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AI-generated
AI-generated & AI-refined
Human-written & AI-refined
Human-written
Caution: Our AI Detector is advanced, but no detectors are 100% reliable, no matter what their accuracy scores claim. Never use AI detection alone to make decisions that could impact a person's career or academic standing.
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Caution: Our AI Detector is advanced, but no detectors are 100% reliable, no matter what their accuracy scores claim. Never use AI detection alone to make decisions that could impact a person's career or academic standing.
Our AI Detector is designed with writers in mind. Submit your writing to see if—and how—AI was used to create the text.
Paraphrasing and grammar checking tools are ethical uses of AI writing technology. They help millions of non-native English speakers and writers refine their text and express their ideas fluently.
But most AI detectors can’t tell the difference between text that’s been created with generative AI tools—such as ChatGPT, Gemini, Claude, and others—and text that’s been refined using assistive tools. This leads to false positives and cultural bias.
So we built a better AI detector.
We don’t just identify text generated with AI tools such as ChatGPT, Gemini, and Claude. We also analyze text refined with paraphrasers or grammar checkers—including our own.
Here's what else sets our AI detector apart:
Scan unlimited documents at no cost
Analyze blogs, papers & any other text
Know exactly which text appears AI-generated
Receive your report in seconds
We’re more than just an AI Detector. We’ve built a variety of different tools to help you with every step of the writing and editing process. Explore more of what we offer below.
QuillBot’s AI content detector tool is trained with advanced algorithms to identify repeated words, awkward phrases, and unnatural flow, which are key indicators that the content is AI-generated. However, the more advances are made in AI models, the less any AI detector tool will be able to distinguish human-written from AI-generated content.
There’s two main reasons that QuillBot’s AI Detector is different from other AI detectors. First, we distinguish how AI was used to create your content. Our analysis will tell you if each section of writing was:
1) AI-generated
2) AI-generated & AI-refined
3) human-written & AI-refined
4) human-written
This way, you don’t just know if AI may have been used to generate the content. You can also understand how assistive tools may have been used in the writing process.
Second, we offer feedback on every section of your writing, so you always know exactly which sentences appear to contain AI-generated content. This makes your editing process much easier, as you can quickly identify and adjust any problematic sections of your text.
Yes, QuillBot’s AI Detector for teachers can report the likelihood that text in essays and other class assignments is AI-generated.
QuillBot’s AI content detector tool is trained with advanced algorithms to identify repeated words, awkward phrases, and unnatural flow, which are key indicators that the content is AI-generated. However, the more advances are made in AI models, the less any AI detector tool will be able to distinguish human-written from AI-generated content.
QuillBot’s AI Detector can only detect text and not images, video, or other rich media content.
The AI writing detector only identifies text generated by artificial intelligence. QuillBot has a host of other tools, including a Grammar Checker, Plagiarism Checker, and Paraphraser that can all help you improve the quality of your writing.
No. The AI Detector content checker will inform you of any AI-generated content, while our Plagiarism Checker can assist with unintentional plagiarism in AI-generated content.
No, the AI Detector will simply give you a percentage between 0% and 100% that represents the likelihood that AI-generated or AI-augmented content is in your text.
The AI Detector can currently analyze text in English, Spanish, German, and French.