Written by Admin Alex · Fact-Checked by M.Ali · Info Verified September 2026
Published: September 26, 2026 · Last updated: September 26, 2026
TL;DR: QuillBot is a paraphrasing and grammar tool with a free plan capped at 125 words per rewrite. Premium removes that cap and adds a plagiarism checker, summarizer, and citation generator, starting at $8.33 a month on the annual plan.
Paste a sentence into QuillBot, hit paraphrase, and watch the words shuffle in real time. That’s the whole pitch in one motion. Underneath it is a synonym slider that ranges from a light touch to a near-total rewrite, plus a grammar checker, a summarizer, a plagiarism detector covering over 100 languages, and a citation generator that spits out APA, MLA, or Chicago format on demand.
What the free plan actually gives you
Not much, honestly. The free paraphraser tops out at 125 words per submission, which is barely two paragraphs. Grammar checking on the free tier catches basic errors only, nothing close to the deeper style suggestions Premium unlocks. QuillBot also caps free users at 50 AI prompts a day across its tools. It’s enough to test the paraphraser’s voice before paying, not enough to run a real workflow through it.
What Premium costs
Three billing options, and the spread between them is bigger than most tools bother with.
Pay monthly and you’re at $19.95. Commit to a year up front and the same subscription works out to $8.33 a month, billed as $99.95 once. That’s less than half the monthly rate for exactly the same feature set, the discount is purely about how long you’re willing to commit, not a different tier of access.
A real example of what the rewrite looks like
Feed QuillBot a flat sentence like “The company reported strong earnings this quarter, beating analyst expectations by a wide margin,” and its Standard mode hands back something like “This quarter, the company posted robust earnings that significantly exceeded what analysts had projected.” Push the slider to Fluency or Formal mode and the phrasing shifts further, swapping in more academic vocabulary. It’s genuinely useful for breaking writer’s block or varying repetitive phrasing. It is not a tool for evading plagiarism or AI detection, and QuillBot’s own reviewers note it “doesn’t always bypass AI detection” when that’s the actual goal.
Where it falls short
Run several paragraphs through the paraphraser back to back and the tone starts to flatten out. Reviewers consistently flag that QuillBot “can strip the text of your tone of voice,” turning a distinctive writing style into something more generic. It’s a real tradeoff: the more aggressively you paraphrase, the more the output reads like nobody in particular wrote it.
Also in this space: if you’re comparing writing assistants, see our Samwell AI review for a look at a different approach, AI essay generation rather than paraphrasing an existing draft.
Bottom Line: QuillBot is a solid paraphraser for light editing and vocabulary variation, but the free plan is really just a demo, and heavy use will flatten your voice regardless of which tier you’re on.
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