Gemini vs Grammarly
A detailed side-by-side comparison to help you choose.
Gemini
Google's multimodal AI assistant deeply integrated with Google Workspace
Grammarly
AI writing assistant that checks grammar, style, tone, and clarity across all platforms
Our verdict
It's a close call
Gemini (8.0) and Grammarly (8.0) are virtually tied. Your best pick depends on your specific needs and budget.
Feature Comparison
| Feature | Gemini | Grammarly |
|---|---|---|
| API Access | ||
| Plugins / Extensions | ||
| Image Generation | ||
| Code Execution | ||
| File Upload | ||
| Web Search | ||
| Max Context Window | 1M tokens | 16K tokens |
Pricing Comparison
| Tier | Gemini | Grammarly |
|---|---|---|
| Free | Free Gemini 3.6 Flash (varying Gemini 3.1 Pro), 15 GB storage | Free Basic grammar & spelling, 100 AI prompts/month |
| Google AI Plus | $4.99 2x Free limits, 400 GB storage, 200 Flow credits, video generation | $30 2,000 AI prompts/month, full rewrites, plagiarism & AI detection; $12/mo billed annually |
| Google AI Pro | $19.99 Gemini 3.1 Pro at 1M-token context, 4x Free limits, 1,000 Flow credits, 5 TB storage | $40 Email + writing suite, style guides, analytics; $33/member/mo billed annually |
| Google AI Ultra 5x | $99.99 5x Pro limits; Deep Think, Gemini Spark, Project Mariner; 20 TB storage | Free Custom pricing; SSO/SAML, SCIM, BYOK, dedicated support |
| Google AI Ultra 20x | $199.99 20x Pro limits; highest access level; 30 TB storage | — |
Score Breakdown
| Dimension | Gemini | Grammarly |
|---|---|---|
| Ease of Use | 8.0 | 10.0 |
| Features | 9.0 | 7.0 |
| Value for Money | 8.0 | 7.0 |
| Support | 7.0 | 8.0 |
| Overall | 8.0 | 8.0 |
Pros & Cons
Gemini
Pros
- +Largest context window at 1M tokens (Advanced tier)
- +Seamless Google Workspace and Gmail integration
- +Built-in Google Search for real-time information
- +Strong multimodal capabilities with images and video
Cons
- −Quality can be inconsistent compared to ChatGPT and Claude
- −Advanced features require Google One subscription
- −Less reliable for complex coding tasks
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