Quick answer: an AI SEO agency gets your brand named, cited and recommended inside AI-generated answers — ChatGPT, Google's AI Overviews, Gemini, Claude and Perplexity — rather than only ranking a page in classic search results. The work is mostly entity clarity, structured data, third-party citations and answer-ready content. Published US retainers run roughly $2,500 to $12,000+ a month.
The category is young enough that the label is applied to several genuinely different things. This guide separates them.
What an AI SEO agency actually does
Strip away the branding and credible AI SEO work has four components. If a proposal is missing one of them, ask why.
- Entity foundations. Making an engine confident about who you are — consistent name, address, registration, founding date and description everywhere your brand appears, expressed in Organization schema. A model that cannot resolve your identity will not recommend you.
- Structured data. Schema markup that states unambiguously what each page means, so retrieval does not depend on the model correctly guessing from prose.
- Citations. Independent, credible sources saying accurate things about you. This is the part that decides whether you are named ahead of a competitor, and the part that takes longest.
- Answer-ready content. Comparison, pricing, eligibility and FAQ content written so a passage can be lifted and quoted without surrounding context.
How it differs from traditional SEO
| Dimension | Traditional SEO | AI SEO / GEO |
|---|---|---|
| Goal | Rank a page on the results page | Be named inside the generated answer |
| Unit of success | Position and clicks | Citations and share of voice |
| Primary lever | Keywords and backlinks | Entities, corroboration and structure |
| Reporting | Rank tracker, organic sessions | Prompt-level tracking across engines |
| Fails when | You are outranked | The model cannot confidently identify you |
The two are complementary rather than competing. A crawlable, authoritative site is the substrate both depend on — see GEO vs SEO vs AEO for where the disciplines meet.
The three things sold under one name
This is where buyers get burned. "AI SEO" currently describes at least three distinct offerings:
- AI-assisted SEO — classic SEO delivered faster using AI tooling. Legitimate, often good value, but it optimises for Google's blue links, not for AI answers. If the reporting is rankings and traffic, this is what you are buying.
- AI content production — volume content generation. Occasionally useful, frequently the thing that causes an entity to look mass-produced and lose citation-worthiness.
- Generative engine optimisation — the work described above, measured in citations inside AI answers. This is the only one of the three that changes what an assistant says about you.
None is illegitimate. They are just priced and measured differently, and a proposal that blurs them is the first thing to interrogate.
What the market charges
Published 2026 pricing pages from US agencies in this category cluster between roughly $2,500/month at entry level and $12,000+/month for enterprise or full-service engagements, with most mid-market programmes quoted in the $3,000–$6,000 band. Detail on what moves a quote within that range is in our AI SEO pricing guide.
One useful signal about the category's commercial temperature: the term "ai seo agency" carries a cost-per-click above $80 in the US. Agencies are paying that per click because the engagements are large — which is also why the space attracts repackagers.
Nine questions that separate substance from repackaging
- Show me how AI answers about one of your clients today, and how it answered before. A real practitioner has these screenshots. This single question resolves most doubt.
- What exactly are you measuring? If the answer is rankings and organic traffic, you are buying traditional SEO with new branding.
- Which prompts will you track, and who chooses them? Vague "visibility" reporting is unfalsifiable. You want a fixed prompt set you agreed to.
- How do you handle the citation layer? Content alone rarely moves AI answers. If there is no plan for independent sources, there is no plan.
- What will you change in our structured data, specifically? A competent answer names Organization, Service, FAQPage and the entity properties involved.
- What does month one deliver versus month six? Schema and entity fixes register in weeks; citation-driven recommendation changes take months. An agency promising fast recommendation gains is guessing.
- Who writes the content, and where? Relevant if you need non-English markets — many agencies imply coverage they staff through translation.
- What happens to the work if we leave? Schema, content and citations should be yours and should persist. Anything that evaporates was rented.
- Can I speak to a client in my market? Category maturity is low enough that most credible agencies have few reference clients. One relevant reference beats a logo wall.
Realistic timelines
| Period | What should be happening | What you can reasonably expect to see |
|---|---|---|
| Month 1 | Baseline prompt testing, entity audit, schema fixes | A documented before-state; engines describing you more accurately |
| Months 2–3 | Answer-ready content, first citation work | Appearing in answers for narrower, lower-competition prompts |
| Months 4–6 | Citation compounding, competitive prompts | Being named for the prompts that actually drive pipeline |
| Beyond 6 | Defending and widening | Share of voice against named rivals, tracked month over month |
Frequently asked questions
What is an AI SEO agency?
A firm that optimises your brand, content and structured data so generative AI engines name and cite you when someone asks for a recommendation in your category — as distinct from ranking a page in classic search results.
Is AI SEO the same as GEO?
Broadly, yes. Generative engine optimisation (GEO) is the more precise term for the discipline; "AI SEO" is the commercial label most buyers search for. Answer engine optimisation (AEO) is the adjacent practice of winning direct-answer formats.
Can AI agents do SEO on their own?
They can do parts of it — auditing, drafting, monitoring. They cannot earn a citation from a trade publication or reconcile your legal entity records, and those are the parts that decide whether a model recommends you.
Is SEO dead?
No. What has changed is that ranking is no longer sufficient for visibility, because a growing share of answers are read rather than clicked. The foundations of good SEO are also the foundations of AI visibility.
Do we need an agency, or can we do this in-house?
The schema and entity work is genuinely doable in-house if you have a technical marketer. The citation layer is where most in-house efforts stall, because it needs sustained outreach rather than a project.
If you are evaluating this as a purchase rather than a concept, our AI SEO and GEO services page sets out scope and deliverables, with market-specific delivery for the US, UK, Europe and Australia. Every engagement opens with a free AI Visibility Audit documenting the before-state referenced throughout this guide.