How to choose an AI growth agency

Every agency has “AI” on the homepage now. The word has stopped being a filter. The way to tell a real operation from a thin one is to ask questions where the honest answer is specific and the evasive answer is vague. Here is what to ask, and what a good answer sounds like.

1. How are you priced — and is it tied to my ad spend?

Good answer: a flat fee, or a flat fee plus a performance share aligned to your growth. Walk away if: they take a percentage of ad spend — that pays them more when they spend more of your money, which is not the same as growing you. We wrote about why we price a flat fee and not a cut of spend.

2. Who signs off before anything reaches my brand?

Good answer: a named senior human who reviews and approves every output. Walk away if: the answer is “the AI handles it” with no human gate. Unsupervised publication is the real risk — more on whether you can trust AI to run your marketing.

3. How often do I see results, and in what format?

Good answer: a regular, plain record — a weekly ledger of what was done and what moved, plus a short daily brief. Walk away if: the answer is a polished deck once a month and a “let’s hop on a call” whenever you ask what actually happened. Receipts beat reports.

4. Who owns the accounts, data, and content?

Good answer: you do — your ad accounts, your analytics, your content, in your name, portable if you leave. Walk away if: they run everything through their own accounts and you cannot take it with you. That is a hostage, not a partner.

5. What do the AI agents do, and what do the humans do?

Good answer: a clear split — agents execute at scale (discovery, drafts, bids, measurement); humans set strategy and approve. If they can draw you the line, it is real. Walk away if: they cannot say what is automated and what is human, or “AI” turns out to mean a junior with a chatbot. This is the difference between agentic-native and AI-flavoured.

6. How do you protect my brand voice and quality?

Good answer: your voice is captured up front, an editor reads every piece, and the agents draft far more than ships so the weak work is cut before you ever see it. Walk away if: the samples all sound like generic AI, or nobody can explain how off-brand output gets caught.

7. What happens if I leave?

Good answer: a clean handover — you keep the accounts, the data, and the work, and there is no lock-in beyond a fair notice period. Walk away if: leaving means losing your history, your creative, or access to your own accounts.

The word “AI” has stopped being a filter. The answers to these seven still are.

Red flags to walk away from

• Percentage-of-spend pricing. Misaligns them with your budget from day one.
• No named human oversight. “The AI does it” with nobody accountable.
• Monthly-deck-only reporting. Polish where you wanted a running record.
• They own your accounts. Portability is non-negotiable.
• Guaranteed rankings or vague “10x” promises. Confidence is fine; fabricated certainty is not.

Ask the seven, listen for specifics, and you will sort the real operations from the wrappers quickly. If an agency answers all seven the way you hoped, you have probably found a good one — whoever it is.