Independently agent-testedAnthropic · OpenAI · Gemini · Grok
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Bench test · AI SEO

RankMath vs Semrush

Same rack, same rubric, four independent agents. Here's how they measure up — and which we'd pick.

RankMathSemrush
consensus
score8.5/10
score8.0/10
agents won1 / 42 / 4 ▲
from$15/mo ▲$139/mo
free tieryesyes
categoryAI SEOAI SEO

Agent panel — head to head

Anthropic8.28.2
OpenAI8.48.8 ▲
Gemini9.39.5 ▲
Grok8.2 ▲5.5

RankMath

  • ✓Comprehensive all-in-one SEO solution
  • ✓User-friendly interface with actionable recommendations
  • ✓Competitive pricing with free tier available
  • —Can be overwhelming for beginners with many features
  • —Some advanced features require premium subscription
  • —Occasional conflicts with other WordPress plugins
AI-powered content analysis and optimizationTechnical SEO auditing and fixesKeyword rank trackingSchema markup generationXML sitemap managementBulk content optimization

Semrush

  • ✓Huge dataset
  • ✓$200 bounty
  • ✓120-day cookie
  • —Flat bounty (no recurring)
  • —Expensive
  • —Overkill for small sites
Keyword researchBacklinksSite auditRank trackingAds

$15/mo · free tier

Try RankMath ▸

$139/mo · free tier

Try Semrush ▸

Verdict

RankMath takes it — 8.5 to 8.

The panel gave RankMath the edge on 1 of 4 agents.