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AI Detector & AI Checker - Detect ChatGPT, GPT-5 & Gemini Text

QuillBot's Free AI Detector - Use our AI checker to analyze text and identify content generated from ChatGPT, GPT-5, Gemini, Claude, and other AI platforms. ... Paste your text below to check if it was written by AI.

quillbot.com › home › quillbot’s ai detector: the best ai detector

QuillBot’s AI Detector: The Best AI Detector

July 1, 2025 - QuillBot’s AI Detector is free and requires no user sign-up for scans of fewer than 1,200 words.

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People also ask

Is QuillBot free?

Yes, QuillBot is free to use. You can access AI tools, like the Paraphraser, Grammar CheckerAI DetectorAI HumanizerSummarizerCitation Generator, and Translate, completely free. · For access to even more tools and higher word limits, you can create a QuillBot Premium account.

quillbot.com › home › is quillbot ai detector accurate?

Is QuillBot AI Detector accurate?

What is QuillBot used for?

Students and professionals use QuillBot to strengthen their writing and boost productivity. QuillBot is a suite of AI tools that help you write better, smarter, and faster. These tools include: · Grammar Checker, which reviews your text for grammar, spelling, and punctuation errors and suggests improvements · Paraphraser, which rephrases text to make sure you have the right vocabulary, tone, and style for any context · Summarizer, which condenses documents down to the key points without losing the original meaning · Citation Generator, which automatically creates citations in over 1,000 differ

quillbot.com › home › quillbot’s ai detector: the best ai detector

QuillBot’s AI Detector: The Best AI Detector

How do you use AI detectors?

To use AI detectors, you should follow these best practices: · Learn how AI detectors work. It’s important to recognize their limitations and consider their findings as one piece of data instead of definitive evidence. · Understand how to recognize AI writing on your own. Being aware of the words, phrases, and structures that are typical of AI writing will help you evaluate AI detector results more effectively. · Be transparent about use and expectations. Communicate what role AI should play in academic, editorial, or professional contexts and outline your standards for using AI detection tool

quillbot.com › home › how do ai detectors work? | techniques & accuracy

How Do AI Detectors Work? | Techniques & Accuracy

quillbot.com › home › is quillbot free?

Is QuillBot free?

April 9, 2025 - Yes, QuillBot is free to use. This includes the Paraphraser, Grammar Checker, AI Detector, Summarizer, Citation Generator, and Translator.

quillbot.com › home › how to use an ai detector & when you should

How to Use an AI Detector & When You Should

August 5, 2025 - The simplest way to check if AI wrote something is to use an AI detector. QuillBot’s free AI Content Detector analyzes what percentage of text is AI generated and what percentage is AI refined.

aidetectplus.com › blog › quillbot-ai-detector-review

Quillbot AI Detector Review: More Like Illbot, 3 Surprising Things I Found

Let me tell you about the Quillbot AI Detector plans. Even though they have a free option, it still comes with limitations. Here's a quick rundown: ... You get: Paraphrase up to 125 words and fix basic grammar errors up to 1,000 words.

help.quillbot.com › hc › en-us › articles › 35295733817111-Is-QuillBot-s-AI-Detector-free-or-premium

Is QuillBot’s AI Detector free or premium?

QuillBot’s AI Detector is a free tool available to all users. You can check text for AI content at no cost.The only difference for Premium users is in file uploads: Free users → Upload 1 file at a...

quillbot.com › home › is quillbot ai detector accurate?

Is QuillBot AI Detector accurate?

July 21, 2025 - Yes, QuillBot is free to use. You can access AI tools, like the Paraphraser, Grammar Checker, AI Detector, AI Humanizer, Summarizer, Citation Generator, and Translate, completely free.

quillbot.com › ai-writing-tools

Free AI Writing Tools - QuillBot AI

In addition to the eight tools explained above, we also offer: ... Yes, all of these tools, except for our Plagiarism Checker, are free to use. However, a few require an account for access, such as QuillBot Flow, our AI writing assistant.

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gptzero.me › news › quillbot-review

Quillbot AI Content Detection Review: How Accurate is it?

October 14, 2025 - However, if your main goal is to detect AI-written content with high accuracy, GPTZero remains the top choice. Start detecting AI today for free. ... Compare the best AI detectors of 2025 with these breakdowns of their accuracy rates, unique ...

quillbot.com › home › how do ai detectors work? | techniques & accuracy

How Do AI Detectors Work? | Techniques & Accuracy

November 27, 2024 - Even if no AI detector is always right, QuillBot’s free AI Detector is advanced.

originality.ai › blog › quillbot-ai-content-detector-review

QuillBot AI Content Detector and Paraphrase Plagiarism Review – Originality.AI

October 26, 2025 - Read this study to see how AI Content in Google search results is steadily increasing. QuillBot offers a range of features with the free version of the tool, which is the case with many AI writing tools.

reddit.com › r/chatgpt › how accurate is quill bot ai detector ?

r/ChatGPT on Reddit: How accurate is quill Bot Ai detector ?

April 1, 2024 -

So I did use gpt for my essay but simply for idea and how to expand things, and more points I could make, I never copy pasted off it. So i put my essay though Zerogpt,grammaly, Ai detector, and all of them said human written or giving me low percentage, but quill Bot is giving me 57% chance ai text generated.???

I'm not kidding I've been thinking about writing a similar post the last few hours. I had ChatGPT provide me with an outline to structure my essay based on key points I wanted to focus on. Then I wrote the paper myself. Every other AI detector is reporting back 100% human text. For some odd reason, quillbot is telling me anywhere from 33-60% in random sections I wrote on my own. Feel like I never should have checked anyways and was just being paranoid. Now I'm worried I'm totally screwed.

Just use a “more human” ai or use a mix of both, if you mix together it’s harder to recognize. My recommendation is to go on LLm arena and experiment a little bit, Claude 3 opus is great, for example. (Honestly I switched to it)

quillbot.com › home › how to detect ai writing | 9 methods

How to Detect AI Writing | 9 Methods

November 28, 2024 - If you want to try an AI detector as a way to detect AI writing, you can use the QuillBot AI Checker for free. ... Plagiarism checkers are another type of digital tool to evaluate writing, but their goal is different from that of AI detectors.

zerogpt.plus › en › quillbot-ai-detector-tool

Free Quillbot AI Detector | AI Text Detection & Humanization Tool | ZeroGPT Plus

Free professional Quillbot AI detector for identifying AI-generated text. Detect ChatGPT, GPT-5, Gemini, Claude content with high accuracy. Free 500 words, unlimited access available.

play.google.com › store › apps › details

QuillBot: AI Writing Assistant – Apps on Google Play

✅Detailed: Receive in-depth feedback ... ✅Free: Get a grammar check, 2 paraphrasing modes, Translator, and AI Detector at no cost App Privacy and Data Safety: The security of your personal data is one of QuillBot’s top ...

Rating: 3.7 - 17.6K votes

quillbot.com › home › how do i check if ai wrote something?

How do I check if AI wrote something?

March 21, 2025 - The simplest way to check if AI wrote something is to use an AI detector. QuillBot's free AI Content Detector analyzes what percentage of text is AI

pcworld.com › home › feature › software feature

I tried 4 AI detection tools and they were (mostly) disappointing | PCWorld

April 30, 2025 - AI Detector by Grammarly: 37 percent ... a subscription model with more advanced AI detection features, but you can use the basic AI detection for free, so that’s what I did and based my judgments on....

reddit.com › r/chatgpt › quillbot ai detector

r/ChatGPT on Reddit: Quillbot ai detector

May 7, 2025 -

I have two essays due and I was wondering if anyone else has had similar issues with quillbot

Since it’s an important essay I’m checking if it’s ai generated but I do this in chunks of 200 words because if I put in the whole paragraph it always says no ai detected

Should I trust it when I put it in full paragraph or in parts ?

I try to change the bits marked by ai but sometimes it just says that my edits make the rest of it sound like ai instead of just saying no ai was used n getting worried cus I made a small change n it went from 20% to 60% n I was like wtf 😭😭

Quillbot's hit or miss tbh. sometimes it just swaps words and still sounds robotic. I've had better luck with walter writes ai, feels more like it's rephrasing how a real person would talk, not just thesaurusing stuff.

yeah i’ve had that happen too, kinda confusing, i usually trust chunk testing more, but when i need real clarity, Winston AI gives way more consistent and accurate reads

quillbot.com › tools

Free AI Tools - QuillBot AI

Paraphrase and check grammar across the web with our free Chrome extension. Get AI writing assistance directly within this classic word processor. Paraphrase, summarize, and check grammar in apps like Slack and Apple Notes.