Undetectable AI is an online tool designed to check if your writing was created by AI. It also offers a feature to “humanize” AI writing, allowing it to bypass AI content detectors.
However, Undetectable AI is ineffective in bypassing our AI-detecting tool, Winston AI. It also degrades the quality of AI-generated content from tools like ChatGPT. In a word, it’s pointless.
Why is it called Undetectable AI?
The tool aims to modify AI-written content so that it goes undetected by AI-detecting tools.
Let’s take a step back.
Many students and writers use tools like ChatGPT to create their work and present it as their own. Teachers and publishers need to verify the originality of this work, so they use AI detectors like Winston AI (which has a 99.98% accuracy rate in detecting AI-generated content).
Students may turn to a tool like Undetectable AI to alter their writing, making it seem human-written.
But does it work?
Let’s find out.
Testing Undetectable AI
First, let’s create some writing with ChatGPT

Now let’s show you how Winston AI works
Let’s copy the text above into Winston and see the results:

As you can see, we correctly predicted that the content was AI-generated.
Now, let’s put our text into Undetectable AI.
You have two options: Check for AI or Humanize.
First, let’s choose Check for AI:

Undetectable AI correctly identifies the work as AI-generated and provides an AI Detection likelihood using several tools (Winston is not included, but we’ll come back to that).
Now, let’s try to “Humanize” the content.
To do this, you must agree to a pledge of “no academic misconduct.”

This time Winston predicted the text as 28% human.
It is also important to look at the quality of the text that Undectable AI has rewritten.

As you can see, the tool has resulted in some very poorly written English.
“Orphaned at an age he primarily educated himself. Also had some formal schooling.”
Not likely to win a Nobel Prize for Literature, I’ll say that much.
Undetectable AI Features
Undetectable AI offers a unified user interface that allows you to “check” if your writing will be detected as AI-generated content by various online AI-detecting tools.
AI Content Detector
As mentioned earlier, an AI detector determines if the written text is generated by AI or a human.
We observed that the Undetectable AI detector successfully identified the first ChatGPT essay as AI-generated. But what happens if I ask ChatGPT to write in a quirky tone?

Undetectable AI’s detector found this text (ChatGPT’s quirky essay on Alexander Hamilton) to be human-written.
However, on the right-hand side, you can see that Winston AI correctly identified the text as AI-generated.
Undetectable AI also provides their AI detection likelihood, which often aligns with their analysis.
I am unsure where they are sourcing information about these other tools, but they tend to agree with their own analysis.
Out of curiosity, I tested this article with GPTZero, and they also concluded that the text was written by AI, contrary to what the AI Detection Likelihood suggests.
Humanizer Tool
The Humanizer tool claims to make AI-generated text sound more human. However, it primarily uses an algorithm to change the text, similar to a paraphrasing tool like Quillbot.
The text doesn’t necessarily sound more human; instead, it attempts to bypass AI detectors. As seen in the previous example, the grammar and syntax remain unnatural.
In reality, ChatGPT can already produce text that is challenging for most people to distinguish from human-written content. Therefore, the need for a “humanizer” tool seems more like a marketing gimmick.
Human Typer Tool
The Human Typer tool is designed to mimic the process of typing each word as a human would. Typically, when people use an AI tool, they copy and paste the text into a document.
One method of verifying if a person wrote the article is to check the document’s history to see if it was pasted in or written section by section.
Undetectable AI Pricing
The Pricing of Undetectable AI depends on how many words you need to detect/humanize.
Here are some examples of prices per month:
Word Count | Price |
10,000 | $9.99 |
20,000 | $19 |
50,000 | $42 |
120,000 | $89 |
300,000 | $179 |
380,000 | $209 |
These prices do not include VAT.
You can also save money by purchasing yearly plans.
Frequently Asked Questions About Undetectable AI
What is Undetectable AI?
Undetectable AI is an online tool designed to check if writing was generated by AI. It includes a feature to “humanize” AI writing, aiming to help it bypass AI content detectors.
How does Winston AI compare to Undetectable AI in detecting AI-generated content?
Winston AI, with a 99.98% accuracy rate, is more effective in detecting AI-generated content compared to Undetectable AI. Attempts by Undetectable AI to bypass Winston AI’s detection are unsuccessful and degrade the quality of the AI-generated content.
What are the features of Undetectable AI?
Undetectable AI offers features such as AI content detection, a humanizer tool to alter AI text, and a Human Typer tool that simulates human typing patterns.
Are there any alternatives to Undetectable AI for AI content detection and modification?
Yes, alternatives include StealthWriter and Stealth GPT, which offer similar features to Undetectable AI, such as rewording tools to bypass AI detection.
What is the pricing structure for Undetectable AI?
Undetectable AI offers various pricing plans based on word count, ranging from $9.99 for 10,000 words to $209 for 380,000 words, with options for additional savings on yearly plans.