Grammarly vs Sudowrite
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 Sudowrite 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 Sudowrite doesn't offer.
- You mostly do email editing or document polishing.
- You want the lower entry price: $10/mo vs $12/mo.
- You need Story Engine or Describe tool, which Grammarly doesn't offer.
- You mostly do novel drafting or worldbuilding.
By the numbers
Side by side
| SPEC | ||
|---|---|---|
| Starts at | $12/mo | $10/moCHEAPER |
| Pricing model | Freemium | Freemium |
| AI agent | No | No |
| Editor's Pick | No | No |
| Key features | Real-time correctionsGenerative rewriteTone detectorBrowser extension | Story EngineDescribe toolBrainstormCanvas |
| Best for | Email editingDocument polishingTone adjustmentPlagiarism checks | Novel draftingWorldbuildingPlot brainstormingScene description |
| Works with | #grammar#writing#editor | #fiction#novel#creative |
Plan by plan
- Spelling and grammar fixes
- See writing tone
- 100 AI prompts
- 225,000 credits/month
- Access to all tools
- EZ Cancel guarantee
- Rewrite full sentences
- Adjust writing tone
- Plagiarism & AI detection
- 1,000,000 credits/month
- Good for novels or screenplay
- Free trial included
- Proactive AI
- BYOK encryption
- SAML SSO, SCIM, audit logs
- 2,000,000 credits/month
- Unused credits rollover 12mo
- All premium tools
- Custom credits
- Team management
- Priority support
What each is best for
| USE CASE | ||
|---|---|---|
| Email editing | ||
| Document polishing | ||
| Tone adjustment | ||
| Plagiarism checks | ||
| Novel drafting | ||
| Worldbuilding | ||
| Plot brainstorming | ||
| Scene description |
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 Sudowrite for comparison
- Free tier available; paid plans from $10/mo
- Story Engine
- Describe tool
- Brainstorm
- No autonomous agent, handles single prompts, not multi-step workflows
- Competition is strong in this space, see Grammarly for comparison
Grammarly vs Sudowrite FAQ
Short answers to what people ask most before choosing between these two.
Is Grammarly better than Sudowrite?
It depends on your workflow. Grammarly is focused on assistive features, while Sudowrite 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 Sudowrite?
Sudowrite is cheaper. Grammarly starts at $12/mo and Sudowrite starts at $10/mo, a difference of roughly $2.00 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 Sudowrite have an AI agent?
No, Sudowrite focuses on assistive features rather than agents.
What's the difference between Grammarly and Sudowrite?
Both are writing tools. The key differences come down to pricing (Grammarly: Freemium, from $12/mo; Sudowrite: Freemium, from $10/mo), agent capability (Grammarly: no, Sudowrite: 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 Sudowrite?
Beyond Grammarly and Sudowrite, the strongest alternatives in Writing depend on whether you prioritise price, agent capability, or specific features. See our "Grammarly alternatives" and "Sudowrite alternatives" pages for a hand-picked ranking of each.