Best Undetectable AI Tools of 2024

Undetectable AI software has been a rapidly changing field since the advent of its creation. Today, the field has never been more competitive and demanded.

The best undetectable AI tools of 2024 are StealthGPT, Stealthwriter, HIX Bypass, BypassGPT, and Humbot. In this article, we’ll tell you more about them.

Table of Contents

• Introduction

• Factors to Consider When Choosing Undetectable AI Services

• Summary of Our Findings

• Best 5 Undetectable AI Websites in 2024

• Conclusion

• Frequently Asked Questions

Factors to Consider When Choosing Undetectable AI Services

We evaluated the five best AI tools for humanizing content using these criteria:

Undetectability

Can this tool bypass AI detection? How many AI detectors can the tool bypass?

The more AI detectors it can bypass, the higher its undetectability. Tools with a high level of undetectability are particularly useful for bloggers and content creators because search engines are less likely to flag content produced by these tools.

This is why sites containing undetectable AI content enjoy higher rankings. We conducted a small experiment where we first wrote some text using ChatGPT and humanized ChatGPT-generated text using these undetectable AI services.

We then scanned the outputs using the following AI detection tools:

• Turnitin

• Originality.ai

• GPT Zero

• Winston AI

• ZeroGPT

• Crossplag

• Scribbr

• Quillbot

Readability

High readability can help a site's SEO. When users find it easy to read what's on a site, they're less likely to bounce and more likely to engage with the content on the site. For this reason, we also assessed the readability of the text produced by these AI writing apps.

To assess readability, we used a Flesch-Kincaid online calculator. For this article, Flesch reading ease scores that are equal to or greater than 50 are deemed good.

Scores between 45 and 50 are considered fair, while those below 45 are categorized as poor.

Originality

Unoriginal content does no one any good. Plagiarism ruins a website's SEO.

Submitting plagiarized work could hurt your grades as a student or as a professional. That is why we submitted the humanized texts to Turnitin's plagiarism checker.

The similarity score assigned to the text by Turnitin helped us determine if it was original content.

Summary of Our Findings

Below, we've ranked the undetectable AI services from the most impressive to the least impressive. This ranking is based on the performances of the AI tools in our experiment.

1) StealthGPT: StealthGPT can bypass every AI detector with minimal effort. StealthGPT's content creation had a good readability score of 54.3 and passed Turnitin's plagiarism check. These findings indicate that StealthGPT could boost your SEO ranking.

2) HIX Bypass: HIX Bypass is the second-best undetectable AI website. It bypassed approximately 63% of AI detectors including Turnitin and GPT Zero. HIX Bypass’s content had a Flesch reading ease score of 52.7 and passed Turnitin's plagiarism check.

3) BypassGPT: BypassGPT is the third best undetectable AI website. It beat just 25% of AI detectors, though, excluding Turnitin, Originality.ai, and GPT Zero.

BypassGPT’s content got a low Flesch reading ease score of just 13.8 and failed Turnitin's plagiarism check.

4) Humbot: Humbot bypassed just 13% of the AI detectors but the reading ease score of its content was 54.7. Its output passed Turnitin's plagiarism check too.

5) Stealthwriter: Stealthwriter bypassed approximately 13% of AI detectors too. Its content had a fair readability score of 45.4 and passed Turnitin's plagiarism check.

Best 5 Undetectable AI Websites in 2024

1. StealthGPT

StealthGPT specializes in producing undetectable content fast via artificial intelligence. It was built through a combination of machine learning and other methods and works through natural language processing and other advanced algorithms. It's based on an enhanced GPT language model.

StealthGPT’s AI humanizer humanizes AI-generated content in any tone you choose. You may also select the mode of humanization that you prefer. StealthGPT has three modes: low, medium, and high. The mode you choose doesn't really matter because regardless of your choice, the output will be high-quality and undetectable.

However, we encourage users to select the medium mode. This mode lets StealthGPT balance undetectability with readability. In other words, the humanized text will make a lot of sense but it will still be undetectable.

Undetectability of StealthGPT's Content

The results of the study are displayed in the chart below.

According to the chart, Turnitin, Winston AI, and Crossplag predicted that there was a 100% chance that StealthGPT's content was human-written. Originality.ai and GPT Zero flagged only 6% of the text.

Scribbr believed that there was a 93% probability that StealthGPT's content was human-written. Quillbot gave the text a human score of 91 out of 100. With such high bypass rates, StealthGPT is becoming a nightmare for colleges.

Readability of StealthGPT's Output

Here's a screenshot of the content's readability score.

StealthGPT's output had a score of 54.3 despite beating all AI detectors. No other undetectable AI website could achieve this feat.

Originality of StealthGPT's Content

We scanned StealthGPT's content using Turnitin and found that 0% of the text was plagiarized.

So, the answer to this question is: yes, StealthGPT produces plagiarism-free content. These results prove that if you know StealthGPT and use it, you'll find content creation extremely easy and rewarding.

StealthGPT Pricing

The image above shows StealthGPT's pricing plans. StealthGPT's offer and value far surpass every other competitor on the list.

2. Stealthwriter

Stealthwriter’s AI humanizer is available in two models: the Ninja and the Ghost models. While those on the Stealthwriter free plan can use the Ninja model, the Ghost model is available to only subscribers.

Stealthwriter hasn't disclosed any substantial difference between both models. It just says that the Ghost model writes better and more readable outputs.

The AI humanizer in Stealthwriter has 10 levels of humanization, ranging from 1 to 10. At the lower levels (1 to 4), Stealthwriter enhances the readability of AI-generated text, but it won't be highly undetectable. At level 5, the output achieves a good balance of readability and undetectability. Higher levels (6 to 10) make the text more undetectable but less readable.

One thing we like about Stealthwriter is that it generates up to five drafts, giving you multiple options to select from. Stealthwriter can also help you find the best draft out of the five.

Undetectability of Stealthwriter's Content

We put Stealthwriter to the test. In the image below, we've summarized Stealthwriter's performance.

In the experiment, Stealthwriter beat Turnitin AI detection. However, its content had human scores of 5%, 18%, 37%, 29.12%, 0%, 56%, and 26% on Originality.ai, GPT Zero, Winston AI, ZeroGPT, Crossplag, Scribbr, and Quillbot respectively. This means that it didn't bypass any of those AI detectors.

There's almost no difference between paraphrasing content and rewriting it with Stealthwriter.

Readability of Stealthwriter’s Output

Here's a screenshot of the Flesch reading ease score of Stealthwriter's content.

Stealthwriter's text scored 45.4 and was categorized as fairly difficult to read. This implies that reading the actual content can be incoherent and difficult to understand.

Originality of Stealthwriter's Content

Turnitin has answered this question for us.

Apparently, Stealtwriter is the only undetectable AI site that failed Turnitin's plagiarism check in this experiment. This shows that you need to think twice before deciding to use Stealthwriter to streamline content generation.

Stealthwriter Pricing

Here's a screenshot of Stealthwriter's pricing plans.

Stealthwriter has a free plan that lets you humanize 300 words per time. To humanize more words at once, upgrade your account to one of its paid plans.

HIX Bypass

HIX Bypass is one of the many AI tools offered by HIX.AI. There's no official statement regarding what language model powers HIX Bypass.

However, it has been confirmed that the tool was trained via statistical modeling and linguistic analysis. Although HIX Bypass claims to support over 50 languages, it currently humanizes only texts written in English by ChatGPT, GPT-4, or Gemini.

It can't humanize text generated by other AI writing tools such as Bard.

Undetectability of HIX Bypass's Output

We've tested this AI writer. Here's a summary of the test results.

HIX Bypass beat Turnitin, ZeroGPT, Crossplag, GPT Zero, and Scribbr. The first three AI detectors gave HIX Bypass’s content a human score of 100% while the last two gave the text human scores of 99% and 98% respectively.

However, Originality.ai, Winston AI, and Quillbot believed that the text was AI-generated. While Originality.ai assigned the content a human score of 48%, Winston AI and Quillbot gave it human scores of 30% and 0% respectively.

Readability of HIX Bypass’s Output

Here's a screenshot of the Flesch reading ease score of HIX Bypass’s output.

Honestly, 52.7 is a good readability score. HIX Bypass was able to achieve average undetectability and high readability.

Originality of HIX Bypass's Content

Here's a screenshot of Turnitin's similarity report.

According to Turnitin's scan, HIX Bypass's content is plagiarism-free.

HIX Bypass Pricing

Above is a screenshot of HIX Bypass's pricing plans.

BypassGPT

BypassGPT can streamline the process of creating undetectable essays, blogs, and marketing copies. In addition, BypassGPT provides AI detection reports.

These reports let you know the extent of the undetectability of the BypassGPT-generated text. However, the reports aren't accurate.

There are times when BypassGPT has claimed that its outputs could beat some AI detectors but users later found that the outputs were detected by those AI detectors.

Undetectability of BypassGPT's Content

Below is a chart showing BypassGPT's performance.

From the chart, we can tell that BypassGPT could bypass only ZeroGPT and Crossplag. Turnitin, GPT Zero, Winston AI, Scribbr, and Quillbot believed that there was a 0% chance that the BypassGPT's content was written by a human.

Meanwhile, Originality.ai gave the text a human score of 6%.

Readability of BypassGPT's Output

The screenshot below shows the readability score of BypassGPT's text.

BypassGPT’s content was very difficult to read. It had a Flesch reading ease score of 13.8, which was the lowest score that we came across during our experiments.

Originality of BypassGPT's Content

Here's a screenshot of the plagiarism score of BypassGPT's text on Turnitin.

Based on the screenshot above, we can confirm that BypassGPT generates plagiarism-free content.

BypassGPT Pricing

The scsreenshot above shows BypassGPT's pricing plans.

Humbot

Humbot.ai can automate the process of turning AI-generated content to human writing. The owners of the app boast that it can consistently beat GPT Zero, Originality.ai, Turnitin, and other major AI detectors. Humbot.ai humanizes text in 50+ languages.

Undetectability of Humbot’s Text

This chart sums up the level of undetectability of Humbot's text.

Humbot's content was completely undetected by Turnitin. However, every other AI detector flagged the text, giving it the following human scores:

• Originality.ai: 11%

• GPT Zero: 8%

• Winston AI: 0%

• ZeroGPT: 38.49%

• Crossplag: 0%

• Scribbr: 0% AI

• Quillbot: 0% AI

Readability of Humbot’s Output

Humbot's content was the most readable. The text had a Flesch reading ease score of 54.7, which was 0.4 points higher than the readability score of StealthGPT's content.

Originality of Humbot's Content

Below is a screenshot showing the result of Turnitin's scan of Humbot's content.

The AI writer's text got a 0% similarity score on Turnitin, indicating that the text was original.

Humbot Pricing

Above is a screenshot of Humbot's pricing plans.

Conclusion

Of all the undetectable AI tools we talked about in this article, StealthGPT is the best AI writing tool because of its ability to bypass AI detectors. This claim is based on the research we conducted.

StealthGPT is highly versatile. It’s capable of creating undetectable content for various purposes, including social media posts.

If you're seeking a tool that'll remove all signs of AI generations from your text, you should use StealthGPT.

Frequently Asked Questions

How do I avoid being caught when using ChatGPT?

To make ChatGPT undetectable, humanize the ChatGPT-generated text with an undetectable AI tool. We recommend using StealthGPT for humanization because it has a 100% success rate.

Can undetectable AI sites help with the optimization of content?

The use of AI tools such as ChatGPT's OpenAI model and undetectable AI tools in content optimization is to automate content humanization. This process transforms the content into a human-like form, ensuring it doesn't sound spammy and thus avoids being penalized by Google.

What is the most accurate AI detection tool?

In our experiment, Quillbot proved to be the most accurate AI detection tool. It correctly identified AI-generated content four out of five times. While Gptzero was less accurate than Quillbot, it was better than the other six AI detectors.