QuillBot
QuillBot in 2026: paraphrasing, AI Detector, and Humanizer tools for writers. Free plan capped at 125 words, Premium from about $4.17/month billed annually.
About QuillBot
What is QuillBot (2026 update)
QuillBot is an AI writing suite built around paraphrasing, with added tools for grammar checking, summarizing, plagiarism checking, citations, and detecting whether text was AI-generated. It is grouped in the AI detection category, reflecting how central its AI Detector and Humanizer tools have become alongside its original paraphrasing engine.
What is new in 2026
QuillBot has leaned further into the AI-detection and humanizing side of its product in 2026, since so many writers now draft with tools like ChatGPT and need to check or adjust how that text reads before publishing. Its AI Detector flags whether a piece of text looks AI-generated, and its AI Humanizer rewrites AI-drafted content to read more naturally. QuillBot also added conversational AI chat and basic image generation to its suite this year, though these are positioned as supplementary extras rather than core reasons to subscribe. The core paraphrasing engine itself still offers seven distinct modes, including a Creative mode that restructures sentences more aggressively than a simple synonym swap, and QuillBot continues to bundle its Summarizer, Plagiarism Checker, Co-Writer, and Citation Generator into one workspace.
Key features
- Paraphrasing engine with seven modes, including Standard, Fluency, and Creative
- AI Detector for checking whether text appears to be AI-generated
- AI Humanizer for rewriting AI-drafted text to read more naturally
- Summarizer that condenses long text down to a target length
- Grammar checker, plagiarism checker, and citation generator in the same suite
- Basic conversational AI chat and image generation, added as supplementary tools in 2026
Pricing in 2026
| Plan | Price | What you get |
|---|---|---|
| Free | Free | Paraphraser limited to 125 words at a time, Summarizer capped at 1,200 words, only Standard and Fluency paraphrasing modes |
| Premium (annual) | About $4.17-$10/month depending on the specific annual offer ($49.95-$119.95/year) | All seven paraphrasing modes, full-length paraphrasing and summarizing, AI Detector, AI Humanizer, plagiarism checker, and citation generator |
| Premium (quarterly) | $13.31/month | Same Premium feature set billed every three months |
| Premium (monthly) | $19.95/month | Same Premium feature set with no longer-term commitment |
| Team | From about $7.50/user/month | Premium features extended to multiple users with shared billing |
Verified students get Premium for about $6.25/month. Because different official promotions list annual pricing anywhere between roughly $49.95 and $119.95 per year, check the official site for the current headline offer before subscribing.
Who should use it
QuillBot suits students, non-native English writers, and content writers who need to rephrase or tighten existing text quickly, plus anyone who wants to check whether a draft reads as AI-generated before submitting or publishing it. It is a good complement to a grammar tool like Grammarly rather than a full replacement, since QuillBot’s strength is rewriting and detection rather than deep style coaching.
Limitations and alternatives
The free plan’s 125-word paraphrasing limit makes it impractical for anything beyond testing the tool, and the newer AI chat and image generation features are explicitly described as secondary rather than best-in-class. AI detection tools in general, including QuillBot’s, are not perfectly reliable and can produce false positives or negatives, so treat detection results as a signal rather than a verdict. Alternatives include Grammarly for stronger grammar and tone coaching, Wordtune for a more conversational rewriting style, and Turnitin or GPTZero for institutions that need more rigorous AI-detection accuracy than a consumer paraphrasing tool provides.
Frequently asked questions
Is QuillBot free to use?
Yes, QuillBot has a free plan, but it limits the paraphraser to 125 words at a time, caps the summarizer at 1,200 words, and only offers two of the seven paraphrasing modes.
How much does QuillBot Premium cost?
Annual billing works out to roughly $4.17-$10 per month depending on the current promotion, quarterly billing is about $13.31/month, and month-to-month billing is $19.95/month. Verified students pay about $6.25/month.
What does QuillBot's AI Detector do?
It analyzes text and flags whether it appears to be AI-generated, which QuillBot pairs with an AI Humanizer tool that rewrites AI-drafted content to read more naturally. Like all AI detectors, results should be treated as a signal, not a guarantee.
What are alternatives to QuillBot?
Grammarly, Wordtune, and dedicated detection tools like Turnitin or GPTZero are common alternatives, depending on whether you need stronger grammar coaching, a different rewriting style, or more rigorous AI-detection accuracy.
Information last verified: September 2026.
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