Grammarly vs Writer
A side-by-side comparison of capabilities, autonomy, integrations, and pricing to help you choose.
Short answer: choose Grammarly if you want ai writing assistant that checks, rewrites, and drafts across 1m+ apps and sites (Copilot, freemium); choose Writer if you want enterprise ai platform for agentic content and workflow automation (Supervised agent, enterprise).
| Grammarly | Writer | |
|---|---|---|
| What it is | AI writing assistant that checks, rewrites, and drafts across 1M+ apps and sites | Enterprise AI platform for agentic content and workflow automation |
| Type | product-with-agents | product-with-agents |
| Autonomy | Copilot | Supervised agent |
| Pricing | freemium · $12/member/mo (Pro, billed annually) | enterprise · $29/user/mo (Starter, billed annually) |
| Best for | consumers, smb, mid-market, enterprise | enterprise, mid-market |
| Deployment | saas, api | saas, api |
| Modalities | text, browser, email, api | text, api |
| Models | proprietary, model-agnostic | proprietary |
| Protocols | rest-api | rest-api, function-calling |
| Integrations | Gmail, Google Docs, Microsoft Word, Microsoft Outlook, Slack, Chrome | Gmail, Slack, Google Drive, Microsoft SharePoint, Google Calendar, Gong |
| Capabilities | 5 documented | 4 documented |
Grammarly
- +Works almost everywhere people write (1M+ apps and websites, browsers, email, and desktop apps)
- +Strong free tier with usable everyday grammar, spelling, and tone checking
- +Combines deterministic proofreading with generative drafting and task-specific writing agents in one tool
- -Core behavior is inline suggestions, not autonomous action; the 'agents' are supervised and task-scoped
- -Generative and detection features (rewrites, plagiarism, AI detection) are gated behind paid tiers
Writer
- +In-house Palmyra LLMs plus graph-based RAG and guardrails give enterprises strong control and compliance posture
- +Goes beyond content generation to building and triggering custom agents and multi-step workflows
- +Deep enterprise integrations (Slack, Gmail, Drive, SharePoint, Gong) with event-based automation
- -Enterprise-oriented; large deployments run into six-figure annual contracts
- -Overkill for individuals or small teams that just need a writing assistant
Which should you choose?
Grammarly is ai writing assistant that checks, rewrites, and drafts across 1m+ apps and sites, best for consumers, smb, mid-market, enterprise. Writer is enterprise ai platform for agentic content and workflow automation, best for enterprise, mid-market. The right choice depends on the autonomy level you want, your existing integrations, and your budget, all compared above.