Grammarly vs Quillbot
Which AI writing should you pick in 2026? Pricing, agents, plans and use cases, side by side.
FSReviewed May 23, 2026 by Faisal Saleem · no paid placementsPick Quillbot if budget is the priority. The other tool wins on specific features, see the side-by-side below.
- You need Real-time corrections or Generative rewrite, which Quillbot doesn't offer.
- You mostly do email editing or document polishing.
- You want the lower entry price: $4.17/mo vs $12/mo.
- You need 7 rewriting modes or Summarizer, which Grammarly doesn't offer.
- You mostly do paraphrasing or summarizing.
By the numbers
Side by side
| SPEC | ||
|---|---|---|
| Starts at | $12/mo | $4.17/moCHEAPER |
| Pricing model | Freemium | Freemium |
| AI agent | No | No |
| Editor's Pick | No | No |
| Key features | Real-time correctionsGenerative rewriteTone detectorBrowser extension | 7 rewriting modesSummarizerCitation generatorAI detector |
| Best for | Email editingDocument polishingTone adjustmentPlagiarism checks | ParaphrasingSummarizingCitation generationGrammar checking |
| Works with | #grammar#writing#editor | #paraphrase#grammar#summarize |
Plan by plan
- Spelling and grammar fixes
- See writing tone
- 100 AI prompts
- Paraphrase up to 125 words
- Fix basic grammar errors
- 2 paraphrase modes
- Rewrite full sentences
- Adjust writing tone
- Plagiarism & AI detection
- Unlimited paraphrasing
- 9 paraphrase modes + custom
- Advanced grammar checks
- Proactive AI
- BYOK encryption
- SAML SSO, SCIM, audit logs
- All Premium features
- Team usage metrics
- Centralized billing
What each is best for
| USE CASE | ||
|---|---|---|
| Email editing | ||
| Document polishing | ||
| Tone adjustment | ||
| Plagiarism checks | ||
| Paraphrasing | ||
| Summarizing | ||
| Citation generation | ||
| Grammar checking |
Strengths and trade-offs
- Free tier available; paid plans from $12/mo
- Real-time corrections
- Generative rewrite
- Tone detector
- No autonomous agent, handles single prompts, not multi-step workflows
- Competition is strong in this space, see Quillbot for comparison
- Free tier available; paid plans from $4.17/mo
- 7 rewriting modes
- Summarizer
- Citation generator
- No autonomous agent, handles single prompts, not multi-step workflows
- Competition is strong in this space, see Grammarly for comparison
Grammarly vs Quillbot FAQ
Short answers to what people ask most before choosing between these two.
Is Grammarly better than Quillbot?
It depends on your workflow. Grammarly is focused on assistive features, while Quillbot doesn't include an agent. Neither is currently our Editor's Pick, both are credible options. See the side-by-side table above for specifics.
Is Grammarly cheaper than Quillbot?
Quillbot is cheaper. Grammarly starts at $12/mo and Quillbot starts at $4.17/mo, a difference of roughly $7.83 per month at the entry tier.
Does Grammarly have an AI agent?
No, Grammarly is built around assistive features (autocomplete, chat) rather than a true autonomous agent. If agent functionality is a hard requirement, neither tool in this comparison ships one.
Does Quillbot have an AI agent?
No, Quillbot focuses on assistive features rather than agents.
What's the difference between Grammarly and Quillbot?
Both are writing tools. The key differences come down to pricing (Grammarly: Freemium, from $12/mo; Quillbot: Freemium, from $4.17/mo), agent capability (Grammarly: no, Quillbot: no), and feature focus. Use the comparison table above to weigh which axis matters most for your work.
What's a good alternative to Grammarly and Quillbot?
Beyond Grammarly and Quillbot, the strongest alternatives in Writing depend on whether you prioritise price, agent capability, or specific features. See our "Grammarly alternatives" and "Quillbot alternatives" pages for a hand-picked ranking of each.