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Grammarly vs QuillBot

Which AI tool is better for you in 2026? A detailed feature-by-feature comparison.

Our Verdict

Grammarly wins overall with a 4.5/5 rating

Grammarly edges ahead thanks to: works everywhere via browser extension and integrations. However, QuillBot is better if you need best-in-class paraphrasing with multiple style modes.

Grammarly vs QuillBot: Side-by-Side

FeatureGrammarlyWinnerQuillBot
Rating4.5/54.1/5
Starting PriceFree (Pro from $12/mo)Free (Pro from $10/mo)
Free TierYesYes
Features8 features8 features
Key StrengthWorks everywhere via browser extension and integrationsBest-in-class paraphrasing with multiple style modes
Main WeaknessGenerative AI features are less powerful than dedicated toolsFree tier has strict word limits for paraphrasing
Best Forwriting, productivitywriting

The Key Differences

When diving into the world of AI writing assistance, Grammarly and QuillBot both stand out as prominent tools, each offering unique strengths that cater to different audience needs. However, their core focuses create distinct experiences: Grammarly excels as a comprehensive writing assistant focusing on grammar, tone, and clarity, while QuillBot specializes in text paraphrasing and rewriting. Understanding these key differences is crucial to selecting the tool that aligns with your specific writing goals.

Grammarly is renowned for its robust grammar and style correction capabilities, offering a suite of tools that extend beyond just fixing typos. Its tone detection and clarity adjustments make it invaluable for professional communication. QuillBot, on the other hand, shines with its specialized paraphrasing capabilities, providing multiple modes such as fluency and creativity. This makes it especially appealing to students and content creators who need to rework existing content efficiently.

Feature-by-Feature Breakdown

Grammarly Features

  • Real-time Grammar and Spelling Correction: Grammarly's ultra-efficient algorithm quickly spots errors as you type, providing immediate corrections that help improve writing skills over time.
  • Tone Detection and Adjustment Suggestions: This feature ensures your writing remains consistent with the intended voice and audience expectations, an asset for both formal and informal communication.
  • Clarity and Conciseness Improvements: Grammarly helps streamline your writing, removing unnecessary words and enhancing readability.
  • Plagiarism Detection: Essential for academic and business writers, Grammarly offers a reliable tool for checking content originality.
  • Generative AI Writing Assistance: While not as powerful as dedicated content generators, Grammarly's AI features can help brainstorm and draft content.
  • Integration and Accessibility: Through browser extensions, desktop, and mobile apps, Grammarly integrates seamlessly with platforms like Microsoft Office and Google Docs, ensuring consistent writing support.

QuillBot Features

  • AI-powered Paraphrasing and Rewriting: QuillBot's core strength lies here, offering modes from fluency to creativity to adjust the rewriting style according to your needs.
  • Grammar Checker and Corrector: While not as advanced as Grammarly, QuillBot provides a satisfactory grammar checking tool in its suite.
  • Summarizer for Long Documents: Ideal for students and researchers, it distills lengthy texts into concise summaries.
  • Citation Generator for Academic Writing: Supports creation of accurate citations, valuable for scholarly writing.
  • Language Translator: With support for over 30 languages, QuillBot serves a global audience aiming to refine content across different languages.
  • Co-Writer for AI-assisted Drafting: Facilitates drafting while integrating paraphrasing and summarization features.

Pricing: Which Gives Better Value?

In terms of pricing, QuillBot offers a more affordable plan, starting at $10 per month for the Premium version, compared to Grammarly's $12 per month for similar features. While both tools provide a free tier, QuillBot's free version has strict word limits for paraphrasing, making it somewhat restrictive for thorough tasks. Grammarly's free tier covers basic writing needs generously but emphasizes its premium features for a comprehensive experience.

For larger teams, QuillBot's Team plan at $8 per month offers a slight edge in cost-effectiveness over Grammarly's Business plan at $15 per month.

Performance and Output Quality

When it comes to performance and output quality, the choice between Grammarly and QuillBot heavily depends on your writing focus:

  • Grammarly's Superior Grammar Checks: It is best known for its highly accurate suggestions regarding grammar and style. It proactively corrects errors and enhances readability, which is ideal for those seeking impeccable English writing.
  • QuillBot’s Paraphrasing Versatility: Delivers top-notch paraphrasing capabilities, accommodating different tones and styles. While the paraphrased output may require minor manual adjustments, its efficiency in rewording text remains unmatched.

Grammarly tends to offer comprehensive writing improvements, but can occasionally be overly pedantic with style suggestions, which might burden users preferring a relaxed tone. Meanwhile, QuillBot excels in providing quick paraphrasing but may fall short in generating long-form content or complex documents.

Choose Grammarly If...

  • You need an all-encompassing writing assistant that provides real-time grammar and style corrections.
  • Tone consistency and clarity are paramount in your writing.
  • A tool that integrates seamlessly across platforms such as Google Docs, Microsoft Office, and browsers is preferred.
  • The added value of plagiarism detection is crucial.
  • You benefit from generative AI features for drafting simple content.

Choose QuillBot If...

  • Paraphrasing and rewriting are the primary tasks, especially if you deal with existing text.
  • You want a cost-effective tool focusing on specific tasks like summarization and citation generation for academic purposes.
  • You're looking for a lightweight tool that's fast and integrates well with your writing platforms.
  • Language support beyond English is necessary for your writing projects.
  • The free tier's limitations fit within your scope for quick, less demanding rewording tasks.

Final Verdict

In the comparison of Grammarly vs QuillBot, both tools provide outstanding features suited to different needs. If your priority is grammatical precision, tone modulation, and comprehensive writing support across various platforms, Grammarly stands out as the ideal choice despite its slightly higher cost. On the other hand, if you are primarily interested in paraphrasing or reworking existing content with a focus on academic writing, QuillBot's versatile paraphrasing and cost-efficient pricing make it a compelling tool.

Ultimately, the decision between Grammarly and QuillBot hinges on your specific writing objectives. Whether you lean towards the sophisticated corrections of Grammarly or the paraphrasing prowess of QuillBot, both instruments are excellent allies in the domain of AI-assisted writing.

Feature Comparison

Grammarly Features

  • Real-time grammar and spelling correction
  • Tone detection and adjustment suggestions
  • Clarity and conciseness improvements
  • Plagiarism detection
  • Generative AI writing assistance
  • Browser extension for all websites
  • Desktop and mobile keyboard apps
  • Integration with Microsoft Office and Google Docs

QuillBot Features

  • AI-powered paraphrasing with multiple modes
  • Grammar checker and corrector
  • Plagiarism detection
  • Summarizer for long documents
  • Citation generator for academic writing
  • Chrome extension and Word add-in
  • Translator supporting 30+ languages
  • Co-Writer for AI-assisted drafting

Pros & Cons

Grammarly

Pros
  • + Works everywhere via browser extension and integrations
  • + Highly accurate grammar and style suggestions
  • + Generous free tier covers basic writing needs
  • + Excellent tone and clarity feedback
  • + Trusted by millions with a proven track record
Cons
  • - Generative AI features are less powerful than dedicated tools
  • - Premium features feel essential, making free tier limited
  • - Can be overly aggressive with style suggestions
  • - Desktop app can occasionally slow down typing

QuillBot

Pros
  • + Best-in-class paraphrasing with multiple style modes
  • + Free tier is useful for basic rewriting tasks
  • + Excellent for academic and student use
  • + Lightweight and fast compared to heavier AI tools
  • + Good browser extension and integrations
Cons
  • - Free tier has strict word limits for paraphrasing
  • - Not designed for long-form content generation
  • - Paraphrased output sometimes needs manual polish
  • - Limited features compared to full AI writing platforms

Grammarly Pricing

Free

Free
  • Basic grammar and spelling
  • Tone detection
  • Browser extension
Get Started Free
Popular

Premium

$12/mo
  • Advanced grammar
  • Clarity rewrites
  • Tone adjustments
  • Plagiarism detection
Start Free Trial

Business

$15/mo
  • Everything in Premium
  • Brand tones
  • Style guides
  • Admin panel
  • SAML SSO
Start Free Trial

Enterprise

Custom
  • Custom deployment
  • Advanced security
  • Dedicated support
  • Analytics dashboard
Contact Sales

QuillBot Pricing

Free

Free
  • 125-word paraphrase limit
  • 3 synonym options
  • 2 writing modes
Get Started Free
Popular

Premium

$10/mo
  • Unlimited paraphrasing
  • All writing modes
  • Plagiarism checker
  • Tone detection
Start Free Trial

Team

$8/mo
  • Everything in Premium
  • Team billing
  • Priority support
  • Per-user pricing
Start Free Trial

When to Choose Grammarly

Choose Grammarly if you prioritize works everywhere via browser extension and integrations. It's particularly strong for writing and productivity use cases. Plus, you can get started with a free tier before committing.

When to Choose QuillBot

Choose QuillBot if you need best-in-class paraphrasing with multiple style modes. It excels in writing scenarios. It also offers a free tier to test before upgrading.

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