Grammarly vs Notion AI
vs 
A detailed comparison of Grammarly and Notion AI in 2026 — features, pricing, and which tool is right for you.
| Grammarly | Notion AI | |
|---|---|---|
| Rating | ★ 4.5/5 | ★ 4.2/5 |
| Pricing type | Freemium | Freemium |
| Starting price | $12/mo | $10/mo |
| Category | AI Writing & Content | AI Productivity |
| Founded | 2009 | 2023 |
| Key features | Real-time grammar correction, Tone adjustment, GrammarlyGO (generative) | Write & summarize inside Notion, Q&A across your whole workspace, Auto-fill databases |
Grammarly
AI grammar and writing assistant
Grammarly checks grammar, spelling, and tone, and now includes GrammarlyGO for AI-generated and rewritten content. It works everywhere you type.
Pros- Works everywhere (web, apps, extensions)
- Excellent error correction
- Useful free plan
- Primarily English-focused
- Full feature set requires Premium
Notion AI
AI built right into your Notion workspace
Notion AI is built into Notion, helping you write, summarize, brainstorm, and search across your entire workspace. Handy if you already use Notion to manage your work.
Pros- Seamlessly integrated with Notion
- Handy for notes and summaries
- Q&A on your own data
- Only useful if you already use Notion
- Extra cost on top of Notion
Grammarly vs Notion AI: Which one should you choose?
If you prioritize works everywhere (web, apps, extensions), Grammarly is worth considering. Conversely, if seamlessly integrated with notion matters more to you, go with Notion AI. Both offer a free trial option, so it is best to try them out yourself before deciding.