimate relaxation

Word Count: 109 words

Model: ChatGPT-4

This general writing topic represents a typical style and complexity many of you might encounter.  

Here is what ChatGPT-4 sent back.

 ChatGPT-4 Preface for Italian Top Beaches for Ultimate Relaxation

Humanized by QuillBot Paraphrasing Tool:

The test used QuillBot Paraphrasing's standard mode. We also adjusted the synonyms slider to its maximum to get the most changes.

QuillBot Paraphrasing Tool Output ChatGPT-4 Preface for Italian Top Beaches

Results: QuillBot Paraphrasing Tool’s Efficiency in Bypassing AI Detection

After paraphrasing, we check the AI likelihood of the revised text using the five top AI detectors. One is Quillbot's AI detectors, and the other four are:

  • Originality.ai 

  • ZeroGPT

  • GPTzero 

  • Writer 

 Here are the results:

AI Score After HIX.AI Bypass Humanized 

Tools

AI Score After Undetectable.ai Humanized 

Quillbot 

100% AI

Originality.ai 

100% AI

ZeroGPT

6.49% AI

GPTzero 

100% AI

Writer 

0% AI

What Do the Results Say About QuillBot Paraphrasing Tool’s Ability to Bypass AI Detection?  

The results vary. It is almost undetectable under ZeroGPT and Writer, with 6.49% and 0% AI detection rates, respectively. 

However, Quillbot, Originality, and GPTZero still recognize the text as 100% AI-generated. 

Originality.ai Scoring QuillBot Paraphrasing Tool Initial Output 100 Percent AI

Why is there such a massive difference, you may ask. This may be due to the different detection abilities of AI detectors.

If we look closer, we can find that the phrasing tool primarily swaps words with their synonyms to change the text. It doesn't really shake up the sentence structure or craft sentences anew. It may be able to trick AI detectors with easy detection algorithms. 

However, it doesn't work for those with strict ones, which usually go deeper into the content's structure, style consistency, and more. 

How Good is the Quality of QuillBot Paraphrasing Tool’s Humanized Text?

To assess the quality of text humanized by the QuillBot Paraphrasing Tool, we utilized Grammarly, a well-known tool for evaluating grammar, readability, and overall text quality.

1. Overall Score, Readability & Grammar 

Grammarly provided an overall score for the humanized text: 91 out of 100.  

 Grammarly Pro Scoring QuillBot Paraphrasing Tool Initial Output 91

The score is good, indicating that the text is well-structured and coherent. However, we can still see some minor flaws, such as incorrect verb forms and unnecessary phrases.

In addition, the text uses the same sentences as the original text, and most changes involve simple synonyms rather than structural or stylistic changes.

Well, even if the scores are comparable, we still want to know if the AI ​​score will change if we accept all the suggested changes.

2. Accept Grammarly's Suggestion

We applied all of Grammarly's suggestions. As you can see, the score is now 99/100.  

Grammarly Pro Scoring QuillBot Paraphrasing Tool Output Grammarly Amended Version 99 

3. AI Detection Scores After Improvements:  

We then used the same five detectors to check for AI likelihood.

Why did we test this?

Our previous testing of other humanizers found that grammatical errors could affect the detectors' judgment of AI ratios, which usually leads to a lower AI score. 

AI detection scores before and after Grammarly improvements:

Tools

AI Score After Undetectable.ai Humanized 

After Grammarly Improved  

Quillbot 

100% AI

100% AI

Originality.ai 

100% AI

100% AI

ZeroGPT

6.49% AI

6.54% AI

GPTzero 

100% AI

100% AI

Writer 

0% AI

0% AI

Analysis of the Findings:

The data shows that grammar improvements did not significantly change the AI ​​detection rate. Most tools' scores remained consistent.

To wrap up:

The Quillbot paraphrasing tool may work well as an alternative to AI humanizers with some loose AI detection tools. However, it cannot bypass tools with strict detection algorithms like Quillbot, Originality.ai, etc. 

Originality.ai Scoring QuillBot Output Grammarly Amended Version 100 Percent AI

In addition, Qullbot's paraphrased text (free version) is different from humanized text. The former mainly changes words or phrases but retains the main sentence structure, while the latter completely changes the text to output a brand-new text. 

Both have their pros and cons. How to choose? It depends on your writing needs. 

How User-Friendly is Quillbot Paraphrasing Tool?

Overall, the Quillbot paraphrasing tool is easy to use. The straightforward interface clearly shows texts before and after paraphrasing.

You will have many options for the writing modes, such as Standard, Fluency, and Creativity, among others, with fast response speeds. But they are not free, except for two: Standard and Fluency.

There are some limitations to the free version. For example, you can only input 125 words per paraphrase attempt, which is usually insufficient to test a whole sentence before paying for it. 

QuillBot Paraphrasing Tool Free Version Input Limitation

Quillbot Paraphrasing Tool Pricing

Free Trial:

It has a free version; you can use the paraphrase feature with limitation service:

125 words per request.

Access two different paraphrasing modes.

 QuillBot Pricing

Premium Pricing: 

There is only one paid subscription: Premium Plan. 

Price: USD 8.33 per month when billed annually.

Compared to the free version, it offers more unlimited text and modes with the paraphrasing tool—and other advanced tools.

HIX.AI Bypass Humanizer Pricing Monthly

Alternatives to HIX.AI Bypass 

Want to humanize your text completely rather than paraphrasing it? Let us show you Essaydone, a powerful AI bypasser.

1. What is Essaydone?

Essaydone is an online AI-powered tool offering AI detectors and AI-text humanizing. It can create high-quality, undetectable human-like content.

With an 80% success rate, Essaydone promises to bypass AI detectors—including robust ones like Quillbot, Originality.ai, and Turnitin—but also enhances readability and grammar.  

2. What Makes Essaydone a Strong Alternative?

  • 1000 Free Words, free to test one complete article!

  • 20+ Models: You can customize your writing purposes to get the content to meet your needs, whether for essays, marketing material, and more. 

  • Fewer Grammatical errors: Essaydone aims to produce high-quality output, giving you an excellent score on Grammarly!   

Summary

That's it for the review of the Quillbot Paraphrasing Tool. While it is a powerful writing assistance tool, the paraphrased text is not enough to bypass all AI detectors. So, if you need undetectable text under strict AI detectors, you will need a better solution.

We tested many human-friendly tools, including Undetectable.ai, Stealthwriter, HIX.AI Bypass, and more. You can browse the series we reviewed or stay tuned for the next one. Thanks for reading!