Bench test · AI SEO
Semrush vs SurferSEO
Same rack, same rubric, four independent agents. Here's how they measure up — and which we'd pick.
| Semrush | SurferSEO | |
|---|---|---|
| consensus | score8.0/10 | score8.2/10 |
| agents won | 3 / 4 ▲ | 1 / 4 |
| from | $139/mo | $29/mo ▲ |
| free tier | yes ▲ | no |
| category | AI SEO | AI SEO |
Agent panel — head to head
| Anthropic | 8.2 ▲ | 7.8 |
| OpenAI | 8.8 ▲ | 7.8 |
| Gemini | 9.5 ▲ | 8.9 |
| Grok | 5.5 | 8.3 ▲ |
Semrush
- ✓Huge dataset
- ✓$200 bounty
- ✓120-day cookie
- —Flat bounty (no recurring)
- —Expensive
- —Overkill for small sites
Keyword researchBacklinksSite auditRank trackingAds
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
$139/mo · free tier
Try Semrush ▸$29/mo
Try SurferSEO ▸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.