QB
QuillBot
FreemiumLearneo · Writing
Paraphraser, grammar checker, humanizer and AI detector in one suite
4.4$8/mo
Supports Arabic
Overview
QuillBot is a writing suite built around its paraphraser (9 modes on Premium), with a grammar checker, a summarizer that handles up to 6,000 words, a 40+ language translator, a plagiarism checker (25,000 words/month), an AI detector and an AI humanizer. The free plan covers 125-word paraphrasing in 2 modes, basic grammar fixes and limited humanizing (6 uses/day), while Premium at $8.33/month billed annually (58% off monthly) unlocks unlimited paraphrasing, humanizing and AI detection, 23 paraphrasing languages and use across 10 devices. Chrome and Word extensions plus a macOS app fit it into existing workflows.
Features & specs
- Free plan
- Yes — 125-word limits
- API
- No
- Context size
- Summaries up to 6,000 words
- Languages
- 23 paraphrasing, 40+ translation
- Mobile app
- Web + browser extensions
- Plugins
- Chrome, Word & macOS app
Pros
- ＋Generous free plan to get started
- ＋Unlimited paraphrasing with 9 modes on Premium
- ＋Built-in AI detector plus humanizer
- ＋Plagiarism checker (25,000 words/month)
- ＋Chrome, Word and macOS integrations
- ＋Affordable at $8.33/month billed annually
Cons
- －Free paraphraser capped at 125 words
- －AI detector accuracy varies — do not rely on it alone
- －Best features locked behind Premium
- －No public API
Pricing plans
Free
Free
125-word paraphrase, 2 modes
Premium ($8.33/mo annual)
$8/mo