I put Decopy AI Text Humanizer to the 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.
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How to Use It
Getting started with Decopy AI is easy. Enter their website here.
You can conveniently access the AI Humanizer directly from the home page.
My Results
I asked ChatGPT to generate three different text samples on random topics, you can find them at the end of this post. 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.
You can modify the output to target different audiences by changing the purpose, length, and tone.
Let’s see the results from my text number 1:
Then I ran it through the AI Detection scan to see if it would pass as human-generated content. The first text sample received as high as 91 % probability of being AI-generated.
I tested the same text with different settings.
Expanding the length lowered the AI score to 76 %. The shorter the text, the harder it is to distinguish AI content from human-written.
Let’s move on to text number 2.
Very polished or academic language can sometimes be mistaken for AI-generated, so I decided to change the tone to “Friendly” and the purpose to “General Writing.”
It actually increased the AI probability score.
Lastly, my longest text sample number 3.
Still not a very good result.
So overall, none of the text passed as human-generated and received very high AI Probability scores after humanizing. Disappointing results.
Pros
- Easy to use, no sign-up needed
- Very generous character limit with the free version (5000 characters)
- Can tweak the output by adjusting the tone, length, etc.
Cons
- 0/3 of my texts passed as human-generated
Pricing
All of the features are free.
In Summary
Decopy AI is an AI tool that is designed to detect AI-generated content and offers multiple features, such as summarization and humanization. It even has an AI Math solver. All of the features are free!
I tested the AI Humanizer tool to see if it would be able to humanize my AI-generated text samples. You are able to do some adjustments to the humanized output, which was a nice touch.
The tool claims to be able to bypass Turnitin and other plagiarism and AI Detection software, but at least with my experience with the free tool, I can’t confirm that. None of my texts passed as human-generated content and received high AI Probability scores. Unfortunately, I can’t recommend the AI Humanizer, but the other features seem interesting and might be worth trying.
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.