Claude vs Grammarly
A detailed side-by-side comparison to help you choose.
Claude
Anthropic's safety-focused AI assistant with large context windows and strong reasoning
Grammarly
AI writing assistant that checks grammar, style, tone, and clarity across all platforms
Our verdict
We recommend Claude
Claude edges ahead with stronger scores in key areas.
Feature Comparison
| Feature | Claude | Grammarly |
|---|---|---|
| API Access | ||
| Plugins / Extensions | ||
| Image Generation | ||
| Code Execution | ||
| File Upload | ||
| Web Search | ||
| Max Context Window | 200K tokens | 16K tokens |
Pricing Comparison
| Tier | Claude | Grammarly |
|---|---|---|
| Free | Free Limited daily usage; everyday questions only (no Claude Code, no Claude Cowork) | Free Basic grammar & spelling, 100 AI prompts/month |
| Pro | $20 5x more usage than Free per 5-hour session; Claude Code & Claude Cowork; $17/mo if billed annually ($200 upfront) | $30 2,000 AI prompts/month, full rewrites, plagiarism & AI detection; $12/mo billed annually |
| Max 5x | $100 5x Pro usage per 5-hour session; higher output limits; early access to advanced features | $40 Email + writing suite, style guides, analytics; $33/member/mo billed annually |
| Max 20x | $200 20x Pro usage; highest output limits; priority access at high traffic times | Free Custom pricing; SSO/SAML, SCIM, BYOK, dedicated support |
| Team | $25 Standard seat: more usage than Pro, admin controls; $20/seat if billed annually | — |
Score Breakdown
| Dimension | Claude | Grammarly |
|---|---|---|
| Ease of Use | 9.0 | 10.0 |
| Features | 9.0 | 7.0 |
| Value for Money | 8.0 | 7.0 |
| Support | 8.0 | 8.0 |
| Overall | 8.5 | 8.0 |
Pros & Cons
Claude
Pros
- +Largest context window among major AI assistants (200K tokens)
- +Excellent at nuanced writing and long-form documents
- +Strong safety and honesty principles reduce hallucinations
- +Outstanding code generation and review quality
Cons
- −No image generation capability
- −Fewer third-party integrations than ChatGPT
- −Free tier limits can be hit quickly with heavy use
Grammarly
Pros
- +Works everywhere: browser, Word, Google Docs, Outlook
- +Real-time suggestions don't interrupt your writing flow
- +Tone detection helps match the right voice for your audience
- +Plagiarism checker integrated into premium plans
Cons
- −Premium plan is expensive relative to the feature set
- −Not a full AI writing assistant — focused on editing, not generation
- −Free tier is quite limited compared to competitors