I put the HumanizeAI in a test with three AI-generated text samples.
In this post, I’ll test and give an overall review of the tool, and show the results.
In my reviews, I emphasize the ease of use, and will only test free tools, or tools with Free trials.
Disclaimer: This post has affiliate links at no cost to you.
How to Use It
Enter their website.
Signing up gives you a higher word limit, and it’s still free. Humanizer is right on the homepage, so you can just paste your text in and go.
My Results
I asked ChatGPT to generate three different text samples on random topics. Then, I humanized the texts using Humanize AI and ran a separate AI detection scan on Undetectable AI to see their AI scores after humanizing.
With the free trial, you can only use the basic settings.
Text sample number 1:
After humanizing, I ran the AI Detection scan. Sentences highlighted in red have an AI-like structure, and the overall AI probability score is 85 %.
Text number 2:
The second text sample received a 65 % likelihood of being human-generated! Not too bad, it would probably pass as human-generated content.
Text number 3:
AI Humanizer managed to make my AI-generated samples sound more human, though only 1/3 might actually pass as human-written. It’s not a very good result, but it still performs better than many other tools I’ve tried.
Pros
- Easy to use
- Relatively accurate
- Has additional features that stand out from other similar tools (with the paid plans)
Cons
- Limited credits/words with the free trial
- The UI looks cheap
- Free version doesn’t highlight which parts of the texts are AI-like
Pricing
Here are the pricing plans of HumanizeAI.
HumanizeAI offers a money-back guarantee with some conditions.
In Summary
HumanizeAI is the OG AI humanizer tool, with 99,54 % success rate.
Having only tested the free version, I didn’t quite reach this success rate.
One of my text samples passed as human-generated, but the others were scored very high possibility of being AI-generated. Maybe the results could be different with paid plans?
With the paid plans, there are more features available, such as the Keyword and Phrase Lock feature, which allows you to freeze certain words or sentences, so that they will remain unchanged after humanizing.
Still, the results were better than with some other similar tools, so if you do some human editing after the AI Humanizing, your text could pass as human. I don’t see the point in this, though.
To Take Home
AI humanizers try to make AI-generated text sound more “human” by tweaking phrasing structure and tone. Some even promise refunds if your text gets flagged as AI.
Honestly, these tools aren’t very reliable and don’t really add much value. If you must use content generated by ChatGPT, it’s much better to edit and polish it yourself than try to trick a detection system.
My test text samples
Here are the text samples I used. The samples are generated 100 % by ChatGPT. The samples are different topics and lengths, varying from 150 words up to 500 words.
Text sample 1 — 150 Words
Houseplants do more than decorate our homes; they quietly transform the air we breathe and the way we feel. A touch of green can soften even the most sterile apartment, making it feel alive and personal. Caring for plants teaches patience — you can’t rush a seed to sprout or a leaf to unfurl. Each morning, a small routine of watering or pruning becomes a mindful pause in the day. The scent of soil, the sight of new growth, and even the occasional wilted leaf remind us that everything thrives through attention and consistency. Beyond aesthetics, studies show that plants reduce stress and improve concentration, making them tiny guardians of both mood and productivity. In a world full of screens and noise, a simple pothos on a windowsill offers a quiet, grounding reminder of nature’s calm persistence.
Text sample 2 — 300 Words
Coffee is more than a beverage — it’s a ritual, a global language spoken in mugs and espresso cups. From the bustling cafés of Rome to the quiet drip brewers of Japan, coffee culture reflects both tradition and innovation. Each region adds its own personality: Italians linger over a quick espresso, Scandinavians sip black filter coffee, and Australians have perfected the smooth, creamy flat white.
What makes coffee special isn’t just caffeine; it’s connection. We meet friends “for coffee,” brainstorm over it, and pause mid-morning to refocus. The familiar aroma signals comfort and productivity all at once. Even in solitude, brewing coffee feels communal — millions of people perform the same act every day, in different corners of the world.
Beyond its social role, coffee is a science of flavor. Roast profiles, grind size, and water temperature determine whether a cup tastes rich and nutty or sharp and citrusy. Specialty roasters and baristas treat it as an art form, crafting drinks that highlight subtle notes like chocolate, berries, or flowers. The modern coffee movement has revived appreciation for the farmers and regions behind each bean, encouraging sustainability and fair trade.
Ultimately, coffee unites people not just through shared taste, but through shared time — a few quiet minutes in an otherwise restless day.
Text sample 3 — 500 Words
IFor centuries, humans have looked up at the night sky in wonder. Before city lights and technology, the stars were our calendar, our map, and our mythology. Even today, when satellites and telescopes have revealed much about the universe, the act of stargazing still feels deeply human — a bridge between curiosity and peace.
The beauty of the night sky lies in both its mystery and familiarity. We recognize constellations that our ancestors once named, from Orion’s Belt to the Big Dipper. These patterns remind us that across cultures and millennia, people have shared the same view above. It’s humbling to realize that the light we see from some stars began traveling toward us millions of years ago. In every small point of light lies the story of time itself.
Modern astronomy has only deepened that wonder. With even a small telescope, anyone can see Jupiter’s moons, Saturn’s rings, or the soft glow of distant galaxies. Yet, what moves us most isn’t the data or the science — it’s the feeling. Standing under a clear night sky, we sense both our insignificance and our connection to everything.
Stargazing also offers rare quiet in a busy world. When you turn off your phone and let your eyes adjust to the dark, your thoughts begin to slow. You notice the rhythm of your breathing, the coolness of the air, the vastness of space stretching above you. It’s meditation through observation.
Whether you’re in a remote field or leaning over a balcony in the city, looking at the stars is a reminder of perspective. Our daily worries — emails, deadlines, arguments — shrink beneath the cosmic scale. The stars remind us that time is immense, yet every moment we experience under them is uniquely ours.