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

SurferSEO vs Semrush

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

SurferSEOSemrush
consensus
score8.2/10
score8.0/10
agents won1 / 43 / 4 ▲
from$29/mo ▲$139/mo
free tiernoyes ▲
categoryAI SEOAI SEO

Agent panel — head to head

Anthropic7.88.2 ▲
OpenAI7.88.8 ▲
Gemini8.99.5 ▲
Grok8.3 ▲5.5

SurferSEO

  • ✓Data-driven recommendations based on actual top-ranking pages
  • ✓User-friendly interface with clear actionable insights
  • ✓Helps improve search rankings and organic traffic
  • —Subscription-based pricing may be costly for small teams
  • —Results depend heavily on keyword selection accuracy
  • —Doesn't guarantee ranking improvements
Content analysis and optimization recommendationsCompetitor SERP analysisKeyword research and density optimizationOn-page SEO auditContent outline generationReal-time scoring and guidance

Semrush

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

$139/mo · free tier

Try Semrush ▸

Verdict

SurferSEO takes it — 8.2 to 8 (a photo finish).

The panel gave SurferSEO the edge on 1 of 4 agents. That said, Semrush has a free tier if budget is the deciding factor.

SurferSEO vs Semrush: which wins on the bench? (2026) — Try Tested