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writing

Copy.ai vs Grammarly

A detailed side-by-side comparison to help you choose.

Copy.ai

AI-powered copywriting tool for marketing teams to create on-brand content and automate GTM workflows

7.8Very Good

Grammarly

AI writing assistant that checks grammar, style, tone, and clarity across all platforms

8.0Excellent

Our Verdict

We recommend Grammarly

Both tools are excellent choices, but Grammarly has a slight edge in our overall scoring.

Feature Comparison

FeatureCopy.aiGrammarly
API Access
Plugins / Extensions
Image Generation
Code Execution
File Upload
Web Search
Max Context Window
32K tokens
16K tokens

Pricing Comparison

TierCopy.aiGrammarly
Free
Free

2,000 words/month, 1 user, basic templates

Free

Basic grammar and spelling corrections

Starter
$49

Unlimited words, 1 user, workflows, brand voice

$30

Advanced style, clarity, tone, plagiarism detection

Advanced
$249

5 users, GTM workflows, Salesforce/HubSpot integrations

$25

Per user/month, brand tone, style guide, analytics

Score Breakdown

DimensionCopy.aiGrammarly
Ease of Use8.010.0
Features8.07.0
Value for Money7.07.0
Support8.08.0
Overall7.88.0

Pros & Cons

Copy.ai

Pros

  • +GTM AI platform streamlines entire marketing workflow
  • +Strong brand voice and tone consistency features
  • +Excellent CRM integrations (HubSpot, Salesforce)
  • +Workflows automate repetitive content tasks end-to-end

Cons

  • Starter plan is expensive compared to competitors
  • No image generation capability
  • Steeper learning curve for workflow builder

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

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