Answer engine optimization, or AEO, helps your business appear in answers from tools such as ChatGPT and Perplexity. SEO helps buyers find you through search results. You may need help with both, but that does not automatically mean hiring two agencies.
The short version: Keep an SEO agency when traditional search brings meaningful demand and AI visibility is secondary. Handle basic AEO work internally when the opportunity is still small. Consider a specialist when AI tools already answer your buyers’ questions and the potential customers can justify the fee.
The comparison below explains the work behind each option, typical costs, and where DIY usually becomes harder. I run an agency that sells AEO. I also use these checks to turn prospects away when the fit is wrong.
Which Should You Choose: AEO Agency, SEO Agency, or DIY?
Start with two questions. Do AI assistants already answer the category questions your buyers ask? Can one or two incremental customers justify at least $3,000 a month? When both answers are yes, a dedicated AEO practice can make sense.
If either answer is no, look at traditional organic demand. Keep an SEO agency when Google already produces pipeline or the channel needs staffed scale. Otherwise, complete the foundations internally and keep the budget on channels with proven demand.
| Option | Typical 2026 cost | Who it fits |
|---|---|---|
| DIY | Your time, plus tools under $200/mo | Pre-seed to seed, founder-led content, low AI referral share |
| SEO agency | Your existing retainer | Traditional organic already drives demand or needs staffed scale |
| AEO agency | $3,000 to $15,000/mo, audits $1,500 to $5,000 | AI already answers your category, deal sizes carry the retainer |
The cost bands come from our AEO/GEO agency cost breakdown, which walks through pricing models and red flags in detail. The short version on price: under about $1,500 a month, you are almost always buying rebranded SEO.
Use the branches in that order because low AI referral share alone does not decide between DIY and SEO. The second question is whether classic organic search already earns enough pipeline to justify ongoing agency work. If it does not, DIY the foundations and keep the budget for a channel with proven demand.
When Does DIY AEO Make Sense?
DIY makes sense when you are early-stage, the founder is still the main content engine, and AI assistants send you almost no traffic yet. The on-site fundamentals are learnable: JSON-LD schema, an llms.txt file, question-style headings with direct 40 to 60 word answers underneath. None of that requires an agency.
Our 2026 definition of AEO covers five structural fixes most sites need. A motivated founder can ship them on 10 priority pages within a month. According to the Princeton-led GEO study on arXiv, adding statistics and credible citations lifted generative-engine visibility by up to 40%. The study covered 10,000 queries.
DIY has a limit, though. You can finish most of the on-site work early, while off-site work needs ongoing attention. Our own citation research found that roughly 85% of AI citations trace back to third-party sources: review sites, roundups, industry publications, earned mentions. Winning those takes sustained outreach, and that labor is the real product an AEO retainer sells.
Do the on-site work early. Treat sustained off-site authority work as the trigger for outside help, since that is where a small internal team usually runs out of time.
When Is a Traditional SEO Agency Enough?
A traditional SEO agency is enough while your buyers still discover you through classic Google results and AI referrals stay under roughly 5% of traffic. In that situation, rankings still drive revenue, and a good SEO retainer covers the hygiene that AEO inherits anyway: clean HTML, fast pages, logical heading structure, named authors.
This describes more companies than the AEO industry likes to admit. Local services, late-majority B2B categories, and businesses whose buyers do not research with AI assistants can keep funding classic search and lose nothing this quarter.
That shared groundwork can make it easy to assume your SEO agency covers AEO. Check first: the two disciplines aim for different results. SEO competes for a page position on a results page. AEO competes for a passage cited inside a generated answer, which is why a top-ranking page can be invisible in ChatGPT. Our SEO vs GEO breakdown goes deep on that split.
Ask your SEO agency for a citation baseline across ChatGPT, Perplexity, and Google AI Overviews. Then ask for its off-site authority plan. A specific answer may mean you do not need a second vendor. A list of keyword pages and traffic reports means the scope has not changed. According to The Digital Elevator’s AEO and GEO pricing guide, AEO priced below $1,500 a month is often rebranded SEO. The same concern applies to a free add-on.
When Does a Dedicated AEO Agency Pay Off?
A dedicated AEO agency pays off when 3 conditions hold. AI assistants already answer your category questions. One or two incremental customers can cover a meaningful share of the fee. Off-site authority work has become the bottleneck your team cannot clear.
Test the first condition tonight. Ask ChatGPT and Perplexity the questions your buyers ask: “best [your category] for [your buyer].” If competitors get named and you do not, buyers are already seeing an answer without your brand. That gap can persist as models reuse sources they trust.
The off-site condition is the one that separates a real AEO engagement from a content retainer with new branding. Since most citations come from third-party sources, the heavy lift is earning mentions across review sites, comparison roundups, and industry publications, then measuring whether citation rates move. That is the work our Citation Stack™ methodology is built around: on-site encoding first, then question ownership, citation engineering, authority signals, and continuous measurement across the major engines.
If you are unsure whether those conditions hold, establish the baseline before signing a retainer. A paid one-time audit usually costs $1,500 to $5,000. A bounded placement analysis can answer the first question without forcing a long commitment.
Who Should Not Buy AEO Yet?
Many companies should not buy an AEO retainer yet. Hold off if the offer is unproven, buyers do little research, AI assistants return thin category answers, or a $3,000 monthly fee would strain the budget.
In each of those cases, the better move is cheaper. Pre-product-market-fit teams should spend the money on learning what converts. Impulse-purchase and walk-in businesses should fund the channels their buyers use. Categories with no AI answer surface yet can do DIY basics now and revisit in 2 quarters, since the on-site work done early still compounds.
Funded SaaS, AI, and subscription companies should consider specialist help when AI tools already recommend vendors in their category. For these teams, the question is whose name appears in the answer.
How does The Remarkable handle AEO implementation?
The Remarkable’s AEO/GEO practice connects technical foundations, content that answers buyer questions, authority signals, and citation measurement. Our Citation Stack™ organizes that work around the gaps in your current visibility.
We agree on priority pages, technical changes, and who implements them. Your team can make those changes, or we can include content and technical execution in the engagement.
Unsure which option fits? Our Free AEO Placement Analysis checks 10 buyer questions and shows who gets cited instead of you. We can use that baseline to think through whether your next step belongs with your team, your SEO partner, or an AEO specialist.
