📖 The AI Tool Bible

Gemini Advanced vs Grammarly

A side-by-side look at pricing, capabilities, pros, cons, and our editorial scores.

 
Gemini Advanced
Writing
Grammarly
Writing
TaglineGoogle's flagship — strong at math, long context, and Workspace integration.Cross-app AI writing assistant that catches errors, rewrites paragraphs, and adjusts tone in the tools you already use.
CategoryWritingWriting
PricingPaid· $20/mo via Google One AI PremiumFreemium· Free; Pro $12/mo annual or $30/mo; Enterprise custom
ModelGemini 2.5 ProProprietary + multi-model
Editorial score9.0 / 10—
Use cases
Workspace integrationmathlong contextresearch
grammar-checktone-adjustmentparagraph-rewriteplagiarism-detectionresume-writingcitation-generation
Pros
  • Excellent Google Workspace integration
  • Very long context window
  • Strong on STEM tasks
  • Cheapest frontier bundle
  • Runs inside almost every app and website with no copy-paste workflow
  • Free tier is genuinely usable for everyday proofreading
  • Enterprise-grade privacy controls and style guides for teams
  • Purpose-built agents (AI detector, humanizer, citations) beyond generic chat
Cons
  • UX still less polished than ChatGPT/Claude
  • Refusals can be inconsistent
  • Limited fine-tuning controls
  • No public generative API for developer integrations
  • Pro is pricey vs. running rewrites through a raw LLM subscription
  • Suggestions can feel formulaic and flatten distinctive voice
  • Closed-source with limited transparency about underlying models
Websitegemini.google.comwww.grammarly.com
Pick Gemini Advanced if
  • ✅ Excellent Google Workspace integration
  • ✅ Very long context window
  • ✅ Strong on STEM tasks
  • ✅ Cheapest frontier bundle
Pick Grammarly if
  • ✅ Runs inside almost every app and website with no copy-paste workflow
  • ✅ Free tier is genuinely usable for everyday proofreading
  • ✅ Enterprise-grade privacy controls and style guides for teams
  • ✅ Purpose-built agents (AI detector, humanizer, citations) beyond generic chat
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