One of the biggest surprise elements of the rise of generative AI is how easy ChatGPT, Claude and most popular LLM’s are to detect. The reason behind this is simple: new LLM’s are trained on data that is generated by AI. The phenomenon is called AI poisoning. This made way to several new tools that help adjust the outputs of AI chatbots and make them undetectable to AI detectors. These tools are usually referred to as AI Humanizers.
| Rank | AI Humanizer | Key Features | Pros | Cons | Free Trial? | Overall Impression |
| 1 | GPTHuman |
|
|
| Yes | Best all-around humanizer; reliable and user-friendly |
| 2 | StealthGPT |
|
|
| No | Good all-purpose solution but no trial option |
| 3 | Undetectable AI |
|
|
| Limited | Original pioneer in AI Humanizers; powerful but can be inconsistent |
| 4 | Humanize AI Pro |
|
|
| Yes (Free Trial) | Popular free tool; good for less-stringent detectors |
| 5 | Write Human AI |
|
|
| Limited (200 words) | Decent budget choice, lacks advanced features |
| 6 | Hix AI |
|
|
| Limited | Great if you want all-in-one AI, but bypass tool has mixed results |
| 7 | BypassGPT |
|
|
| No | Flexible platform for basic rewriting needs |
| 8 | Netus AI |
|
|
| Limited | Worth testing but requires trial-and-error to get optimal output |
How do AI Humanizers work
AI Humanizers will take the outputs that are generated by popular LLM’s like ChatGPT for example, and change the sentence structures to re-write the original content in a more humanlike, unpredictable way. Each humanizer on the market has its own proprietary technique. Some of the techniques used include changing the sentence structure, inserting random typos, varying the sentence lengths, and paraphrasing the words used in the original outputs. It’s important to note that most AI Humanizers will not bypass premium AI detectors, so it is really important to do your due diligence before buying a subscription.
Top AI Humanizers
1. GPTHuman – The Best AI Humanizer all around.
GPTHuman was created by a team of LM engineers that built some of the first AI Content Detectors, hence why they had the knowledge to ensure the solution they built was able to bypass all AI detectors. GPT Human is an AI Humanizer and can also generate original undetectable AI from scratch. Their solution comes with a guarantee and is really easy to use. Our team found that their outputs were better than most and that their platform was very user friendly.
Pros
-Comes with a free trial.
-Comes with a guarantee.
-Generates great outputs that are undetectable.
Cons
-Slightly more expensive than other options.
2. StealthGPT – Good all around option without trial.
StealthGPT is another good option when it comes to finding an AI bypasser. Their tool is well built and also comes with both an AI humanizer AND an undetectable AI writer. Their platform is user friendly and well built.
You can get more information about this tool by reading our complete StealthGPT review here.
Pros
-User-friendly.
-Several modes and tones available.
-Has cool features like PDF chats included.
Cons
-No free trial
-Also more expensive than other options.
3. Undetectable AI. The original AI Humanizer.
Undetectable AI was one of the first companies to develop a solution to transform ChatGPT outputs and make them more “stealthy” to bypass popular IA detectors.
Their solution has been updated a few times and there are several tones and options available. Users can adjust the desired length of their outputs, and choose tones. They have added several tools like an AI job application bot and AI Essay writer, which can be quite useful. We found their stealth capabilities quite good, and have seen mixed results when it comes to the reliability of their outputs. To achieve consistent undetectable AI writing, we found that some of their outputs contained erroneous elements that were out of context. This would achieve undetectability, but might affect the quality of your text in the first place. We would recommend proofreading your undetectable AI outputs before submitting your work.
Read our complete Undetectable AI review here.
Pros
-The outputs are extremely hard to detect, even by the best ai detectors.
-Platform is very simply to use.
Cons
-Pricing is a little expensive,
-Limited trial.
4. Humanize AI Pro. The most popular free AI Humanizer.
Humanize AI pro is mostly popular due to its free trial and low pricing. It is widely used by millions of users online. From our internal testings, the outputs were mixed. There are several modes available including academic, formal, simple and informal. Most of the outputs were able to bypass some of the free AI detectors but we were not able to make any of these bypass premium AI detectors like Winston AI. We would advise trying this tool out extensively before upgrading.
Pros
- Free Trial
- Low pricing
- Easy to use
- Bypasses low tier AI detectors
Cons
- Doesn’t bypass premium AI detectors like Winston AI and Turnitin.
- Outputs similar to simply using ChatGPT and advanced prompting.
5. Write Human AI. Straightforward solution with decent pricing.
Write Human AI is another extremely popular option when it comes to AI humanizers. Their solution is quite similar to several other options online and their pricing structure is simple and fair. There is a 200 word trial on their landing page, however that might not be enough to know if their solution meets the end user’s requirements. We found the options more limited than some of the other options available. We didn’t find a lot of options to vary the tone of the output, and there are no options to generate undetectable AI content from scratch.
Pros
-The platform is as straightforward as it gets.
-Fair pricing
Cons
-Limited options in terms of tones to humanize content.
-No options to generate undetectable AI content with prompting.
-Very limited trial.
6. Hix AI. The all in one AI tool.
Hix AI is definitely a very popular option on the market. You have likely seen some of thei ads on social media. Their suite of tools include not only a AI humanizer but also a browser GPT feature that is basically an AI feature that follows you as you as surfing the web, an AI powered search engine, an “Essay GPT” feature and Hix Chat, which is powered by ChatGPT.
More details about this solution on our Hix AI Bypass review.
Pros
-Really wide range of tools.
-All-in-one solution
Cons
-Mixed results on their AI bypass product.
-Expensive.
-Must pay for every different feature available on the Hix platform.
7. Bypass GPT
BypassGPT is a highly adaptable AI humanizer capable of accurately rewriting any kind of AI-generated text, including articles, reports, papers, essays, or other written materials. Its wide range of uses makes it a valuable tool for many people, including students, marketers, and freelancers.
One the things we appreciate from BypassGPT is that it provides different modes to help you transform your content in various ways. These modes enable you to overcome most of the regular AI detectors. Another benefit is that the platform works smoothly on all devices, be it a desktop, smartphone, or tablet.
If you want to know more about this AI Bypass software, read our BypassGPT review.
Pros
- Runs well on all devices.
- Intuitive platform.
Cons
- Doesn’t bypass premium AI detectors.
- Limited low pricing plans.
8. Netus AI
Netus AI was also an early player in the AI Humanizer mix. Their solution comes with a limited free trial and several modes numbered from 1 to 8. Netus also comes with a summarizing tool and a paraphrase which we didn’t find added much value to their overall solution. Nevertheless Netus is definitely a tool worth checking out. You’ll need to re-activate the AI bypasser a few times to get an output that bypasses AI detectors properly.
Pros
- Several models available.
- Additional tools available
Cons
- You’ll need to play around with the models available several times to get a decent output.
- Limited plans available at a lower price point.
Tips for Choosing the Best AI Humanizer
Test Premium Detectors: Many free or budget AI humanizers still fail against advanced detectors like Winston AI or Turnitin. Always test with the exact detectors you need to bypass.
Balance Quality & Price: While cheaper plans may be appealing, they often provide minimal stealth. Consider a trial period on higher-tier solutions if premium AI detection bypass is critical.
Always Proofread: Even the best AI humanizers can introduce random errors or off-topic content. Do a final read-through to ensure accuracy and cohesion.
If your goal is the most reliable AI undetectability without sacrificing text quality, our research points to GPTHuman as the top choice. However, each tool serves different needs, so pick the one that aligns with your budget, required features, and AI detection demands.
