Grammarly vs Runway
A detailed comparison to help you choose the right AI tool for your needs.
Our Pick
Grammarly
Grammarly edges out Runway Gen-3 with superior overall performance and features that make it the better choice for most users.
Try GrammarlyFeature Comparison
Feature
Grammarly
Runway
Ratings
Overall Rating
4.6
4.5
Coding
-
-
Writing
4.8
-
Reasoning
4.0
-
Speed
5.0
4.0
Value
4.5
4.3
Pricing
Monthly Price
$12
$15
Free Tier
Input (per 1M tokens)
-
-
Output (per 1M tokens)
-
-
Features
Context Window
50K
-
Vision/Images
Audio
Video
Code Generation
AI Agents
Grammarly
Pros
- Works everywhere (browser, desktop, mobile)
- Excellent grammar and spelling
- Tone detection
- Plagiarism checker
- GrammarlyGO AI assistant
Cons
- Not for creative writing
- Premium features require subscription
- Can be overly corrective
Runway Gen-3
Pros
- Best video generation quality
- Extensive editing tools
- Text-to-video and image-to-video
- Professional-grade outputs
- Active development
Cons
- Credits run out fast
- Expensive for heavy use
- Generation can be slow
- Learning curve for advanced features
Choose Grammarly if you need:
Grammar checking, professional emails, academic writing
Choose Runway if you need:
Video content creators, marketers, filmmakers
Ready to get started?
Both tools offer free tiers or trials. Try them out and see which one works best for your workflow.