CompareStack/Mistral AI vs Grammarly
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Updated March 2026 · Independent Analysis

Mistral AIvsGrammarly

Mistral AI is free; Grammarly starts at $12/mo. Grammarly is rated higher at 4.7/5 vs Mistral AI's 4.5/5.

M
Mistral AI

European AI company offering powerful open-source and commercial language models with a strong focus on efficiency and data sovereignty.

★ 4.5/5Founded 2023500K+ users
Try Mistral AI Free →
G
Grammarly

AI writing assistant for grammar, clarity, and tone — works across all your apps.

★ 4.7/5Founded 200930M+ users
Try Grammarly Free →

⚡ Quick Stats

⭐
Avg Rating
Mistral AI4.5/5
Grammarly4.7/5
🏆 Grammarly wins
💰
Starting Price
Mistral AIFree
Grammarly$12/mo
🏆 Mistral AI wins
🔧
Features
Mistral AI12
Grammarly8
🏆 Mistral AI wins
🎁
Free Plan
Mistral AIYes ✓
GrammarlyYes ✓

📊 Ratings Breakdown

M

Mistral AI

4.5/5 avg
G2 Score4.5/5
Capterra Score4.4/5
Overall Avg4.45/5
G

Grammarly

4.7/5 avg
G2 Score4.7/5
Capterra Score4.7/5
Overall Avg4.7/5

⚡ Quick Verdict

Independent analysis based on features, pricing, and user ratings

Choose Mistral AI if you need:
  • ✓ Mistral Large/Small/Nemo
  • ✓ Open source models
  • ✓ Function calling
  • ✓ JSON mode
  • ✓ Multimodal (Pixtral)
Try Mistral AI Free →
Choose Grammarly if you need:
  • ✓ Grammar checking
  • ✓ Plagiarism detection
  • ✓ Tone suggestions
  • ✓ Style improvements
  • ✓ Browser extension
Try Grammarly Free →

🔧 Feature Comparison

Mistral AI uniquely offers Mistral Large/Small/Nemo, Open source models, Function calling. Grammarly uniquely offers Grammar checking, Plagiarism detection, Tone suggestions. Both share 0 features.

Feature
Mistral AI
Grammarly
Mistral Large/Small/Nemo
✓
✗
Open source models
✓
✗
Function calling
✓
✗
JSON mode
✓
✗
Multimodal (Pixtral)
✓
✗
Self-hostable
✓
✗
Fast inference
✓
✗
Code generation
✓
✗
Le Chat assistant
✓
✗
Agents API
✓
✗
Batch processing
✓
✗
European data compliance
✓
✗
Grammar checking
✗
✓
Plagiarism detection
✗
✓
Tone suggestions
✗
✓
Style improvements
✗
✓
Browser extension
✗
✓
MS Office plugin
✗
✓
Mobile app
✗
✓
Team style guide
✗
✓
Total Features
12
8

💰 Pricing Comparison

Mistral AI is free; Grammarly starts at $12/mo.

M

Mistral AI Plans

Free tier available

Free API
Free
  • • Rate-limited access
  • • Mistral Small
  • • Experimental features
Pay per use
Free
  • • Per-token pricing
  • • All models
  • • Production ready
Enterprise
Custom
  • • Dedicated deployment
  • • Custom models
  • • EU data residency
Full Mistral AI pricing breakdown →
G

Grammarly Plans

Free tier available

Free
Free
  • • Basic grammar
  • • Spelling
  • • Punctuation
PremiumBest Value
$12/month
  • • Style suggestions
  • • Tone detection
  • • Plagiarism checker
  • • Full rewrites
Business
$15/month
  • • Team features
  • • Style guide
  • • Analytics
  • • Priority support
Full Grammarly pricing breakdown →
🔔 Get notified when prices change

❓ Frequently Asked Questions

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