This company has a very immature owner. It seems like the operations are ran by a 5 year old. The owner, Brad, has a shady history with his previous humanizer that failed and also with KillerPaper... See more
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See what reviewers are saying
I've been using Grubby.ai for a couple of months now. Was satisfied with it even though it occasionally changed the theme of humanised text. HOWEVER, what has made me rate it 3 stars is that the... See more
For 1/4th of the cost of Quillbot (another humanizer tool), this is a steal. It's not perfect, but it does the job and saves me easily 50% of my time on essays and discussion posts. My only feedba... See more
Grub hub is much better than the alternative sites ! Only setback is 500 words before creating an account , but afterwards it’s a great & very useful tool that i’ll always use when using chat GPT and... See more
Company details
Written by the company
GrubbyAI is a cutting-edge undetectable ai tool designed to humanize AI-generated content and bypass detection systems. Powered by advanced algorithms, our AI Bypasser converts AI-generated text into natural, plagiarism-free, human-like content that will successfully pass any detection test!
Contact info
United States
- grubby.ai
2.9
Average
57 reviews
Replied to 60% of negative reviews
Typically takes over 1 month to reply
How this company uses Trustpilot
See how their reviews and ratings are sourced, scored, and moderated.
Grubby.AI is top tier
Grubby.AI is top tier. Easy to use and very beneficial. Definitely recommend.
October 8, 2025
Unprompted review
Reply from Grubby AI
Thank you so much Nick!
Welcome to the Grubby Gang, we're happy to have you here.
cant cancel without charge
They keep sending spam emails even after I unsubscribed.
October 8, 2025
Unprompted review
Reply from Grubby AI
Hi Funira.
Thank you for sharing this with us. We’re sorry to hear you had trouble canceling and that emails continued after you unsubscribed.
To clarify, subscriptions can always be canceled directly in the Account and Billing section without any additional charges. If something didn’t work as expected, we definitely want to look into it and make sure everything is corrected on your account.
Regarding emails, unsubscribing should immediately stop non-essential messages. If you’re still receiving anything after opting out, please send us the email linked to your Grubby AI account so we can manually verify your settings.
You can reach us at help@grubby.ai. We’ll sort this out right away.
ai bypass never worked once
The writing came out stiff, unnatural, and robotic. Not human at all.
October 5, 2025
Unprompted review
Reply from Grubby AI
Hi Yawunir,
Thank you for taking the time to leave this feedback. We’re sorry to hear the output didn’t feel natural to you.
Grubby AI offers several different humanizer modes, and each one rewrites text in a very different way. For some types of content, switching to another mode can make a big difference in tone and detection performance. Many users find that one specific model works much better for their writing style or use case.
If you’re open to it, we’d be happy to take a look at the text you were testing and help recommend the mode that will give you the most natural result. You can reach us at help@grubby.ai.
We appreciate your feedback. It helps us continue improving the tool.
Waste of time
Waste of time, it doesn’t work. All it does is change the words and sometimes sentences doesn’t even make sense. Good luck with customer service, they are very rude in their responses.
September 22, 2025
Unprompted review
Reply from Grubby AI
You have been a customer for 9 months. You forgot to unsub for September and weren't happy that we didn't offer a full refund.
If I forget to unsub from Netflix, they don't refund me. Same goes for pretty much every other subscription site out there.
You used the site for 9+ months, it does work and you shouldn't slander us just because you didn't get a refund.
You can cancel at any time and to anyone reading this, just know that you can try grubby out for free and judge the quality yourself.
I liked using this AI detector as it…
I liked using this AI detector as it helps speed up the process of doing homework and allows me to focus my time on more important tasks. Never got detected by a professor when using Grubby so it does exactly what it says it will.
September 15, 2025
Unprompted review
Reply from Grubby AI
Appreciate the review!
Just tried grubby for the first time
Just tried grubby for the first time. The writing isn’t perfect per se, but it’s not worse than any other humanizer. I tried it free and then got the $8 a month plan and I’m pretty happy.
August 8, 2025
Unprompted review
It's pretty useless
You normally spend more time trying to fix the nonsense created by this "humanizer." It might work for short paragraphs. I typically work with about 200 words at a time. The outcome is useless, and I end up having to rewrite it by hand. Yes, it will pass AI detection... because it makes no freaking sense. I also had issues twice with the word count/plan in the first month.
July 13, 2025
Unprompted review
I've been using Grubby.ai for a couple…
I've been using Grubby.ai for a couple of months now. Was satisfied with it even though it occasionally changed the theme of humanised text.
HOWEVER, what has made me rate it 3 stars is that the site is not been working in South Asia for over 2 months now. I can't even reach out to Customer Support as the message fails to deliver to CS from the site's Customer Support menu.
It is June 2025 as of writing this review. Every time I try to sign in, I get the Forbidden Error 403 message. I can't access the site WITHOUT using a VPN, which is an unnecessary hassle.
June 24, 2025
Unprompted review
terrible software
terrible software. fails to generate the humanised text and I have tried multiple times to contact help and it fails
June 1, 2025
Unprompted review
Doesn't support multiple languages
It is mentioned that the service supports 30 languages, but when I try to humanize Ukrainian text, all I get is a translation to English. That is not at all what is advertised. Also it is literally impossible to contact them. When I try to send a message by clicking the "help" button, I always get an error and nothing is sent. That all seems like a scam to me.
May 14, 2025
Unprompted review
DO NOT RECOMMEND
Not as advertised. Said I was gonna get humanized AI text, I got flagged 69% AI-Generated and left it worse than before.
April 21, 2025
Unprompted review
I tried this tool for my thesis…
I tried this tool for my thesis writing, but it does not work as advertised. Don't fall into the trap. I would not recommend anyone waste their money and energy on Grubby AI.
I purchased a monthly subscription, and after generating the first few pieces of content, I realized it was useless to put any further effort into it. Once you make a payment, forget about getting a refund. I used around 1,000–1,500 words, and I still have about 28,000 words left in my subscription, which are completely useless. The output sentences are completely distorted and totally change the intended meaning to something new. Furthermore, the content is still flagged as AI-generated by AI detectors, even after using both available versions of Grubby AI—Version 1 and Version 2.
Once you rewrite the same content to bypass AI detection, you will lose words from your subscription. Since Version 1 does not produce good output, you will try Version 2, you will to get the same result. In the end, you will finish your available words in a monthly or weekly subscription and be left with nothing but frustration.
The Grubby AI service team is entirely uncooperative regarding refunds and does not respond. I would never recommend anyone waste their time and energy on it.
March 25, 2025
Unprompted review
Reply from Grubby AI
Hi Mahmood,
Thanks for taking the time to type this all out. You seem super frustrated, and we'd love to chat with you. We reached out via email, and are committed to doing everything we need to make this right for you.
So, it looks like you posted this on March 29th, and we've had no issues with our humanization model in that timeframe. It's hard to undersatnd how the output you recieved was totally distorted and unable to be used, considering we've been totally operational this entire time.
Yet, we're still super curious about the specifics of this situation. If you reply to us via email, we'd love to see your humanized text so we can better understand what happened here.
Please get in touch with us, we'd be more than happy to help you.
You can reach me directly at tom@grubby.ai.
-Tom
Grubby Is Best!
Grubby scored the best when I tried six different humanizer free trials. I just took the outputs from them and fed them to chatgpt and asked them to rate it, and grubby scored the best and it actually had lowest AI score too. Good site
March 23, 2025
Unprompted review
Fantastic experience
I had a fantastic experience using trustpilot. Super easy to use and understand. I plan on continuing to use this in the future!
March 6, 2025
Unprompted review
Pretty good site but I checked with…
Pretty good site but I checked with ZeroGPT and it was 57,45% AI meanwhile Grubby said that it's ok and that ai detectors think that too but ZeroGPT was 1 of them so a little Meh but atleast 42,55% below
March 15, 2025
Unprompted review
Reply from Grubby AI
ZEROgpt is pretty inaccurate + kinda junky. They have a million ads all over their site.
A better AI detector is GPTzero and I guarantee we pass there or your $$ back.
great tool to save time on school work
great tool to save time on school work. the best humanizer i've run into
February 23, 2025
Unprompted review
Grubby.ai has helped me a lot
Grubby.ai has helped me a lot. I really recommend to everyone who is still in school!
December 28, 2024
Unprompted review
Easy sign up and great results that…
Easy sign up and great results that helped me pass my English class, would recommend!
December 23, 2024
Unprompted review
Good deal for the money
Good deal for the money. Would like to see support in Arabic next year but for now it is good
December 19, 2024
Unprompted review
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