Grammarly vs Codeium: Full Comparison (2026)
Grammarly and Codeium are both popular choices — but they serve different strengths. Here's what the data says.
⚡ Quick comparison
| Feature | Grammarly | Codeium |
|---|---|---|
| Rating | ★★★★☆ 8.1/10 | ★★★★☆ 8.3/10 🏆 Winner |
| Monthly price | $12 | $12 |
| API (input / output per 1M) | — | — |
| Context window | — | — |
| Free tier | ✅ Yes | ✅ Yes |
| Provider | Grammarly Inc. | Codeium |
| Best for | Non-native English writers, Professional email writers | Students, Freelancers |
🔀 Cross-category comparison
Grammarly (AI Writing Tools) and Codeium (AI Coding Assistants) serve different primary use cases, but both may appear in the same AI stack.
- Use Grammarly for: Non-native English writers, Professional email writers, Anyone needing grammar checks
- Use Codeium for: Students, Freelancers, Anyone avoiding GitHub Copilot cost
- They are complementary, not direct substitutes — many teams use both.
✅ Grammarly — Pros
- Works everywhere (browser extension)
- Excellent grammar correction
- Tone detection
- Free tier useful
❌ Grammarly — Cons
- Not a content generator
- AI rewrites can feel generic
- Privacy concerns for sensitive docs
✅ Codeium — Pros
- Best free tier in category
- 70+ IDE support
- Fast autocomplete
- Good privacy policy
❌ Codeium — Cons
- Less codebase-aware than Cursor
- Suggestions less creative than Copilot
- Smaller community
🏁 Verdict
Based on independent analysis of public benchmarks and pricing data, Codeium scores higher overall (8.3/10 vs 8.1/10). That said, Grammarly wins in specific scenarios — see above.
- Choose Grammarly if: Non-native English writers, Professional email writers, Anyone needing grammar checks
- Choose Codeium if: Students, Freelancers, Anyone avoiding GitHub Copilot cost
❓ Frequently asked questions
Is Grammarly better than Codeium?
Codeium scores higher overall (8.3/10 vs 8.1/10). The best choice depends on your use case — see the verdict above.
Which is cheaper: Grammarly or Codeium?
Both cost $12/month.
What is Grammarly best for?
Non-native English writers, Professional email writers, Anyone needing grammar checks.
What is Codeium best for?
Students, Freelancers, Anyone avoiding GitHub Copilot cost.
Do Grammarly or Codeium have a free tier?
Grammarly has a free tier. Codeium has a free tier.
Grammarly →Codeium →
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