AICompare

Grammarly vs Moonbeam

Head-to-head comparison — updated April 2026

Grammarly

Grammarly

AI writing and grammar checker

Free plan$12/mo★ 4.7✓ Higher rated✓ Cheaper
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VS
Moonbeam

Moonbeam

AI long-form content writer

Free plan$49/mo★ 4.5
Try Moonbeam →

Our Verdict

Choose Grammarly for general writing correction, editing, and team workflows. Choose Moonbeam if you primarily need AI assistance generating long-form content like blog posts or articles.

Why Grammarly?

✓ Lower starting price ($12/mo vs $49/mo)
✓ Higher user rating (4.7/5)
✓ Includes plagiarism detection
✓ Team collaboration features
✓ Browser extension available

Why Moonbeam?

✓ Purpose-built for long-form content creation
✓ Automated outline generation
✓ Custom style guide capabilities

Feature Comparison

FeatureGrammarlyMoonbeam
style guide✓✗
team collab✓✗
tone control✓✗
plagiarism check✓✗
browser extension✓✗
long form✗✓
outline gen✗✓
custom style✗✓

Grammarly Pricing

Free/mo
Paid from $12/mo
Full review →

Moonbeam Pricing

Free/mo
Paid from $49/mo
Full review →

Which Should You Choose?

Both Grammarly and Moonbeam are strong tools in the AI writing space. Grammarly has higher user ratings overall. Choose Grammarly if you value style guide and team collab. Choose Moonbeam if you want to start free.