What does an AI SEO agency actually do?

Two things, and good ones do both. First, they optimize your site for AI answer engines like ChatGPT, Perplexity, and Google AI Overviews, not just the ten blue links. Second, they use AI in their own delivery: agents that research, draft, interlink, and update content continuously. Ask which of the two an agency means when it says AI SEO. Many only mean the second, and some mean neither.

How is AI SEO different from traditional SEO?

The targets changed. Over half of searches now end without a click, and AI assistants answer many questions directly. Traditional SEO optimizes for rankings. AI SEO also optimizes for being cited inside AI answers. That adds new work: entity schema, llms.txt, agent-readable structure, and tracking where you appear in AI responses.

How much do AI SEO agencies cost?

Typical retainers run $3,000 to $15,000 per month depending on scope and market. Enterprise engagements go higher. Subscription models bundle SEO with other growth channels at a flat monthly fee. The bigger cost question is time: SEO compounds over quarters, so a cheap agency that wastes six months costs more than an expensive one that ships.

Should I hire an AI SEO agency or do it in-house?

In-house wins if you have a senior SEO who understands AI surfaces and time to build the content engine. An agency wins if you need the system built and running this quarter. The worst option is a junior hire alone with a tool subscription. The field moves too fast for that setup right now.

Agentic SEO is search work designed for and run by AI agents. It covers making your site readable to AI agents (llms.txt, entity schema, clean structure) and using agents to operate SEO continuously (drafting, interlinking, updating against live search data). It is the newest slice of the AI SEO category and very few agencies offer it as a named practice.

Best AI SEO agencies in 2026: 7 firms compared honestly

2026-08-29

Search the phrase "best AI SEO agencies" and every result is an agency ranking itself first. This post has the same author bias. We sell [GTM engineering with agentic SEO inside it](/gtm). So we will do the only honest thing available: name real firms, say what each is actually good at, and give you the questions that expose the pretenders. First, the definition problem. ## "AI SEO" means two different things Agencies use one label for two different services. You need to know which one you are buying. **Meaning one: SEO for AI surfaces.** Getting your brand cited in ChatGPT, Perplexity, and Google AI Overviews. This is new work. It needs entity schema, structured answers, llms.txt, and tracking tools that watch AI responses instead of rankings. **Meaning two: SEO delivered with AI.** The agency uses AI to research and draft content faster. This is now table stakes. Every agency does it. Some do it well. Some publish slop at scale. A real AI SEO agency in 2026 does both. It optimizes for AI surfaces and it runs an AI-powered delivery engine with human editors. When an agency says "AI SEO," ask which meaning they sell. The answer sorts the field fast. ## The 7 firms ### 1. iPullRank Mike King's firm. The most technically credible voice in AI search right now. iPullRank publishes original research on how retrieval and AI answers actually work, and their client work runs deep on technical SEO for AI surfaces. Best for: mid-market and enterprise companies that want the st

Best AI SEO agencies in 2026: 7 firms compared honestly

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