Claude vs Grammarly
Claude uniquely has 25 features · Grammarly uniquely has 8 features.
| Claude | Grammarly | |
|---|---|---|
| Company | ||
| Founded | 2021 | 2009 |
| HQ | San Francisco, USA | San Francisco, USA |
| AI model | Claude (Fable, Opus, Sonnet, Haiku — Proprietary by Anthropic) | Proprietary |
| User base | Millions+ (exact not publicly stated) | 40 million+ |
| Platforms | Web, iOS, Android, Desktop | Web, Windows, Mac, iOS, Android, Chrome, Safari, Firefox, Edge, MS Office, Google Docs |
| Languages | 25+ | English primary, with fluency support for non-native English speakers |
| Pricing | ||
| Free plan | Yes | Yes |
| Free trial | No | Yes — 7-day free trial for Pro |
| Starting price | $0/mo | $12/mo (Pro plan, billed annually) |
| Enterprise | Custom pricing — contact sales | Custom |
| All plans | FreeFreePro$20MaxFrom $100Team Standard$25Team Premium$125EnterpriseCustom usage | Free$0/moPro$30/moEnterpriseContact Sales |
| Positioning | ||
| Best for | Individuals, developers, teams, and enterprises needing advanced AI assistance for writing, coding, research, and complex reasoning | Individuals, teams, and enterprises seeking AI-powered writing assistance, grammar checking, and tone improvement |
| Differentiator | Claude combines Constitutional AI safety training with powerful reasoning, massive context windows, and a growing suite of agentic tools (Claude Code, Cowork, Design, Science) all under one platform built by Anthropic. | The most widely adopted AI writing assistant, trusted by 40 million users and 50,000 organizations, offering real-time grammar, tone, plagiarism, and AI detection with enterprise-grade security and style guide enforcement. |
| Competitors | ChatGPT, Gemini, Copilot, Perplexity | Hemingway Editor, ProWritingAid, QuillBot, Jasper, Copy.ai, Writer |
| Features | ||
| Claude Code | ✓ | — |
| Claude Cowork | ✓ | — |
| Claude Design | ✓ | — |
| Claude Science | ✓ | — |
| Microsoft 365 Integration | ✓ | — |
| Remote Mcp Connectors | ✓ | — |
| AI Assistant | ✓ | — |
| AI Copywriting | — | ✓ |
| AI Research | — | ✕ |
| Brand Voice | — | Deep — brand tones (1 on Free, unlimited on Enterprise), style guide, knowledge share, snippets |
| Browser Extension | ✓ | — |
| Bulk Generation | — | ✕ |
| Calendar Integration | ✓ | — |
| Content Editor | — | ✓ |
| Document Creation | ✓ | — |
| Email Management | ✓ | — |
| Grammar Style | — | ✓ |
| Image Generation | — | ✕ |
| Long Form Writing | — | ✓ |
| Meeting Summary | ✓ | — |
| Mobile App | ✓ | — |
| Note Taking | ✓ | — |
| Offline Mode | ✕ | — |
| Paraphrasing | — | ✓ |
| Plagiarism Checker | — | Built-in — available on Pro and Enterprise plans |
| Project Management | ✓ | — |
| Research Assistant | ✓ | — |
| SEO Optimization | — | ✕ |
| Short Form Writing | — | ✓ |
| Spreadsheet AI | ✓ | — |
| Task Automation | ✓ | — |
| Team Collaboration | ✓ | — |
| Templates | — | ✕ |
| Integrations | ||
| API Access | ✓ | — |
| Browser Extension | ✓ | — |
| Chrome Extension | — | ✓ |
| Google Calendar | ✓ | — |
| Google Docs | — | ✓ |
| Google Drive | ✓ | — |
| Key Integrations | Google Workspace, Slack, Microsoft 365, Microsoft Outlook, Microsoft Excel, AWS, Google Cloud Vertex AI, Microsoft Azure Foundry, remote MCP connectors | Google Docs, Microsoft Office (Word), Chrome, Safari, Firefox, Edge, Windows desktop app, Mac desktop app, iPhone, iPad, Android, Zendesk (shown in marketing) |
| Microsoft 365 | ✓ | — |
| Slack Integration | ✓ | — |
| Wordpress | — | ✕ |