Gemini vs Grammarly: Honest Comparison (2026)
Last updated: May 1, 2026 · Based on real pricing + 9,150 G2 reviews
Gemini
$19.99/mo
Free tierGoogle's multimodal AI for writing, research, and productivity
★★★★☆ 4.3 (150 reviews)
Long-form API
Side-by-side feature comparison
| Feature | Gemini | Grammarly |
|---|---|---|
| Starting price | Free / $19.99/mo | Free / $30/mo |
| G2 rating | 4.3 ★ (150) | 4.7 ★ (9,000) |
| Free tier | ✓ | ✓ |
| Long-form writing | ✓ | ✗ |
| SEO mode | ✗ | ✗ |
| Plagiarism check | ✗ | ✓ |
| Grammar check | ✗ | ✓ |
| API access | ✓ | ✗ |
| Browser extension | ✗ | ✓ |
| Templates | ✗ | ✗ |
| Affiliate program | ✗ | ✓ |
Pricing comparison
Gemini
Monthly: $19.99/mo
Free tier: Gemini 1.5 Flash, limited Gemini Advanced
Grammarly
Monthly: $30/mo
Yearly equivalent: $12/mo
Free tier: Basic grammar checks, limited AI