Surfer SEO
Scores and guides drafts against live SERP data before publishing.
Full Surfer SEO record →Head to head
Surfer SEO vs Clay
Surfer SEO (Surfer) and Clay (Clay) both sit in Marketing. Surfer SEO is the cheaper entry point at Free tier · from $49/mo. Clay shipped more tracked changes in the last 30 days (5 vs 2). Every value below comes from the latest crawl of the vendors' own pages.
| Attribute | Surfer SEO Surfer | Clay Clay |
|---|---|---|
| Segment | Marketing | Marketing |
| Version | 2026 platform | Workflows |
| Entry cost | Free tier · from $49/mo | Free tier · from $149/mo |
| Pricing tiers | Discovery $49 · AI Search Analytics $82 · Standard $99 · Pro $182 · Peace of Mind $299 · Enterprise $999 | Free free · Starter $149 · Explorer $349 · Pro $800 |
| Model stack | ChatGPT · Claude · Gemini · GPT-4 · Perplexity · Undisclosed frontier LLM | ChatGPT · Claygent · Claygents · GLM 5.2 · GPT-4 · GPT-4o · Kimi K2.6 · Sculptor AI |
| Context window | Not published | Not published |
| Public API | ||
| Routes models | ||
| Changes / 30d | 2 | 5 |
| Origin | Global | Global |
| Capabilities | Content score, SERP analyser, Outline builder, AI tracker, Auto-optimise, AI SEO Optimization, AI Writing Assistant (Surfy), AI Detector & Humanizer | Data waterfall, Claygent research agent, CRM sync, Signal triggers, Sequence writing, Data marketplace, Waterfall enrichment, Claygents (AI Agent) |
Clay
Waterfalls dozens of data providers and writes personalised sequences with AI.
Full Clay record →