# Semrush vs Surfer SEO: which do AI models recommend for SEO, October 2026

GTM AI Recommendation Index, October 2026 Edition, SEO and content optimization platforms. Ten of fourteen models named Semrush first on the direct prompt; one named Surfer SEO. Page: https://gtm-ai-index.com/marketing/seo-content-optimization/semrush-vs-surfer-seo/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Semrush | 21% | #1 of 12 | 21% | 58 | 14 of 14 |
| Surfer SEO | 17% | #2 of 12 | 17% | 58 | 14 of 14 |

## The direct prompt, model by model

- Claude Haiku 4.5: semrush first (first choices: Semrush) (alternatives: Ahrefs, Moz, Surfer SEO, Writesonic)
- Gemini 3.5 Flash: semrush first (first choices: Clearscope, Semrush) (alternatives: Ahrefs, MarketMuse, Surfer SEO)
- Perplexity Sonar: semrush first (first choices: Semrush) (alternatives: HubSpot Marketing Hub, MarketMuse, Surfer SEO)
- Grok 4.20: semrush first (first choices: Semrush) (alternatives: Ahrefs, Clearscope, MarketMuse, SE Ranking, Surfer SEO)
- Mistral Small: semrush first (first choices: Ahrefs, Semrush) (alternatives: Clearscope, Google Keyword Planner, Google Search Console, HubSpot Marketing Hub, Screaming Frog SEO Spider, Surfer SEO)
- DeepSeek V4 Flash: semrush first (first choices: Semrush) (alternatives: Ahrefs, Clearscope, SE Ranking, Surfer SEO)
- Qwen 3.7 Flash: semrush first (first choices: Semrush) (alternatives: Sight AI, Surfer SEO)
- GLM 4.7 FlashX: semrush first (first choices: Semrush) (alternatives: Ahrefs, Clearscope, Surfer SEO)
- MiniMax M2.5: semrush first (first choices: Semrush) (alternatives: Conductor, SE Ranking, Sight AI)
- GPT-6 Luna: semrush first (first choices: Semrush) (alternatives: Conductor)
- Muse Glimmer 30B: surfer seo first (first choices: Surfer SEO) (alternatives: Clearscope, MarketMuse)
- GPT-5.4 mini: neither first, one named (first choices: Conductor) (alternatives: Clearscope, Semrush)
- Kimi K2: neither first, one named (first choices: Clearscope) (alternatives: Frase, Semrush, Surfer SEO)
- Llama 4 Maverick: neither named (first choices: Sight AI)

## What the models said about Semrush

- "you cannot afford to waste money on bloated enterprise platforms like Semrush, Ahrefs, or Clearscope, which easily run $100 to over $150 per month" (Gemini 3.5 Flash, budget prompt, soft negative)
- ""Semrush is the market's most comprehensive all-in-one SEO platform." ... If you need backlink intelligence and full marketing reporting, start with Semrush or Ahrefs." (Muse Glimmer 30B, comparative prompt, first choice)
- "the pairing of Semrush and Clearscope remains the most reliable, high-performing combination for mid-market B2B organizations" (Gemini 3.5 Flash, direct prompt, first choice)
- "For most mid-market B2B companies, Semrush offers the best balance of features, pricing, and procurement readiness." (MiniMax M2.5, direct prompt, first choice)

## What the models said about Surfer SEO

- "Surfer SEO if you publish at volume (credit economics will hurt you)" (Kimi K2, negative prompt, hard negative)
- "Surfer SEO's recent price changes and costly AI add-ons... have made many users seek better solutions... complex to use and difficult to fully leverage." (Muse Glimmer 30B, negative prompt, soft negative)
- "Surfer — because the scoring can be mistaken for an objective quality metric, and the product leans into AI-assisted generation." (GPT-5.4 mini, negative prompt, soft negative)
- "More comprehensive than Clearscope or Frase... Pick Surfer if you want one platform to manage the entire content process from planning to publishing." (Kimi K2, comparative prompt, first choice)
- "Surfer SEO is considered one of the best tools for content optimization as it analyzes what's already ranking and provides data-backed guidance" (Llama 4 Maverick, comparative prompt, first choice)
- "Surfer SEO: A content-optimization tool that analyzes top-ranking pages for a target keyword and provides a structured brief" (Llama 4 Maverick, paraphrase prompt, first choice)

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category. Comparisons are drawn for the top eight products in each category. Published under CC BY 4.0; the output is the models' output, and nothing here is a recommendation by the index.