WhichAI

Grammarly vs Runway: Which Is Better in 2026?

A comprehensive comparison to help you decide between Grammarly and Runway.

FeatureGrammarlyRunway
PricingFree / $12/mo PremiumFree / $12-30/mo
Free PlanYesYes
Best ForAnyone who writes, especially professionalsVideo creators, content marketers, and creative professionals
Pros
  • Catches grammar and spelling errors
  • Tone detection features
  • Browser extension works everywhere
  • Good free tier
  • Multiple AI creative tools in one platform
  • Video generation and editing
  • Intuitive web-based interface
  • Good free tier
Cons
  • Sometimes overly aggressive suggestions
  • Premium required for tone features
  • Can slow down browser
  • Privacy concerns about data collection
  • Video generation is beta
  • Limited 4K export on lower tiers
  • Processing times can be slow
  • Subscription can get expensive

When to Choose Grammarly

  • Catches grammar and spelling errors
  • Tone detection features
  • Browser extension works everywhere
Try Grammarly Today

When to Choose Runway

  • Multiple AI creative tools in one platform
  • Video generation and editing
  • Intuitive web-based interface
Try Runway Today