Head-to-head
Grammarly vs SEO.AI
Two leading ai writing & content tools, compared on pricing, features, and editorial fit. Updated for 2026.
SEO.AI
AI SEO agent that plans, writes, and publishes content for your website
AIFrom $149/mo
Visit SEO.AIAt a glance
| Grammarly | SEO.AI | |
|---|---|---|
| Tagline | AI writing assistance everywhere you write. | AI SEO agent that plans, writes, and publishes content for your website |
| Pricing model | Freemium | Paid |
| Starts at | Free | $149/mo |
| Founded | 2009 | — |
| AI-native | ||
| Categories | AI Writing & Content | SEO, AI Writing & Content |
| Vendor claimed |
Quick take
Pick Grammarly if you need ai writing assistance everywhere you write. Pick SEO.AI if you need ai seo agent that plans, writes, and publishes content for your website.
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Frequently asked
- Is Grammarly better than SEO.AI?
- It depends on your use case. Grammarly is ai writing assistance everywhere you write, while SEO.AI is ai seo agent that plans, writes, and publishes content for your website. See the comparison above for which fits your team.
- What's the price difference between Grammarly and SEO.AI?
- Grammarly starts at Free. SEO.AI starts at $149/mo.
- Can I migrate from Grammarly to SEO.AI?
- Most tools in this category support data import via CSV. For complex migrations, both vendors offer onboarding assistance on higher-tier plans.