Humanize AI Detector Review (2025)

I put the Humanize AI detector to a test with six different text samples.

In this post, I’ll share the results and give an overall review of the tool. 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.

👉 Find the complete post on the best AI detectors here.

How to Use It

Enter their website, and you should see the AI Detector on the landing page. Just directly paste your text there.

You can also access the AI detector tool from the upper panel.

My Results

Let’s move on to the results. I had six pre-selected text samples, three of which were my old Medium posts, hand-written by me. The other three were just random texts generated fully by ChatGPT. I tested to see if the tool would be able to distinguish AI-generated from human-written ones.

First, the human-written samples.

The other two passed, but one sample got flagged as 80 % AI-generated.

Let’s try the AI-generated samples next.

Those were all correctly flagged as 100 % AI, which they are.

Humanize AI has another feature, text Humanizer. I decided to test it on the human-written text that got falsely flagged as AI.

The green parts are words replaced by AI to sound more human.

Then, I put the humanized text into the AI detector, and it really had an effect on the AI score.

Pros

  • Easy, no need to sign up
  • Humanizer tool actually improved the AI score
  • Can switch between dark/light modes

Cons

  • Falsely flagged my human-written text as AI

Pricing

Humanize AI offers these plans.

To Take Home

Humanize AI is an AI tool that offers AI Detection and AI Humanizer features. You can try out these tools without signing up (I was able to do all of these analyses without signing up), even the AI Humanizer.

The tool performance was solid; it flagged 5/6 correctly. Just one of my handwritten texts got falsely flagged as AI. I tested the Humanizer feature on that text sample and then re-ran the AI Detection analysis. The score went to almost 0 % likelihood of AI. This does raise some concerns about the accuracy, but otherwise, I was pretty satisfied with Humanize AI.

My test text samples

Here are the text samples I used. The human-written samples are from my medium blog posts, 100 % written by me. The AI-written samples are made by ChatGPT. The samples are different lengths, varying from 150 words up to 500 words.

Human-written text sample 1

Originally Apple AirPods Max was launched back in 2020, and the updated USB-C supported model was released in September 2024. The only difference is that Lightning connector was replaced with USB-C. Having only used the in-ear AirPods before, I was excited to try Apple’s around-ear AirPods Max. They are available in multiple colours but I chose the classic Starlight grey. The design feels luxurious and the headphones are just beautiful. At first glance, the earphones appear quite bulky and heavy, weighing around 385 g. I was worried that after wearing themin my head for a while, I would start feeling fatigued or discomforted. The mesh headband and well-cushioned ear cups are surprisingly comfortable. The large cups fit over the ears without putting any pressure anywhere and the textile-material feels nice and cool towards the skin. Cups are removable and held in place by a magnet. After been using these for 6 months, the cups get dirty very easily! Especially in this light colour. I used to wear these to the gym and they would get sweat-stained quickly. The stains do come off and the removable cups are relatively easy to wash.

Human-written text sample 2

In this July, I took part in a road cycling event called Saimaa Cycle Tour or SCT for short. It’s a 300-kilometer route through the lakeside of Saimaa, Finland’s largest lake. It’s the biggest cycling event in Finland, with thousands of participants from all over the world. The ride starts late in the evening and is completed overnight, so you really get to experience the Nordic nightless night. The sun sets around 11 pm and rises again after 3 am, so only a few hours of darkness. This was actually my second time participating, and once again I truly enjoyed the experience. The atmosphere is cheerful, and people excited and supportive of each other. Fuel and hydration are well taken care of by the event organizers. Selection of sports drinks, water, coffee, and carbs are provided by the organizer at a total of eight pit stops. Two of them even offer a warm, carbohydrate rich meal. Proper fuelling is essential, especially during an ultra-long distance like this! I wasn’t fully rested beforehand due to having worked night shift just before the race, so I was a bit nervous that extreme tiredness might hit me at some point. And it did, around three in the morning. When we stopped at a pit stop and sat there for a while, it felt impossible to keep going. Luckily, with the support of my teammates who kept pushing me, I managed to snap out of it, and we completed the ride in 11 hours (moving time). I was happy with this, considering my terrible preparation. I’ll definitely be back next year, at this point, it’s become a tradition by now!

Human-written text sample 3

Here is my guide to fuelling for ultra-long distance cycling event. Without proper energy, you will exhaust yourself, your performance will decline, and in the worst-case scenario, you won’t be able to finish. In your head, cycling might feel easier than running since there is less impact on the joints. But cycling hundreds of kilometers requires exceptional physical and cardiovascular endurance and is also mentally exhausting. I have completed an ultra long 300 km ride twice and I’ll tell you my nutrition plan. Mind you I’m no professional and will only be sharing my plan that worked for me.

Day or two before the ride

You should aim at eating normally few days before the ride but maybe keep your meals carbohydrate heavy. Something that you know is easily digestible for you, for example pasta, rice, and oatmeal. There is no need for excessive carb loading. Avoid overeating carbs too late in the evening, as it might impact your quality of sleep. I cooked myself a nice portion of pasta with some lighter proteins, such as fish, and kept my portion sizes normal so that they filled me just enough. Just remember to hydrate well!

Try to eat your breakfast 90–120 minutes before you start riding. If you are aiming for an easier pace, you can even do breakfast 60 minutes before. Porridge makes an ideal pre-ride meal, and for longer rides, adding some lighter proteins like eggs, provides extra slow-release energy and keeps you full for longer. If your race starts later or in the evening, same goes for lunch. Some easily digestible carbs topped with some lighter protein, like fish or chicken. Pasta is my favourite. If you are a coffee drinker like me, remember to pay extra attention to hydration since coffee is a diuretic.

It’s race time! Carbohydrates should be eaten in small, frequent amounts. Depending on the intensity of the ride, aim for 0.5–1 g of carbohydrates per kg of bodyweight per hour, and try to intake some carbs every 30 minutes. It’s not too difficult to meet your needs, but it’s very easy to overdo it. Overloading with carbs can lead to gut distress and stomach problems, and trust me, you don’t want to deal with that during your race! Your body already has a hard time digesting while performing a high-intensity physical exercise. Some riders are good with gels alone, while others need real food. I recommend practicing this beforehand so you will know what works for your stomach. Don’t try anything new on the race day! If possible, try to have some real food during the ride. The races I’ve participated in provided feed stations, and even real, warm meals. They were a real lifesaver as I didn’t have to carry too many gels in my jersey pockets. When taking in fluids, remember to add some electrolytes every once in a while. Overhydrating with plain water can dilute your sodium levels and even lead to hyponatremia.

Well done! I understand you might feel nauseous and have no appetite at this point. Try to have a protein or recovery drink if you are not able to have a proper meal within 30–60 minutes after you finish. This will kickstart your recovery. Remember to eat enough for the rest of the day as you have just completed a very energy-consuming exercise. Also remember to rest properly before resuming to physical activity.

AI-written text sample 1

Road cycling in Finland offers a unique mix of scenic beauty, challenging routes, and a strong cycling culture. The country’s vast network of smooth, well-maintained roads makes it ideal for long-distance rides, whether through the peaceful countryside, alongside shimmering lakes, or across rolling forests. Summer is the best season for cycling, with nearly endless daylight allowing riders to cover impressive distances under the Midnight Sun. Popular routes include the coastal stretches of the Archipelago Trail, where ferries connect picturesque islands, and the Lakeland region, which features winding roads and gentle climbs. In the south, Helsinki and Turku provide urban cycling routes combined with easy access to rural roads. Finnish cycling clubs organize regular group rides and events, such as the renowned Tour de Helsinki, attracting both amateurs and seasoned cyclists. With its clean air, safe roads, and stunning natural backdrops, Finland is a hidden gem for road cycling enthusiasts.

AI-written text sample 2

Returning to running after an injury can be both exciting and challenging. While the urge to get back on the road or trail is strong, the key to a successful comeback lies in patience, consistency, and listening to your body. Rushing the process may risk re-injury, so it’s essential to approach this transition with care. The first step is ensuring you are truly ready. This often means consulting with a doctor or physiotherapist to confirm that the injury has healed and you are cleared for physical activity. Incorporating rehabilitation exercises, strength training, and mobility work into your routine before resuming running will help rebuild stability and reduce the chance of recurrence. When you start running again, begin gradually. Many runners benefit from a walk-run program, alternating short jogs with walking intervals. This approach allows the body to adapt to impact stresses without overloading the recovering tissues. Keep the runs short, slow, and infrequent at first, focusing on good form rather than speed or mileage. Cross-training can play a valuable role during this phase. Activities like cycling, swimming, or elliptical workouts provide cardiovascular conditioning without the same level of strain on injured areas. Over time, as your body adjusts, you can progressively increase the duration and intensity of your runs. Equally important is monitoring how your body responds. Mild stiffness is common, but sharp pain or swelling is a warning sign to stop and reassess. Rest, ice, and professional advice may be necessary if discomfort persists. Finally, adopt a long-term mindset. Returning to running isn’t about quickly regaining lost fitness — it’s about creating a sustainable foundation for future performance. With patience, discipline, and self-awareness, many runners not only recover but come back stronger and more resilient than before.

AI-written text sample 3

Coffee is one of the world’s most popular beverages, enjoyed daily by millions of people for its taste, aroma, and energizing qualities. Beyond its cultural significance, a growing body of research highlights the many health benefits associated with moderate coffee consumption. From improved alertness to long-term disease prevention, coffee offers more than just a morning boost. One of the most immediate and well-known benefits of coffee is its stimulating effect. Caffeine, the primary active compound in coffee, acts as a natural stimulant for the central nervous system. It blocks adenosine, a neurotransmitter that promotes tiredness, thereby increasing alertness, focus, and reaction time. For many, a cup of coffee in the morning or during the workday can enhance productivity, concentration, and mental performance. Coffee also contains a rich array of antioxidants, which play a critical role in protecting the body from oxidative stress and inflammation. These antioxidants, such as chlorogenic acids, may contribute to the reduced risk of chronic diseases often linked to coffee consumption. Regular coffee drinkers, according to numerous studies, have a lower risk of developing type 2 diabetes, heart disease, and certain neurodegenerative conditions such as Alzheimer’s and Parkinson’s disease. In addition to protecting the brain and cardiovascular system, coffee has been shown to support liver health. Research suggests that drinking coffee may lower the risk of liver diseases, including fatty liver disease, cirrhosis, and even liver cancer. The liver-friendly benefits appear stronger in those who consume coffee consistently over many years. Athletes and active individuals can also benefit from coffee. Caffeine enhances physical performance by increasing adrenaline levels, improving endurance, and reducing the perception of effort during exercise. This makes coffee a natural, cost-effective pre-workout drink for those looking to maximize their training sessions. Furthermore, coffee has been linked to mental well-being. Moderate consumption is associated with a lower risk of depression and may improve overall mood. While it is not a substitute for professional treatment, the uplifting effect of coffee can contribute positively to daily emotional resilience. Of course, moderation is key. Excessive intake can lead to side effects such as insomnia, jitteriness, or digestive issues, particularly in individuals sensitive to caffeine. Most health experts recommend limiting consumption to three to four cups per day to maximize benefits while minimizing risks. In conclusion, coffee is more than just a comforting ritual or a quick energy fix. It is a complex beverage packed with bioactive compounds that support both mental and physical health. From boosting focus and performance to protecting against chronic diseases, coffee has earned its place as a beneficial part of a balanced lifestyle. When enjoyed mindfully and in moderation, a daily cup — or two — can be both a pleasure and a powerful ally for long-term health.