Rank Math has grown rapidly as a Yoast alternative, offering more features in its free tier. It includes keyword tracking, schema markup, and an AI content assistant (with separate credit purchases). Here's a detailed comparison.
Feature-by-Feature Comparison
| Feature | WordPress AI Plugin | Rank Math |
|---|---|---|
| AI Content Generation | Full article generation — prompts, URL rewriting, automated topics. Anti-slop writing, two-pass editor on Premium | AI assistant for content suggestions. Requires separate AI credit purchases ($4.99 for ~5,000 credits) |
| Keyword Research | DataForSEO integration: volume, difficulty, CPC, competitor gap analysis | Keyword suggestions within the editor. Limited compared to dedicated tools |
| SERP Tracking | Built-in rank tracking with trends | Rank tracking available in Pro plan |
| SEO Audit | Lighthouse-powered comprehensive audits | SEO analysis module in the dashboard |
| Schema Markup | Generator for Article, FAQ, HowTo with validation and testing | Extensive schema support — 20+ types with visual editor (industry leading) |
| On-Page Analysis | SEO built into generated content automatically | Advanced on-page analysis with multiple focus keywords |
| WordPress Publishing | Direct publishing from content generator to WordPress | N/A — works within WordPress editor |
| Price | From $11.99/mo | Free version; Pro from $5.75/mo; AI credits extra |
Our Verdict
Rank Math is the strongest on-page SEO plugin for WordPress, especially with its schema markup support. WordPress AI Plugin complements it well — use Rank Math for on-page analysis and schema, WordPress AI Plugin for content generation and keyword research. Or use WordPress AI Plugin standalone if you prefer a single subscription covering AI content and SEO tools.