Roughly 60% of Google searches now end without a click, and platforms like ChatGPT and Perplexity are answering questions brands used to fight for on page one. So a new pitch has landed in every CMO’s inbox: Generative Engine Optimization as a Service. Agencies like Solutionarian are packaging it as the next must-have retainer. But what, exactly, are brands paying for?
GEO as a Service: The New Line Item on the Media Plan
Generative Engine Optimization, or GEO, is the practice of getting a brand cited, quoted, or recommended inside AI-generated answers rather than ranked in a list of blue links. Google’s AI Overviews, ChatGPT, Perplexity, and Gemini don’t send traffic the way traditional search did. They synthesize an answer and, if you’re lucky, name-drop your brand as the source.
“GEO as a service” is the commercial wrapper agencies have built around this shift. It’s not a single tactic. It’s a bundle: content restructuring, structured data, citation tracking, and reporting dashboards, sold as a monthly retainer the same way SEO was sold a decade ago. Solutionarian and a growing list of competitors are positioning themselves as the specialists who can make that happen faster than an in-house team figuring it out from scratch.
Why This Is Selling Right Now
Because the fear is real and the metrics are murky. Marketing teams can see AI referral traffic climbing in their analytics, but they can’t explain why one competitor gets cited in a ChatGPT answer and they don’t. That gap between visibility and control is exactly where agencies price their retainers.
Data backs the urgency. Traffic arriving from AI assistants converts at meaningfully higher rates than average organic traffic, according to industry analysis covered in recent attribution research, yet most brands still can’t tie that traffic to revenue in their existing stack. That combination, high-value traffic with low visibility into how it happens, is a perfect setup for a services pitch.
Brands aren’t buying GEO because they fully understand it. They’re buying it because the alternative, doing nothing while competitors get cited and you don’t, feels riskier than the fee.
What’s Actually in the Package?
Strip away the jargon and most GEO retainers from agencies like Solutionarian break into four deliverables:
- Content restructuring for extractability. Rewriting existing pages so answers sit in the first two sentences, using clear headers, definitions, and comparison tables that large language models can lift cleanly.
- Structured data and schema deployment. FAQ schema, HowTo schema, and organization markup that give crawlers a machine-readable signal about who you are and what you know.
- Citation monitoring. Tools (often built in-house or licensed from third parties) that query ChatGPT, Perplexity, and Google’s AI Overviews on a recurring basis and log whether the brand shows up, and how it’s described.
- Reporting against a proxy metric. Since there’s no universal “GEO ranking,” agencies report on citation frequency, share of voice inside AI answers, and sentiment of the mention.
None of this is fictional work. It’s real, and some of it genuinely moves the needle. The framework laid out in this three-layer AEO breakdown is a useful reference point for what disciplined GEO work looks like versus a repackaged content audit with a new name on the invoice.
The Attribution Problem Nobody Wants to Admit
Here’s the uncomfortable part. Citation frequency is not revenue. An agency can show you a dashboard with rising mentions inside AI answers and still not prove a single incremental sale came from it. That’s not necessarily fraud, it’s the nature of a channel where the destination platform doesn’t hand you conversion data the way Meta or TikTok Ads Manager does.
Marketing teams that have wrestled with this same gap in paid media, where citation counts are starting to replace backlinks as a leading indicator, know the pattern: a proxy metric gets treated as a KPI long before anyone validates it against pipeline. Ask any agency selling GEO services one blunt question: can you connect a citation to a CRM-tracked conversion? Most can’t yet, and the honest ones will tell you so.
This is also where internal politics get messy. SEO teams, content teams, and PR often fight over who owns GEO work, since it touches all three disciplines. The result, as covered in recent reporting on GEO ownership disputes, is that brands sometimes pay two vendors to do overlapping work because nobody internally claimed the mandate first.
Solutionarian’s Angle, and Why It Matters for Buyers
Solutionarian markets itself as a full-stack GEO partner: strategy, execution, and monitoring under one contract. That’s appealing to brands that don’t want to stitch together three vendors. The trade-off is less transparency into which piece of the retainer is actually driving results. If citation share rises but so does the invoice, a buyer needs to isolate what specific action produced the lift: was it the schema rollout, the rewritten FAQ pages, or something the platform’s own algorithm changed independently?
Ask for a breakdown by workstream, not just a blended report. Any agency confident in its methodology should be able to show which lever moved which number.
Where the Real Risk Hides
GEO retainers, like any AI-adjacent service, carry compliance exposure that’s easy to overlook in the excitement of a new channel. A few specifics worth flagging before signing:
- Content authenticity claims. If a GEO vendor is generating large volumes of AI-written content to “feed” the models, that content still needs to meet disclosure and accuracy standards under FTC guidance on truthful advertising.
- Data sourcing for citation monitoring. Some monitoring tools scrape AI outputs at a scale that may violate platform terms of service. Ask vendors how they collect citation data.
- Vendor lock-in on proprietary dashboards. If the only place you can see your citation performance is inside the agency’s tool, you have zero portability if you switch vendors.
These aren’t hypothetical concerns. The same due-diligence gaps that show up in AI-driven ad and influencer tooling, outlined in recent coverage of vendor audits at AI handoffs, apply directly to GEO retainers. Any handoff point where an outside system touches your brand’s content or data deserves a documented review, not a handshake.
How to Evaluate a GEO Retainer Before You Sign
A short diligence list, worth running through with procurement and legal before any contract gets signed:
- Ask for a baseline citation audit before work begins, so you can measure lift against a real starting point, not a vendor’s estimate.
- Request workstream-level reporting, not just a blended dashboard.
- Confirm data portability: can you export citation history if you leave?
- Clarify how the agency defines “citation,” since some count any brand mention while others only count direct source attribution.
- Check whether pricing is tied to output volume (content pieces produced) or outcomes (citation share, referral conversions).
Industry benchmarking from sources like eMarketer and Sprout Social can help set realistic expectations for what “good” citation growth looks like across a quarter, since most vendors don’t publish comparable benchmarks themselves. It’s also worth reviewing how HubSpot’s own research on AI search behavior frames the shift, since it’s one of the few vendors publishing usable data on how buyers actually query AI assistants.
None of this means GEO retainers are a scam. Some of the underlying work, restructuring content for extractability, deploying schema, monitoring citations, is legitimately useful and overlaps with good content strategy anyway. The issue is pricing discipline and proof of causation, not the existence of the service itself. Brands that treat this the way they’d treat any new media channel, with a baseline, a hypothesis, and a kill criteria, will get more out of it than brands that buy the retainer because the fear of missing out got louder than the due diligence.
Frequently Asked Questions
What is Generative Engine Optimization as a service?
It’s a retainer model where agencies handle the ongoing work of getting a brand cited inside AI-generated answers from tools like ChatGPT, Perplexity, and Google’s AI Overviews, typically bundling content restructuring, schema markup, and citation monitoring.
How is GEO different from traditional SEO?
Traditional SEO optimizes for ranking in a list of links a user clicks. GEO optimizes for being quoted or summarized inside an AI-generated answer, where there’s often no click at all, just a mention or citation.
Can brands measure ROI from GEO retainers?
Measurement is still immature. Most agencies report on citation frequency and share of voice rather than direct revenue attribution, so brands should push vendors for workstream-level reporting and a documented baseline before assuming causation.
Is GEO worth paying an agency for versus doing it in-house?
It depends on internal bandwidth and existing content quality. Agencies can move faster on schema deployment and citation monitoring tooling, but the core content restructuring work is something most in-house content teams can learn to do without an ongoing retainer.
What compliance risks come with GEO services?
Key risks include disclosure requirements for AI-generated content, data sourcing practices for citation monitoring tools, and vendor lock-in on proprietary reporting dashboards that limit data portability if a brand switches agencies.
Before signing a GEO retainer, demand a citation baseline and workstream-level reporting in the contract itself, not as a promised follow-up. That single clause will tell you more about a vendor’s confidence than any pitch deck.
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