Watch: Academic users should follow institution policy
Tool Writing freemium active Below 8
QuillBot
QuillBot is the AI paraphraser of record, with 35M+ writers and nine rewrite modes plus grammar, AI Detector, Humanizer, summarizer, citations, and...
7.5/10 Useful
Active
Monthly $0-$8.33/month billed annually in US checkout Annual varies by region
Best plan
$0-$8
Risk: Academic users should follow institution policy
Try QuillBot freeAffiliate link; no extra cost to you.
Rankings stay editorial.
Should you use it?
QuillBot is the AI paraphraser of record, with 35M+ writers and nine rewrite modes plus grammar, AI Detector, Humanizer, summarizer, citations, and Co-Writer. US annual Premium can show $8.33/mo, while checkout pricing varies by region. Pick it for transforming text; skip it for zero-to-one drafting.
- Buy if Paraphrasing existing text
- Pick $0-$8.33/month billed annually in US checkout; varies by region
- Skip if Generating content from a blank prompt
Plan guidance
What to buy
$19.95 monthly, $39.95 quarterly, or $99.95 yearly in public US pricing
Academic users should follow institution policy
Current pricing source: QuillBot Upgrade pricing
Fit
Use it for this, skip it for that
Best for
- Paraphrasing existing text
- ESL learners smoothing phrasing
- Students generating citations and summaries
- Writers needing mode-targeted rewrites
Avoid if
- Generating content from a blank prompt
- Heavy plagiarism scanning volume
- Long-form drafting or ideation
- Watch out
- Academic users should follow institution policy. Paraphrasing tools can create citation, originality, and disclosure problems if used to hide source borrowing.
Recent changes
Only what affects the decision
- Premium
Rechecked Premium, upgrade, pricing FAQ, and affiliate...
QuillBot Upgrade pricing - Premium Annual
Rechecked QuillBot Premium page and pricing-help page: public US page text still showed Premium at $8.33/mo billed annually, with monthly, quarterly, annual, and regional checkout caveats
QuillBot Premium feature page - Premium Annual
QuillBot's help center says monthly, quarterly, and annual pricing can vary by region at checkout; the annual $8.33/mo price was visible in US-oriented Premium page text during this refresh
QuillBot Premium feature page
Alternatives
Best swaps
Grammarly
Build comparison Superhuman-owned AI writing assistant for inline grammar, tone, rewrites, brand voice, and writing agents across 1M+ apps and si
$0-$40/member/month; Enterprise custom · 8.3/10 SpellbookAI legal copilot for Microsoft Word and multi-document contract work. Drafts, reviews, asks questions, runs playbooks, and sells
Custom quote; 7-day free trial · 8/10 WriterEnterprise generative AI platform running its own Palmyra LLM family. Covers writing, agents, and knowledge work with enterprise
14-day Starter trial · Enterprise custom · Palmyra API per MTok · 8/10QuillBot comparisons
See all →Grammarly vs QuillBot
June 2026 Grammarly vs QuillBot comparison: Grammarly wins for inline editing and team writing quality; QuillBot wins for controlled paraphrasing, summaries, citations, AI Detector, Humanizer, and student writing utilities.
QuillBot vs Wordtune
Updated June 27, 2026: QuillBot wins for mode-heavy paraphrasing, summaries, citations, and student tools; Wordtune wins for voice-preserving inline rewrites at a lower simplified plan ladder.
Proof and score math Verified Jun 25
Proof
Why this recommendation is trusted
Evidence QuillBot Premium feature page
- Source
- Registered source
- Freshness
- Current
- Confidence
- High confidence
- Verified
- Review
- Volatility
- Volatile
High-volatility evidence needs frequent review.
Editorial score
Unweighted average of 4 axes · confidence high
- Utility 8/10
How much real work it can do for a competent operator, end to end.
- Value 9/10
What you get for the dollar relative to the closest alternative.
- Moat 6/10
How hard it would be for a competitor to replicate the underlying advantage.
- Longevity 7/10
How likely the product is to still be best-in-class 24 months out.
Verified facts
- Best For Students and everyday writers who need paraphrasing, grammar cleanup, summarization, citation help, and plagiarism checks in a simple writing toolkit.
- Pricing Anchor QuillBot's public Premium page can surface Premium at $8.33 per month billed annually in US checkout; the Help Center says monthly, quarterly, and annual pricing can vary by region at checkout.
- Watch Out For Academic users should follow institution policy. Paraphrasing tools can create citation, originality, and disclosure problems if used to hide source borrowing.
- Paraphrasing Modes Premium unlocks broader paraphrasing and writing-tool capacity compared with the free product, so mode and word-count limits matter for heavy users.
- Academic Toolkit QuillBot is strongest as a convenience bundle around rewriting, grammar, citation, summarization, and plagiarism workflows, not as a research engine.
- Affiliate Program QuillBot runs an affiliate program through PartnerStack with 10%-20% commission, a 30-day cookie window, cross-device tracking, and unique URLs for approved partners.
Full review notes Long-form details, FAQ, and source history
QuillBot, a Learneo, Inc. business, is an AI paraphrasing and writing suite. Built around a core paraphraser powered by QuillBot’s proprietary models, it bundles grammar checking, AI detection, humanizing, summarization, Co-Writer, citation generation, plagiarism prevention, and translation in one account.
QuillBot’s current Premium page says it is trusted by over 35 million writers worldwide, while the PartnerStack program listing describes nearly 30 million monthly active users. Course Hero acquired QuillBot in 2021; the current footer identifies QuillBot as a Learneo, Inc. business.
System Verdict
Pick QuillBot if the task starts with existing text. Nine paraphrase modes (Standard, Fluency, Formal, Academic, Simple, Creative, Expand, Shorten, Custom) plus the word-by-word flipper give granular control that Grammarly and Wordtune do not offer.
Skip it for zero-to-one drafting. QuillBot transforms text; it does not generate from a blank prompt. Writers who need an essay, blog post, or marketing brief from scratch belong on ChatGPT or Claude.
Who pays which tier: Free for casual paraphrasing (125-word cap per request), US annual Premium at $8.33/mo for unlimited paraphrasing, nine modes, AI Detector, Humanizer, plagiarism prevention, Co-Writer, and higher summary limits; verify localized checkout pricing before buying.
Key Facts
| Audience signal | 35M+ writers worldwide; PartnerStack lists nearly 30M monthly active users |
| Parent company | Learneo, Inc. (Course Hero acquired QuillBot in 2021) |
| Paraphrase modes | 9 (Standard, Fluency, Formal, Academic, Simple, Creative, Expand, Shorten, Custom) |
| Co-Writer | Integrated workspace for paraphrase, summarize, cite, and grammar in one doc |
| Plagiarism scan | Premium only · 25,000 words/month |
| Summarizer | Free tier up to 1,200 words · Premium up to 6,000 words plus custom summaries |
| Extensions | Chrome, Edge, Word, Google Docs |
| Refund policy | 3-day money-back guarantee on Premium |
Every data point above was verified against vendor documentation on 2026-06-25. See Sources.
Recent Changes
- 2026-06-25: Rechecked Premium, upgrade, pricing FAQ, and affiliate pages. Pricing remains region-rendered, so the recommendation keeps the US annual $8.33/mo anchor and tells buyers to verify localized checkout before paying.
What it actually is
One rewriting suite accessed through a web app, desktop/mobile apps, browser extensions, and document add-ins. The paraphraser is the hub; grammar check, AI Detector, Humanizer, summarizer, Co-Writer, citation generator, and plagiarism prevention run against the same input.
The synonym slider sets rewrite intensity. The word flipper cycles alternatives for each highlighted change. Free users get Standard and Fluency modes with a 125-word cap per request; Premium unlocks nine modes, unlimited paraphrasing, unlimited AI Detector, unlimited Humanizer, 25,000 plagiarism-check words per month, and higher summary limits.
The moat is speed plus price. US annual Premium at $8.33/mo is a low-friction upgrade for students and everyday writers who primarily need to transform existing text rather than generate new drafts from scratch, but QuillBot localizes pricing by region.
When to pick QuillBot
- ESL writers refining phrasing. Academic and Formal modes shift tone without wholesale rewrites. Fluency mode fixes naturalness fast.
- Students paraphrasing sources. Word flipper plus synonym slider gives sentence-level control the assignment requires. Citation generator covers APA, MLA, Chicago.
- Writers rewriting existing text for a new audience. Simple mode for accessibility, Creative for variety, Shorten for tight space constraints.
- Budget-conscious individual users. The US $8.33/mo annual Premium price is a low-friction upgrade for heavy paraphrasing and proofreading use; localized checkout prices can differ.
- Quick summaries of long documents. The summarizer handles up to 1,200 words free and runs unlimited on Premium.
When to pick something else
- Generating content from a prompt: ChatGPT or Claude. QuillBot cannot write from scratch.
- Inline grammar and tone across the browser: Grammarly. Broader coverage and stronger rule-based checks.
- Voice-preserving sentence rewrites: Wordtune. Better at keeping the writer’s tone intact versus QuillBot’s mode-based transformations.
- Marketing team brand voice: Jasper. QuillBot has no brand voice or team workflow layer.
- Fiction and creative prose: Sudowrite. Fiction workflow and Muse model outpace generic paraphrase for narrative work.
Pricing
Subscription pricing via quillbot.com/premium:
| Plan | Price | Key Features |
|---|---|---|
| Free | $0 | 125-word cap per paraphrase · Standard and Fluency modes · basic grammar · Humanizer up to 125 words, 6 uses/day · basic summaries · limited AI Detector |
| Premium Annual | $8.33/mo billed annually in US checkout; localized prices vary | Unlimited paraphrasing · 9 modes · advanced grammar · unlimited AI Detector · unlimited Humanizer · plagiarism prevention · custom summaries · 25,000 plagiarism-check words/month |
| Premium Monthly / Quarterly | Varies by region and checkout state | QuillBot’s Help Center says monthly and quarterly options exist; verify the live checkout for the current local price before buying |
| Team Plan | Volume / team path | Team usage metrics · user management · centralized billing · data control · priority support |
Prices verified 2026-06-25 via quillbot.com/premium, quillbot.com/upgrade, and QuillBot’s pricing FAQ. Check the live checkout for current monthly, quarterly, regional, and team pricing before purchase.
Against the alternatives
| QuillBot | Wordtune | Grammarly | |
|---|---|---|---|
| Pricing posture | Budget annual Premium | Rewrite-focused subscription | Broader editing suite |
| Paraphrase modes | 9 | 7 (rewrite styles) | Rewrite via GrammarlyGO |
| Voice preservation | Mode-dependent | Strongest | Mid |
| Plagiarism scan | 25,000 words/mo on Premium | Not the core pitch | Dedicated originality features |
| Summarizer | Yes | Yes (Plus+) | Via GrammarlyGO |
| Citation generator | Yes | No | No |
| Browser inline coverage | Extension and add-ins | Extension | Broad browser coverage |
| Best viewed as | Mode-based paraphrase suite | Voice-preserving rewriter | Inline writing layer |
Failure modes
- No generation from a blank prompt. QuillBot needs source text. Users mistaking it for an LLM chatbot get no output until they paste existing content.
- Creative mode shifts meaning. High-aggression rewrites change intent often enough that every output needs human review, especially on academic or technical source material.
- AI-detection exposure. University AI-detection tooling flags QuillBot paraphrases regularly. Institutional policies ban the tool on graded work; verify before use.
- Plagiarism scan capped at 25,000 words per month. Heavy academic users can exhaust the cap quickly. Turnitin or dedicated plagiarism tools cover higher volume.
- Grammar checker lags dedicated tools. Catches basic errors but misses stylistic issues Grammarly flags. Treat it as a second-pass check, not the primary editor.
- Free tier 125-word cap pushes upgrades. Any document longer than a paragraph hits the limit. The tier is a trial surface, not a working tool.
- Translator and citation generator are thin. Both features work but trail dedicated tools on edge cases. Use for convenience, not authority.
Methodology
This page was produced by the aipedia.wiki editorial pipeline, an automated system that ingests vendor documentation, verifies pricing and model details against primary sources, and generates the editorial analysis you are reading. No individual human wrote this review. Scoring follows the four-dimension rubric at /about/scoring/ (Utility x Value x Moat x Longevity, unweighted average). Last verified 2026-06-25 against quillbot.com/premium, QuillBot’s Help Center, QuillBot’s affiliate page, and PartnerStack’s QuillBot listing.
FAQ
Is QuillBot free? Yes. The free tier covers 125-word paraphrases in Standard and Fluency modes, basic grammar, basic summaries, limited AI Detector access, and limited Humanizer use. US annual Premium can show $8.33/mo billed annually, while QuillBot says checkout pricing varies by region; Premium unlocks unlimited paraphrasing, nine modes, advanced grammar, unlimited AI Detector, unlimited Humanizer, custom summaries, and plagiarism prevention (quillbot.com/premium).
What is QuillBot Co-Writer? A workspace that combines paraphrase, summarize, grammar, and citation tools in one document editor. Free and paid users access it; Premium removes word caps and unlocks all paraphrase modes inside the workspace.
Can schools detect QuillBot output? Yes. Mainstream AI-detection tools flag QuillBot paraphrases at high rates. Many universities classify AI-assisted paraphrasing as an academic integrity violation. Verify institutional policy before using on graded work.
QuillBot vs Grammarly? QuillBot transforms existing text through nine paraphrase modes and a word flipper. Grammarly catches grammar, spelling, tone, and clarity inline across the browser. Most writers who use both run Grammarly as the always-on editor and reach for QuillBot when they need to rewrite a specific passage.
QuillBot vs ChatGPT for paraphrasing? QuillBot gives mode-based controls and a word flipper that cycles alternatives per change. ChatGPT paraphrases through free-form prompts and generates from scratch. Writers who already have text and want targeted transformations get faster output from QuillBot; writers who need flexibility or generation stay on ChatGPT.
Does AiPedia have a QuillBot affiliate link? Yes. QuillBot’s affiliate page says the program uses PartnerStack, 30-day cookie tracking, and unique URLs for approved partners. AiPedia added an approved QuillBot tracking link on 2026-05-17. Affiliate status does not affect the rating or recommendation.
Sources
- QuillBot Premium: Current Premium annual pricing signal and Free/Premium feature differences
- QuillBot Premium pricing help: Monthly, quarterly, annual, and regional checkout caveats
- QuillBot Affiliate Program: Affiliate commission range, cookie window, PartnerStack tracking, and approval flow
- PartnerStack QuillBot listing: Offer structure and monthly-active-user claim
- Course Hero acquires QuillBot (TechCrunch, 2021): Ownership history
Related
- Category: AI Writing
- Comparisons: Grammarly vs QuillBot · QuillBot vs Wordtune
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According to aipedia.wiki Editorial at aipedia.wiki (https://aipedia.wiki/tools/quillbot/) aipedia.wiki Editorial. (2026). QuillBot: Editorial Review. aipedia.wiki. Retrieved July 2, 2026, from https://aipedia.wiki/tools/quillbot/ aipedia.wiki Editorial. "QuillBot: Editorial Review." aipedia.wiki, 2026, https://aipedia.wiki/tools/quillbot/. Accessed July 2, 2026. aipedia.wiki Editorial. 2026. "QuillBot: Editorial Review." aipedia.wiki. https://aipedia.wiki/tools/quillbot/. @misc{quillbot-editorial-review-2026,
author = {{aipedia.wiki Editorial}},
title = {QuillBot: Editorial Review},
year = {2026},
publisher = {aipedia.wiki},
url = {https://aipedia.wiki/tools/quillbot/},
note = {Accessed: 2026-07-02}
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