# Surfer SEO vs Ahrefs: which do AI models recommend for SEO, September 2026

GTM AI Recommendation Index, September 2026 Edition, SEO and content optimization platforms. Three of twelve models named Surfer SEO first on the direct prompt; one named Ahrefs. Page: https://gtm-ai-index.com/marketing/seo-content-optimization/surfer-seo-vs-ahrefs/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Surfer SEO | 25% | #1 of 16 | 12% | 56 | 12 of 12 |
| Ahrefs | 4% | #6 of 16 | 14% | 51 | 12 of 12 |

## The direct prompt, model by model

- Gemini 3.5 Flash: surfer seo first (first choices: Semrush, Surfer SEO) (alternatives: Ahrefs, Clearscope, SE Ranking)
- Grok 4.1 Fast: surfer seo first (first choices: Surfer SEO) (alternatives: Ahrefs, Clearscope, Frase, MarketMuse, Semrush)
- MiniMax M2.5: surfer seo first (first choices: Surfer SEO) (alternatives: Ahrefs, MarketMuse)
- Qwen 3.7 Flash: ahrefs first (first choices: Ahrefs, Semrush) (alternatives: Clearscope, HubSpot, SE Ranking, Screaming Frog, Sitebulb, Surfer SEO)
- GPT-5.4 mini: neither first, one named (first choices: Semrush) (alternatives: Ahrefs, Clearscope, Conductor)
- Perplexity Sonar: neither first, one named (first choices: Semrush) (alternatives: Ahrefs, Clearscope, Surfer SEO)
- Mistral Small: neither first, one named (first choices: HubSpot Content Hub, HubSpot Marketing Hub) (alternatives: Clearscope, MarketMuse, Semrush, Surfer SEO)
- DeepSeek V4 Flash: neither first, one named (first choices: Semrush) (alternatives: Ahrefs, Clearscope, MarketMuse, Surfer SEO)
- Llama 4 Maverick: neither first, one named (first choices: Keygrip) (alternatives: Ahrefs, Clearscope, Screaming Frog, Semrush, Surfer SEO)
- Kimi K2: neither first, one named (first choices: Semrush) (alternatives: Ahrefs, Clearscope, MarketMuse, Screaming Frog, Surfer SEO)
- GLM 4.7 FlashX: neither first, one named (first choices: Semrush) (alternatives: Ahrefs, Clearscope, NeuronWriter, Surfer SEO)
- Claude Haiku 4.5: neither named (first choices: Sight AI) (alternatives: Intero Digital, Stratabeat, Ubersuggest, Virayo, Writesonic)

## What the models said about Surfer SEO

- "Surfer SEO — entry plan is $49/mo, but AI tracking requires pricier tiers; more expensive than Frase" (DeepSeek V4 Flash, budget prompt, hard negative)
- "Content optimization platforms like Surfer SEO, Clearscope, Frase, or Rankability... they are highly dangerous when misused" (Gemini 3.5 Flash, negative prompt, soft negative)
- "premium content editors (like Clearscope or Surfer SEO) often start around $100 to $140+ per month" (Gemini 3.5 Flash, budget prompt, soft negative)
- "Ahrefs + Surfer SEO provides the best balance of comprehensive research capabilities and content optimization at $298/month" (MiniMax M2.5, direct prompt, first choice)
- "The Best All-Rounder: Surfer SEO ... Surfer is widely considered the market leader for real-time content optimization." (Qwen 3.7 Flash, paraphrase prompt, first choice)
- "Choose Surfer SEO if you want the most mature real-time optimization experience and produce content at volume" (Kimi K2, comparative prompt, first choice)

## What the models said about Ahrefs

- "Avoid: Enterprise tools (Ahrefs/Semrush $99–$139); overkill for small budgets." (Grok 4.1 Fast, budget prompt, hard negative)
- "Tools to Skip on a Budget - Ahrefs ($108+/mo)" (DeepSeek V4 Flash, budget prompt, hard negative)
- "The price increase in 2024 changed the value calculation, with the Lite plan jumping from $99 to $129 per month" (Claude Haiku 4.5, negative prompt, soft negative)
- "Choose Ahrefs or Semrush if you need a baseline tool for overall website health, backlink tracking, and competitor espionage." (Gemini 3.5 Flash, comparative prompt, first choice)
- "Go with Semrush (for the extra marketing tools) or Ahrefs (if you care primarily about backlinks)" (Qwen 3.7 Flash, comparative prompt, first choice)
- "The best SEO content optimization tool for a mid-sized B2B company would be Ahrefs or SEMrush" (Llama 4 Maverick, paraphrase prompt, first choice)

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all twelve 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.