How to Make AI Text Undetectable in 2025

Key highlights

• Know how to avoid AI detection by fixing repetitive phrasing, predictable wording and unnatural flow in generated content.
• Learn why AI detectors like Copyleaks and GPTZero may show false positives or miss AI-written text entirely.
• Use tools like Undetectable.ai, Quillbot and ChatGPT to rewrite AI text and change sentence structure and vocabulary.
• Humanise AI content to improve SEO, boost trust and keep your content from being flagged by Google.
• Edit manually to match your brand voice and build a real connection with readers that generic AI text can’t deliver.
• Explore how to combine AI speed with thoughtful editing to scale content safely and stay ahead of detection tools.  

Since the introduction of AI writing tools like ChatGPT, people have been exploring how they can use AI across business and everyday life, not just to produce content.

For anyone who regularly create content or sells online, the ability to generate AI content and quickly scale content marketing strategies is an exciting idea. But if the AI content sounds like it was written by a computer and not human like, people won’t want to read it. And Google might consider your AI content spam.

But how do you create content that bypasses AI detection and feel human written? One way to test your AI generated text is by running it through AI detectors. AI detection tools can help you figure out if your AI-generated content sounds robotic.

Here’s how to find out if your AI content bypass AI detection and how to avoid AI detection by refining it for both humans and algorithms.  

What is AI-generated content?

AI-generated content refers to blog posts, articles and product descriptions that are written by a computer using artificial intelligence software. The AI models generate content using human input, such as the topic, keywords and type of copy.

Real life examples of AI content generators that you can use to generate content include:

• ChatGPT and GPT-4: Can create multiple types of content (even for the same message) depending on what you ask for, including short and long-form.  
• Copysmith: Used for marketing and eCommerce content.  
• Jasper.ai: Long-form content creation, including books and articles.  
• Adzis: eCommerce content creation, including product descriptions and chatbot scripts.  
• Copy.ai: Short-form AI content that can be used for blogs, website copy, social media and sales assets.  
• Perplexity.ai: An answer engine that combines information from other AI content-creator tools and can be used for research and content creation.  

How is AI detection tools detect AI generated content?

AI checkers use a combination of natural language processing and machine learning features to sift through content. It lets you figure out whether it was most likely created by an AI systems or written by a person.  

These AI detection tools compare the writing that’s being tested with a large volume of content data from the rest of the internet. They use the dataset of existing content to predict the most likely words combinations and phrases used for the related topic.  

Various content detectors keep on training data to strengthen their detection capabilities and deliver more accurate results.The more predictable the piece of test writing is, the higher chances of identifying as AI generated content rather than human written text.  

At least, that’s how the AI algorithms score the text. It is entirely possible to detect AI generated text on something written by a human, depending on the writing style.  

In short, here are some of the clues that AI content detectors look for to flag your text as AI content.  

• Repetitive sentence structure.  
• Predictable word patterns.  
• Lack of transitions and casual phrasing.  
• Repetition of visually similar Unicode characters.

AI content mistakes that can trigger detection tools?

If you rely entirely on AI to create content, there’s a chance that one of the AI detection systems can figure that out.

Here are some of the common AI content mistakes that can make it harder for your content to avoid AI detection.

• Using an AI tool to write the entire piece of content.  
• Using the first draft of AI-generated output without changing any phrasing.  
• Not adjusting your AI-written content for the reader’s experience.  
• Failing to tailor AI-generated content to match your brand voice or tone. 

In other words, if you don’t make any changes to an AI draft, it’s much more likely to trigger AI detectors. Learning how to avoid AI content detection starts with editing for more natural tone, structure and originality.

How to use AI detection tools to test AI content?

You can use any online AI content detectors to bypass AI detection in your writing. Many of the most popular AI detection tools are free to use online. These include:  

• Copyleaks
• GPTZero
• Writer
• OpenAI

To use these ai detection tools, paste your text into the tool and you’ll get a score or estimate of how much of your content was generated by AI.

For example, if you test our sample paragraph that ChatGPT created with the Copyleaks detector, it is pretty sure the paragraph is AI content. Each AI checker uses slightly different AI algorithms and might return different results.

When checked by another content detection tool, Writer, the text gets a score of 68% human-written content, which means that 32% of the content failed to evading AI detection.

A note on AI content detectors

All AI detectors have different detection capabilities. In some cases, they may fail to identify AI generated content or even flag human-written content as AI. That being said, AI checkers are still a helpful tool. They quickly evaluate whether or not your content might read like AI-generated content based on the predictability of the sentence structure, words and phrases.

Ultimately, your goal is not just to pass AI detection but to publish content that connects with your readers. You want them to feel like it was written by a human and not generated as output from an AI chatbot.  

So, it’s always a good idea to review AI content yourself before running it through AI content detectors. If it sounds a little off or robotic, you may want to tweak it so it comes across as more conversational and human like.

Along with that, you can use diverse vocabulary and content related graphics to make your content pass AI detection. 

How to bypass AI content detection and Humanise AI-generated text?

Here are the quick steps to remove ai detection from your AI generated content. 

1. Use Undetectable.ai to rewrite the AI content  
2. Ask ChatGPT to rewrite that content  
3. Use Quillbot to rephrase the content  
4. Change the syntax and vocabulary  

1. Use Undetectable.ai

Undetectable AI is a writing tool that rewrites AI content for the purpose to fool AI detectors. All you have to do is copy and paste your text into the editor. The tool itself will re-process it, using new words, structure and phrasing to mimics human writing.  

With Undetectable AI, you can change settings such as the reading difficulty level and the purpose of the writing. For example, take our sample paragraph generated by ChatGPT and run it through Undetectable using “High school” readability and “Marketing material” purpose.  

After processing your actual content in Undetectable AI, you can run the new version through any AI checkers to see if it bypass AI or not. 

When run through Writer, the new content passed as 100% human text. That being said, you would still have to optimise content for grammar issues like adding commas in lists and after transition phrases.  

Undetectable AI offers a free trial for the first 250 words generated. After that, you can purchase the plan to produce text to avoid detection.

Note: Run your content through different AI content detectors to get the accurate results as not all AI detectors follows same detection algorithms. 

2. Ask ChatGPT to rewrite AI-generated content

While paying just to bypass detection may seems like the simplest answer to how to make AI content undetectable, there are more options to it as well. If you’re not ready to subscribe to bypass AI detection, there are some free options to help adjust your text while maintaining originality of the content. 

Another option involves asking your original AI text generator to rewrite its own output.

The second round of processing means that the AI systems has to use different words and phrasing. It makes the content more likely to pass AI detection as human text because it will be less predictable.

As you can see in the screenshot, the text that ChatGPT rewrote is bypassing AI content detectors. Instead, the AI checker estimates that a human wrote 99% of the text.  

Also, it bears noting that different versions of ChatGPT don’t recognise text created by their siblings. So using different versions of ChatGPT to rewrite text adds another layer of uniqueness. 

3. Use Quillbot to rephrase

Quillbot is an AI-powered paraphrasing tool you can use to rewrite human or AI-generated content. It has different modes, like Fluency, Creative and Simple, that you can choose from depending on your brand’s voice and your target audience. You can also click on any of the rewritten words to get a list of other synonyms to quickly tailor your text.

Quillbot lets you see which text the tool changed and run the new version through a grammar check for a quick polish.

The new text from Quillbot passed the detection systems with an estimate that a human wrote 93% of the text. So while detection algorithms might miss your content as AI-generated, human readers might still think parts of it sound slightly robotic.

4. Change syntax and vocabulary

Finally, your ultimate weapon in figuring out how to make AI content undetectable is to combine AI and human writing. To bypass AI content detectors and make your readers feel comfortable.

With this method, you want to focus on:

• Changing repetitive sentence structure by moving clauses or breaking long sentences up into shorter ones.
• Replacing commonly used words and phrases with synonyms.
• Adding transition phrases.
• Using contractions to sound more conversational.
• Including first- and second-person pronouns, depending on your brand’s writing style.

In this example, a handful of changes bumped the Writer score on the passage to 98% written by a human. While this method may take more work than others, it also lets you In this example, a handful of changes bumped the Writer score on the passage to 98% written by a human. While this evading AI detection method may take more work than others, it also lets you adjust the text for your target audience and ensure the language matches your brand’s voice.

Why you need to know how to avoid AI detection in 2025?

But the biggest question is, why go through all this work? Why does anyone even need to know how to make AI content undetectable?  

AI-generated content is fast, but it doesn’t always appeal to human readers or search engines. Here are the biggest reasons to avoid detection in your AI content.

1. Improve SEO performance

Google doesn’t ban AI-generated content. But, it focuses on removing spammy content from its search engine results and it includes automated text in that category. Text that hasn’t been reviewed for user experience or has higher AI involvement along with text generated using synonymising or paraphrasing tools is most likely to be penalised.

Identifying AI generated content and editing it helps ensure that you’re always putting out high-quality content, which is key for improving your website’s SEO.

2. Improve readability

Overused words and repetitive sentence structure can create a negative (or at least boring) user experience for readers. These issues are most likely to show up on the first draft of AI-generated text, which can result in readers failing to engage with your content and going elsewhere for their information.  

3. Set your content apart

AI content generators are not built to create unique content. The content is based on predictability. As more companies use AI writers in their marketing, there’s a risk of everyone sounding the same.

By manually editing and reprocessing your content, you can publish human-like content that sounds different from other brands and gives you a competitive advantage.

4. Appeal to your readers

At the end of the day, you know your audience and your brand’s writing style best. While an easy-to-read text is good, making an actual connection is better. Tweaking AI content to resonate with your specific readers will help you create long-term relationships that lead to sales and revenue.  

Remember that your readers are the ultimate test. If they think your content sounds more robot than human, you may start losing connection and credibility.

What are the benefits of using AI content?

If If you have to edit the content you get from AI models, is it worth using it? For many marketers, the answer is “Yes.”

Here’s a closer look at the benefits of including AI-generated text in your content writing process.

• Efficiency: AI algorithms speed up content creation and can write articles (at least first drafts) in seconds instead of the hours needed by human writers.
• Scale: Smaller marketing teams can use AI tools to scale their content operations. For example, starting with an AI draft and editing it for style saves time and enables people to publish more. You can also use AI to generate text for social media posts, which can be time-consuming to do without writing tools. 
• Beat writer’s block: AI is a great tool to deal with writer’s block by generating new content ideas for your human writers. 
• Cost savings: Investing in AI writing tools can be a cost-effective alternative to outsourcing all parts of your content workflow. Even if you only use AI for part of the process, it can save you time and money.

Final thoughts

The marketing and content creation benefits of AI are just starting to be realised, but knowing how to avoid AI detection is now essential for long-term success. As a content writing tool, it can be a useful and cost-effective way to get more out of your marketing strategy.

That being said, it’s still important to review content before it goes out, no matter who That being said, it’s still important to detect AI content and review it through human moderators before it goes out, no matter who wrote it. This way, you can ensure a positive reader experience and create the type of consistent, high-quality content that keeps people coming back. 

Part of keeping people coming back is a reliable hosting solution for your website or blog and Bluehost can help with a variety of fast and secure hosting plans.  

Pair humanised AI content with fast UK hosting. Bluehost’s Managed WordPress plans offer reliable speed, SEO support and tools to help your AI content succeed.

Frequently asked questions