In September 2021, it was acquired by Learneo (formerly Course Hero, Inc.), a major player in education and productivity tools. QuillBot is an AI-powered paraphrasing and writing tool that uses Natural Language Processing (NLP) technology. APA has a name for changing a few words while the content stays put, patchwriting, and adding a citation does not repair it. Use AI detectors as one reference point, not a definitive judgment. Compare current language support, usage limits and privacy terms, and evaluate tools on the same labeled test set. GPTZero, quillbot ai detector Originality.ai and Copyleaks are alternatives, but this review does not establish that any has higher accuracy.
What is the Rewritify AI detector?
The best tools can distinguish between content that’s fully AI-generated, human-written but AI-refined, and completely human-written. Plagiarism checkers are another type of digital tool to evaluate writing, but their goal is different from that of AI detectors. Skyline Academic supports students with academic writing guidance, AI detection support, plagiarism checking, coursework support, and live tutoring.
It performed particularly well at finding texts that consisted of paraphrased AI content or mixed AI-and-human content, finding 50% of these texts. ZeroGPT performed quite well for a free tool, with 64% accuracy overall. Additionally, the results shown are very unclear compared to those of other tools.
Is QuillBot AI checker accurate?
- AI Checker tools help maintain that trust by identifying when content might be machine-generated.
- That question is driving interest in tools like the QuillBot AI checker, which promises to help identify AI-generated writing.
- Yes, Originality.ai’s accurate AI Detector is able to identify if AI writing has been paraphrased by a tool like Quillbot with 96% accuracy, as shown in the 3rd party study RAID.
- Learn more about why your writing may have been flagged on the Grammarly blog.
- It also correctly recognized human-written content in one test.
If a detector says “AI” but gives little useful direction, students may still feel stuck. That is why free academic support options and guided interpretation can be more useful than just another percentage score. A tool may be useful, but students still need to ask whether it is worth paying for.
Overall, AI detectors shouldn’t be treated as absolute proof that a text is AI-generated, but they can provide an indication in combination with other evidence. In general, our research showed that because of how AI detectors work, they can never provide 100% accuracy. Knowing which sentences triggered that score – and having a calibrated tool to fix them that was trained on the same detection logic – is a workflow. The humanizer is calibrated to produce output that passes GPTZero, Copyleaks, and Turnitin precisely because it is trained on what those detectors look for, as well as what they tend to miss. Then you run it through the AI humanizer, and the detector re-checks the output against the same signal set it just identified.
This helps writers, educators, and reviewers identify sections that may need reworking or citation before submission. “With Paperpal, I can think and write confidently without any reservations knowing that it will articulate my ideas clearly. Paperpal is invaluable for researchers looking to enhance their writing skills and communicate more effectively.” “Paperpal has revolutionized my writing! It takes my ideas and adds in its magic and makes it so much better. I can’t consider working on my writing without the help of Paperpal.” Unlock higher limits and reference checks with Prime and Pro plan Your sensitive academic work stays secure with Paperpal. Paperpal highlights edited and paraphrased AI text at the sentence level, not just a binary AI/human label, so you know what to fix before submission.
Comparing QuillBot AI to other tools
Our AI detector lets you scan your text against multiple leading AI checkers—including GPTZero, Originality.ai and ZeroGPT. Instantly get all AI detector results and know the AI score of your content. Or you could use Quillbot’s cutting-edge Grammar Checker and have our other productivity-enhancing writing and research tools just a click away, all while still staying on the platform.