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The development of AI tools is currently moving faster than ever. Tools that help you generate copywriting text, advertisements, or paraphrasing sentences, are all out there. And there is much more to come. These tools are a good solution to run your business more effectively.
However, they cannot completely replace us as human beings. Whether you run a marketing agency, e-commerce webshop, or coaching business, the human brain is always needed to make decisions and come up with long-term strategies.
The problem with these AI-generated texts from for example ChatGPT is that Google detects them as AI-generated. This may result in lower rankings in the future. The question is, how can you still use your AI-generated content without being detected as AI content? Well, AI humanizer tools are the solution! These tools transform AI-generated text into undetectable human-like content.
In this blog, I’ll discuss what the best AI humanizer tools of this moment are.
And FYI: This article has been written by a real human 🙂
Here’s the overview of the three best AI humanizer tools:
Contents
- How I Tested The Best AI Humanizer Tools
- What Are The Best AI Humanizer Tools?
- Summary Of The Best AI Humanizer Tools
How I Tested The Best AI Humanizer Tools
In ChatGPT, I typed the prompt: Write a blog about the keyword ‘best vacation tips in Paris’. This was the output from ChatGPT:
First, I wanted to test if the ChatGPT output bypassed AI detection. Therefore, I copied the AI-generated content above and plugged it into two AI detection tools: GTPZero and Contentdetector.ai.
GPTZero detected the AI-generated content as follows:
As you can see, the text did not bypass GPTZero.
Then, I put the ChatGPT text into Contentdetector.ai. This was the result:
Again, the ChatGPT text did not pass the test. The ChatGPT text was detected with a probability of 63.33% and this meant that the content may have AI.
As you have seen, the AI-generated content from ChatGPT did not bypass the AI detection of GPTZero and Contentdetector.ai. Now, it’s time to copy the ChatGPT content into the AI humanizer tools (Undetectable AI, GPTinf, and Stealthwriter). Then, the humanized content will be copy-pasted into GPTZero and Contentdetector.ai. Let’s hope for better results and let the AI humanizer tools do their work to bypass AI content detection!
What Are The Best AI Humanizer Tools?
These are my picks for the best AI humanizer tools:
1. Undetectable AI
Starts with 10.000 words for $9.99/month.
As the name says, Undetectable AI generates truly undetectable AI content. This tool turns your AI content into high-quality writing that bypasses AI detectors. The output of Undetectable AI is indistinguishable from human-written text.
It’s great that Undetectable AI offers the option to adapt to your readability and writing purpose. For readability, you have for example the option to choose ‘university’ or ‘marketing’. For this purpose, you have multiple options such as ‘general writing’, ‘cover letter’, or ‘essay’.
With these varieties of output options, it’s relevant for a broad public that all have different purposes for their content.
Results
First, I processed the humanized content of Undetectable AI into GPTZero.The result of GPTZero was that the text was likely to be written entirely by a human. Nice!
Secondly, I copied the humanized content from Undetectable AI and plugged it into Contentdetector.ai. It turned out that the humanized text had a probability of 50% of being detected as AI. The AI content detector also reported the remark ‘entirely human’.
If I read the humanized output of Undetectable AI, I see that there are no spelling mistakes or strange words in the middle of sentences that do not belong there. This puts my mind at ease since some humanizer tools result in bypassing AI detectors but also come with very strange sentences that don’t make any sense.
Key features
- Passes AI detectors
- Multiple readability options
- Multiple purpose options
- High-quality, readable content
- API compatible
- Option to make your text ‘more readable’, ‘balanced’, or ‘more human’
- Built-in AI detector
- Review all your humanized content under the documents tab
- Humanized content generated in seconds
My experience
The tool of Undetectable AI is very accessible, just plug in your AI-generated content and you’re ready to go. After you humanize your content, your original input and humanized output will be saved in a document. I liked this since you then had a good overview of all the content you humanized in the past.
Altogether, it’s an easy-to-use tool that helps you to transform your AI-detected content into human-written undetectable content.
Pricing
- Monthly – ($9.99/month) 10.000 words, passes AI detectors, and email support
- Yearly – ($5.00/month) Same features as a monthly package
- For business – (custom pricing) Non-expiring-credits and priority support
What I like
- Money back guarantee
- I detected no spelling mistakes or strange sentences in the output
- Passes well-known AI detectors: GPTZero and Contentdetector.ai
What I don’t like
- No live chat support
- Humanized content could be written in a more storytelling way
- The free plan consists of too less words for properly testing the tool
Rating
2. Stealth Writer
Stealth Writer is part of the best AI humanizer tool list. The tool guarantees that your AI-generated content will be plagiarism-free and undetectable by AI detectors. Well, let’s find out..
In three simple steps, you transform your AI-generated content into human-like writing.
First, plug your content into the tool. Then, click the ‘Humanize’ button to rewrite your content. The tool uses advanced algorithms to analyze your content and rewrite it in a way that bypasses AI detectors. In the third step, your content has been rewritten with creativity and nuance!
Results
I copied and pasted my AI-generated content into Stealth Writer. I kept the level of humanization on ‘Aggressive’ since I wanted to make sure that the output was as human-like as possible. This was the output of my humanized ChatGPT content:
Then, I paste my new content into GPTZero. This was the result:
To be honest, the result is not overwhelming. The humanized content bypassed GPTZero with a 50% probability that the content was entirely written by AI.
An important note of GPTZero is this: “Our ensemble of detectors predict different results for this text. Please enter more precise predictions”.
GPTZero asks for more input and this may influence the test result a bit…
The next step was to plug the content into Contentdetector.ai:
The result of this content detection test was much better. The humanized content of Stealth Writer passed the test with a 20% probability that text content was written by AI!
I critically studied the humanized output of Stealth Writer. Regardless of content detection test results, I find this output the best compared to the other AI humanizer tools in this article. The sentences are well written and I could not detect any grammar or spelling mistakes.
Key features
- Guaranteed plagiarism-free and undetectable by AI detectors
- Ninja model (free): Fastest model that bypasses most AI detectors
- Unlimited words in a free plan
- Ghost model (paid): Smartest model that bypasses advanced AI detectors
- Set different levels of humanization: Easy, medium, or aggressive
- Generator: Generate undetectable content directly
My experience
This AI humanizer tool was fun and easy to use. Like most of the best AI humanizer tools, Stealth Writer was self-explanatory. Plug in your AI-generated content, set the level of humanization (easy, medium, or aggressive), and hit ‘Humanize’.
The quality of the humanized output surprised me. I could not detect any spelling mistakes or strange sentences (as you sometimes see with these best AI humanizer tools).
The test result of GPTZero may not be the best, but at least you have well-written content without mistakes.
Pricing
- Basis – ($20/month) Rewrites 400 words per process and 20K words/month for Ghost model
- Standard – ($35/month) Rewrites 1,000 words per process and 50K words/month for Ghost model
- Premium – ($50/month) Rewrite 2,000 words per process and 100K words/month for Ghost model
What I like
- Unlimited words in a free plan
- No weird or random words
- Well-written sentences without spelling or grammar mistakes
What I don’t like
- Bypassed GPTZero with only 50% probability
Rating
3. GPTinf
Starts with 10.000 words for $12/month.
GPTinf is a tool that bypasses AI content detection tools. It removes AI content by paraphrasing and rephrasing your content humanly. The tool was designed based on multiple algorithms to verify both the high quality of paraphrased text and a high bypass detection ratio.
GPTinf aims to change only a few parts of the text while successfully bypassing all content detectors. The good news is that it bypasses GPTZero, one of the most used AI content detectors.
What I noticed is that GPTinf uses very small changes in the text such as synonymous, rotating language structures, or mixing phrases in a clever way. The tool does not come with a specific setting, it’s just plugging your text in and hitting ‘Get results’.
The tool of GPTinf is a suitable tool for anyone who needs his AI texts transformed into a human written text that bypasses AI detectors.
Results
Again, I tested if the humanized content of GPTinf bypasses Contentdetector.ai and GPTZero. Here are the results:
It bypassed Contentdetector.ai with a 20% probability that the content was written by AI. The humanized output of
As you can see, it also bypassed the AI detection of GPTZero. The result was that the text was likely to be written entirely by a human. Good stuff!
If I look at the content output of GPTinf, then a few things strike me. Firstly, in the second paragraph, I noticed an irrelevant word (the word: DIFFERENTIATEUR) in capitals. Secondly, I did see a spelling mistake (the word: Detailingof) in that same paragraph. But, as also mentioned on the homepage of GPTinf, it’s recommended to check your output and if needed process it through a spelling check tool like Grammarly. Let’s move on.
Key features
- Rephrase your text with one click
- Bypasses AI content detectors such as GPTZero
- High-quality text and bypass ratio
- Add API keys
- Add webhooks
- Show the difference between input and output
- Free trial of 250 words
- Email support
My experience
The tool of GPTinf is an input-click-output tool, simple as that. It does not offer any settings such as tone of voice or level of formality. This makes the tool quick to use. The generation of your humanized content does not take long, less than a minute in my experience.
Once you receive the output, you have the option to show or hide the difference from the original input. In my view a nice feature, because it gives you a better insight into what way GPTinf paraphrases your sentences.
Show difference feature:
Hide difference feature:
Pricing
- Premium monthly – ($12/month) 10.000 words per month and customer support
- Premium annually – ($8/month) 10.000 words per month, customer support, and 4 free months
What I like
- Quick and easy use of the tool
- Runs on an algorithm that ensures high quality and a high bypass ratio
- Bypasses the most used AI detectors such as GPTZero
What I don’t like
- The accuracy of the output can be improved
- Incidentally detected a word in capitals and one spelling mistake
- You need other tools such as Grammarly to finetune your output
Rating
Summary Of The Best AI Humanizer Tools
In this blog, I tested the best AI humanizer tools of this moment. It turned out that they all bypassed AI content detectors, which is the most important reason for using an AI humanizer tool.
Undetectable AI comes with the most extensive features. You have the option to choose what the readability and purpose of the text should be. It bypasses both GPTZero and Contentdetector.ai (with a 50% probability that the text is written by AI). In my opinion, due to the options to set your purpose or readability for for example businesses or universities, this is the best solution for marketing agencies or students. The output of this tool is the most accurate, meaning that the paraphrased sentences had the same meaning as before.
Stealth Writer is in my view the tool with the best quality output. The humanized content did not contain any spelling or grammar mistakes. The sentences were well-written in a creative and nuanced way.
GPTinf is the most easy-to-use AI humanizer tool. It’s just plugging in your content and hitting on results to receive your output. It bypasses both GPTZero and Contentdetector.ai (with a 20% probability that the text is written by AI). In my view, this tool is the best basic tool, since there is not the possibility to change any settings for the output. The output is okay to use but sometimes you have to check it with a spelling tool.
If you would like to read more of my articles, you can read them here.