Grammarly vs Notion AI
Two writing AI tools compared on the facts: what each one does, how it charges, and where their capabilities overlap. We track tools, we don't rate them, so there is no winner declared here. The differences below should make the right pick for your use case obvious.
Grammarly
Grammar, style, and generative writing help across your apps
Grammarly checks grammar, spelling, punctuation, and tone, and can rewrite or generate text on demand. It works as a browser extension, desktop app, keyboard, and inside Microsoft Word and Google Docs.
Notion AI
AI assistant built into the Notion workspace
Notion AI is the AI assistant built into Notion. It drafts and edits text, summarizes pages and meetings, and answers questions using the contents of your workspace. Full access is included in Notion's Business and Enterprise plans.
At a glance
Swipe the table sideways to see both tools.
| Grammarly | Notion AI | |
|---|---|---|
| Pricing model | freemium | freemium |
| Website | grammarly.com ↗ | notion.com ↗ |
| Shared capabilities | writing-assistant | |
| Only here | grammar-checker spell-checker tone-detection generative-writing | summarization knowledge-base ai-chat notes |
Capability tags are factual labels we assign when a tool is added; they describe what a tool does, not how well it does it.
Checked against the vendors. Written from each vendor's own site and last re-checked there: Grammarly on July 22, 2026 · Notion AI on July 22, 2026. Vendors change pricing and features without notice, so confirm anything that decides your purchase on the vendor's page.
Key features
Grammarly
- Grammar, spelling, and punctuation checks
- Tone and clarity suggestions
- Generative rewriting and drafting prompts
- Works in the browser, desktop, Word, Google Docs, and mobile
- Team style guides on Business plans
Notion AI
- Generate and rewrite text inside any page
- Summarize documents and meeting notes
- Q&A across your workspace and connected apps
- Translation and tone adjustments
- AI agents for multi-step tasks
What each one does well
Grammarly
- ✓ Catching typos and awkward phrasing across every app you write in
- ✓ Adjusting the tone of an email or message before you send it
- ✓ Team style consistency across many writers
Notion AI
- ✓ Drafting and editing documents where your notes already live
- ✓ Summarizing long pages and meeting transcripts
- ✓ Asking questions across a team wiki or knowledge base
Full fact sheets, FAQs, and discussion links: Grammarly · Notion AI · all writing tools