Microsoft 365 Copilot vs Grammarly
Side-by-side comparison of pricing, features, and capabilities — 2026.
VS
Quick Verdict
Best pricing
Grammarly
Grammarly is freemium
Feature Comparison
FeatureMicrosoft 365 CopilotGrammarly
Pricing
Paid
Freemium
Free Plan
Verified
Featured
Categories
Automation, Productivity, Writing
Writing
Key Features Comparison
FeatureMicrosoft 365 CopilotGrammarly
AI in Word, Excel, PowerPoint, Outlook, Teams
Meeting transcription and summaries
Excel data analysis with natural language
PowerPoint design suggestions
Email drafting in Outlook
Microsoft Graph data grounding
Real-time grammar, spelling, and punctuation correction
Tone detector and adjustment suggestions
Generative AI: write emails, documents, and posts from prompts
Clarity improvements to simplify complex sentences
Plagiarism detection against 16B web pages
Works in 500,000+ apps and websites via browser extension
Use Cases Comparison
Use CaseMicrosoft 365 CopilotGrammarly
Drafting Word documents with AI
Analyzing Excel data naturally
Creating PowerPoint presentations
Managing email workload in Outlook
Meeting summaries in Teams
Professional email and workplace communication
Academic writing and essay editing
Content creation and blog writing
Non-native English speakers improving fluency
Team-wide writing consistency and brand voice
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Microsoft 365 Copilot vs Grammarly: Which Should You Choose?
Microsoft 365 Copilot is a paid tool (verified by our team). AI assistant built into Word, Excel, PowerPoint, Teams and Outlook
Grammarly is a freemium tool (verified by our team). AI writing assistant for grammar and style
The right choice depends on your budget and specific needs. Both are listed in Nextool.ai's curated directory. See all Microsoft 365 Copilot alternatives or See all Grammarly alternatives.