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Grammarly vs Claude

AI Writing tools comparison · Updated 2026

Choosing between Grammarly and Claude? Both are popular AI Writing tools. Grammarly starts at Freemium and focuses on Grammar and spell check. Claude starts at Freemium and specializes in Long document analysis. Here's a detailed side-by-side comparison to help you decide.

At a Glance

Grammarly Claude
Category AI Writing AI Writing
Pricing freemium freemium
Starting Price Freemium Freemium
Best For grammar, writing-assistant, proofreading ai-assistant, writing, coding
Features 6 listed 6 listed

Grammarly

AI writing assistant for grammar, clarity, tone, and style improvements.

AI Writing freemium
VS

Claude

Anthropic's AI assistant for analysis, writing, and coding with 200K context.

AI Writing freemium

Feature Comparison

Grammarly Claude
Grammar and spell check Long document analysis
Tone detection Code generation
Plagiarism checker Creative writing
Style suggestions Research synthesis
Browser extension Vision capabilities
Generative AI writing Artifacts

Pricing Comparison

Grammarly

freemium

Free basic grammar checking. Premium $12/mo. Business $15/member/mo.

Claude

freemium

Free tier with Claude 3 Haiku. Pro $20/mo for Claude 3.5 Sonnet/Opus.

Pros & Cons

Grammarly

Pros
  • + Works across all platforms
  • + Excellent grammar detection
  • + Intuitive interface
  • + Real-time suggestions
Cons
  • Premium is expensive for individuals
  • Occasional false positives
  • Limited free tier features

Claude

Pros
  • + Excellent reasoning
  • + Handles very long documents
  • + Safety-focused
  • + Great at nuance
Cons
  • No web browsing on free tier
  • Smaller plugin ecosystem
  • Rate limits on free plan

The Verdict

Both Grammarly and Claude are strong AI Writing tools. Grammarly stands out for Works across all platforms, making it ideal if that's your priority. Claude excels at Excellent reasoning, which may be more important for your workflow.

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