"AI marketing agency" might be the least standardized term in business right now. Behind the same three words you'll find a teenager reselling chatbot subscriptions, a dev shop building custom models nobody asked for, and (occasionally) a team that actually makes small businesses money with AI.
We run one of these (the third kind, we'd argue), so here's the honest taxonomy: what each type delivers, what each should cost, and how to tell them apart on the first call.
The three kinds of "AI agency"
1. The tool reseller. Buys white-label rights to a chatbot or an "AI receptionist," marks it up, and hands you a login. Deliverable: software. Support: a help doc. Cost: $100–$400/month. There's nothing evil here (sometimes a single tool is all you need), but you're paying an agency margin for something you could subscribe to directly, and nobody is accountable for whether it makes you money.
2. The custom-build shop. Developers who build bespoke AI: a fine-tuned model on your data, a custom pipeline, an integration nobody sells off the shelf. Deliverable: a project. Cost: $10,000 and way up. Right answer for maybe one small business in a hundred, usually one with unusual data or volume. If a shop is quoting you custom development for "answer my phone and request reviews," you're being oversold.
3. The implementation practice. Deliverable: outcomes, not logins. The agency picks the right tools, configures them around your workflow, connects them to each other, and stays accountable month over month. Cost: $200–$700/month for the systems, $1,000–$3,000/month if humans operate everything for you. This is the only category where "agency" means what it should.
The tell between #1 and #3 is one question: "what happens after it's installed?" A reseller's answer ends at setup. An implementer's answer is a monthly loop: scripts tuned, reviews replied to, missed calls audited, numbers reported.
What implementation actually covers
For a small business, the AI that reliably pays lives in five places:
- Reputation: review requests fired after every job, every Google review answered, your profile compounding while you work.
- Chat: website, Instagram, and Messenger answered in seconds, around the clock.
- Voice: a natural-sounding agent that picks up when you can't, qualifies the caller, and books the job. (Missed calls are the expensive leak.)
- Follow-up: the "still want that estimate?" sequences that revive quotes silence would have killed.
- Operation: a human team running all of it, plus the marketing around it.
That's the whole honest menu. Anything else an "AI agency" pitches a small business is usually one of these five wearing a costume. (Full breakdown with prices: AI implementation in plain English.)
The question almost nobody asks
Before any of it: where will the leads come from?
AI works the demand you already have. It answers calls, replies to chats, requests reviews, all verbs that need a customer on the other end. If your website doesn't rank and the phone is quiet, an AI receptionist is a subscription with nothing to do.
This is the diagnostic that should start every AI conversation, and it's the reason our practice leads with search instead of software: do you have an AI problem or an SEO problem? Get the order right and the two compound: search fills the funnel, AI works it, the reviews AI collects push the rankings higher.
How to vet one in ten minutes
- "What happens after installation?" Monthly loop, or goodbye?
- "Show me a configuration you built for a business like mine." Real implementers have real examples: the qualifying questions their voice agent asks, the review-reply tone, the follow-up cadence.
- "What do you not recommend for a business my size?" The honest answer disqualifies custom builds and half the tool catalog. A shop that recommends everything is a reseller with a quota.
- "Where do the leads come from first?" If they don't ask about your search presence before selling you AI, they're selling the second act without the first.
- "What are the terms?" Month-to-month or walk. AI tooling changes too fast to be locked into anyone for a year.
The bottom line
An AI marketing agency worth hiring sells you a working loop, not a login: demand from search, every lead answered in seconds, every job turned into a review, every review feeding the rankings. Implemented for you by specialists who keep the work coming in, on terms you can leave.
That's the standard, and here's how we run it.