QuillBot is a paraphrasing and writing suite with a grammar checker, AI detector, humaniser, summariser and citation generator. Its Premium page on 29 Sep 2026 (Netherlands session) showed Free at EUR 0 and Premium at EUR 8.33 a month billed annually, with a “58% off” label; there is also a Team plan without a public price. The catch is Free: paraphrasing stops at 100 words and two modes, so anything longer needs Premium. In US dollars, QuillBot’s own price FAQ gives Premium as $8.33 a month billed annually ($99.95 a year), $19.95 monthly, and $13.31 a month on a plan it labels semi-annual but describes as $39.95 billed every 3 months.
Free versus Premium, per the page
| Feature | Free | Premium |
|---|---|---|
| Price | EUR 0 ($0) | EUR 8.33 a month billed annually (Dutch page); $8.33 annual, $19.95 monthly (US FAQ) |
| Paraphrasing length | Up to 100 words | Full access |
| Paraphrasing modes | Standard and Fluency (2) | 9 unique modes plus unlimited custom modes |
| Paraphrase languages | Not stated | 23 |
| Summariser | 1,200 words | 6,000 words, custom summaries |
| Plagiarism checker | Not listed | 25,000 words a month |
| Humaniser | Up to 100 words, limited usage | Full access with history and insights |
| AI detector | Limited | Full access |
| AI chat and image generation | Limited usage | Higher usage, image generation with limits |
| Saved documents (Flow) | 10 MB | 100 MB |
Our arithmetic: 8.33 a month is about 100 a year in either currency; monthly billing at $19.95 is $239.40 a year, so annual saves about 58 percent, matching the page’s “58% off” label. All Premium plans include the paraphraser, grammar checker, plagiarism checker, AI detector, humaniser and summariser, plus browser extensions and apps for Chrome, Edge, macOS, Word, Android and iOS.
Who it suits, who should skip
- Suits students and writers who rewrite or condense text often and want one subscription across paraphrasing, grammar and citations.
- Skip if you write in English and only want grammar fixes: the free tier already fixes basic errors, and Grammarly is the more common choice for that job.
- Skip the AI detector and humaniser as proof of anything: the page does not state their accuracy, and we have not assessed it.
What this page cannot tell you
How natural the paraphrases read, or how reliable the detector is, is not on the page and we have not measured it. Earlier text called it the best paraphraser and said seven modes; we could not source either.
Method
Researched from QuillBot’s Premium page, read 29 Sep 2026 in a browser session. The Premium page showed euros to a Dutch visitor; US dollar prices come from QuillBot’s own price FAQ (quillbot.com/blog/frequently-asked-questions/how-much-is-quillbot-premium/). Nothing here comes from using the product.