Claude vs Grammarly
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.
Claude
AI assistant for writing, coding, research, and analysis
Claude is an AI assistant from Anthropic. It handles writing, coding, research, data analysis, and image understanding through a chat interface, with support for file uploads and long documents. It is available on the web, in desktop and mobile apps, and through an API.
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.
At a glance
Swipe the table sideways to see both tools.
| Claude | Grammarly | |
|---|---|---|
| Price | Free plan, then $20/mo Free Free · Pro $20/mo · Team $25/mo · Max $100/mo | Free plan, then $30/mo Free Free · Pro $30/mo · Enterprise Custom |
| Pricing model | freemium | freemium |
| Website | claude.ai ↗ | grammarly.com ↗ |
| Shared capabilities | generative-writing | |
| Only here | ai-chat agentic-coding research documents ai-agents | grammar-checker spell-checker writing-assistant tone-detection |
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: Claude on July 22, 2026 · Grammarly 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
Claude
- Chat with document, image, and code uploads
- Writing, editing, and summarization
- Code generation and debugging, plus agentic coding with Claude Code
- Web search with cited answers
- Artifacts: interactive documents and apps built in-chat
- Projects with shared context for long-running work
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
What each one does well
Claude
- ✓ Drafting and editing long-form writing
- ✓ Coding, from quick scripts to multi-file work with Claude Code
- ✓ Digesting long documents, PDFs, and spreadsheets
- ✓ Research questions with cited web sources
- ✓ Analyzing images, screenshots, and charts
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
Full fact sheets, FAQs, and discussion links: Claude · Grammarly · all writing tools