Copilot vs Grammarly vs Notion AI
Three productivity and writing assistants compared: positioning, ecosystem, writing quality, and generation strength.
locale: “en”
Key takeaways
- Copilot: Best for Office/code/Windows workflows; strong on meetings, slides, and Excel formulas.
- Grammarly: Best-in-class grammar and style checking; limited generation but unbeatable for English correctness.
- Notion AI: Easiest in-doc generation and organization; biggest win for note/knowledge-base users.
Core comparison
| Dimension | Copilot | Grammarly | Notion AI |
|---|---|---|---|
| Positioning | Office/code/system assistant | English grammar and style checker | In-doc generation and organization |
| Ecosystem | Office, Teams, Windows, GitHub | Browser/Office add-ins, standalone editor | Notion docs and databases |
| Generation strength | High: multimodal, meeting notes, formulas | Low: focused on correction | High: structured drafting and summarizing |
| Writing quality | Good for workplace/email tone | Excellent grammar/style precision | Strong for structure and rewrites |
| Cost | Included with M365 or GitHub paid plans | Free and premium tiers | Add-on to Notion subscription |
Who should use which
- Office-heavy and meetings: Copilot (Teams summaries, PPT drafts, Excel formulas).
- English writers/students: Grammarly (corrections, style suggestions, plagiarism checks).
- Knowledge-base users: Notion AI (organize notes, generate outlines, meeting minutes).
Selection tips
- Everyday emails/docs: Grammarly.
- Need generation plus app actions: Copilot.
- Notes and project collaboration: Notion AI.