Written by
Kody Kendall
AI & Software Engineer | Creator of the Leonardo Coding Agent
An AI automation agency is an outside firm that uses AI to do work your team now does by hand. One label covers three different businesses. The first is a marketing agency that runs your ad and email campaigns with AI tools. The second is an implementation shop that configures automation software you rent, such as Zapier or HubSpot. The third is a software company that builds custom AI tools you own. Each type sells a different thing at a different price. Hire the wrong type and you can pay for months before you notice.
I am a software engineer. I build AI coding agents at LlamaPress. People call us every week after a confusing conversation with an AI agency that turned out to sell something else. The label is the problem, so this guide sorts the label out. It covers what each of the three businesses does, how each one makes money, and the checks that reveal which one a vendor is.
Type 1: The Marketing Automation Agency Runs Your Campaigns
A marketing automation agency plans and runs campaigns for you. The team writes ads, builds email sequences, scores leads, and reports on results. AI changed the speed of that work. Copy drafts arrive in minutes. Audience tests run in parallel. Reports assemble themselves overnight. A digital marketing automation agency is the same business with a focus on online channels only.
You pay a monthly retainer. Retainers vary widely by market and by scope. Many start near $1,000 a month and pass $10,000 for larger accounts as of this writing. The agency works inside your ad and email accounts. When the contract ends, the campaign activity usually ends with it.
Hire this type when your problem is demand. You need more leads, and nobody on your team runs campaigns full time. Do not hire this type to fix a broken internal process. Campaign skills do not build software.
Type 2: The Implementation Agency Configures Tools You Rent
A marketing automation implementation agency sets up software you subscribe to. Common platforms are HubSpot, Marketo, Zapier, Make, and n8n. The agency maps your process, connects the tools, and trains your team. Some also sell managed support after launch.
The pricing has two layers. You pay the agency a setup fee, often a few thousand dollars as of this writing. You also pay the software vendors every month, for as long as you use the tools. Many implementation shops are certified partners of the platforms they recommend. Partners can earn a margin on your subscription. Ask about that margin directly. Disclosure makes it normal. Hiding it is a warning sign.
Hire this type when you already picked your tools and need them wired together well. Know the ceiling before you commit. Rented tools bend your process to fit their templates. When ten automations orbit one spreadsheet, the process has outgrown configuration. At that point you need software shaped like your business.
Type 3: The Custom Builder Ships Software You Own
The third business builds software from scratch. You describe the workflow. The company delivers a working app with a database, logins, and the AI features wired inside. Real examples of the category: a quoting tool that drafts estimates from job records, a client portal that answers questions from your documents, an intake app that chases its own missing fields. The code can live in a repository you control.
Pricing is a project fee, sometimes with hosting or support after launch. Traditional development firms quote $50,000 and up for this kind of build as of this writing. AI coding agents cut that cost hard. A first working version can now land in the low four figures. For a concrete map of what custom AI features look like in practice, read our guide on adding AI to your website, from chat widgets to real workflows.
Hire this type when the process itself is the problem. The work lives in a spreadsheet only one person can run. The steps are unique to your business. No rented tool matches how you actually operate.
How the AI Agency Business Model Works
People searching for an AI agency usually reach one of the three businesses above. Follow the money and the three separate fast. The campaign agency earns a retainer. Its incentive is to stay useful month after month. The implementation shop earns setup fees plus tool margins. Its incentive is to recommend more software. The builder earns a project fee. Its incentive is to finish and hand over.
None of those incentives is dishonest. Each one shapes the advice you receive. Ask a retainer agency about automation and you get a campaign plan. Ask a platform partner and you get a bigger software stack. Ask a builder and you get a build quote. Weigh every recommendation against the AI agency business model behind it, ours included.
How to Pick One
Start from your problem. An empty pipeline points to a marketing automation agency. Tools you bought but never configured point to an implementation shop. A process that breaks daily across spreadsheets and inboxes points to a custom builder.
Then run four checks on any vendor. First, ask what you own when the contract ends. Ad accounts, tool configurations, and source code are three different answers. Second, ask what you will pay monthly after the project, and to whom. A quote that hides permanent subscriptions is incomplete. Third, ask for a small working demo before you sign a large contract. A vendor with real capacity can show progress in days. Fourth, ask who does the work. Some agencies white-label another company's team. Disclosed, that arrangement is common. Hidden, it tells you how the relationship will go.
One more check applies to every type. The vendor should ask detailed questions about how work moves through your business today. A proposal that arrives before anyone understood your workflow describes their product. A proposal that arrives after describes a fix built for you.
Where LlamaPress Sits
LlamaPress is the third type. We build custom software and AI tools. Our AI coding agent is named Leonardo. He writes real Ruby on Rails code, and you watch the build happen in your browser. The code can sync to your own GitHub account. Human engineers stand behind the agent when a problem is genuinely hard.
"An agent that is our business partner, that's saying, based on the data and KPIs, here's where you're doing well and here's where you need to improve."
That is the bar we build toward. We meet one agency owner on a weekly build call. Recent sprints shipped a client-impact dashboard and a pipeline that turns his recorded calls into approved tasks in ClickUp.
Here is what we do not do. We do not run ad campaigns. We do not manage Google Ads or buy media. We do not offer white-label campaign management, and we never touch your client relationships. Agencies hire us to build the tool underneath the service: a reporting app, a client portal, an internal workflow system. The campaigns, the clients, and the strategy stay yours. If you run a creative shop yourself, our piece on AI for design agencies shows how that split works in practice.
Fit matters more than any pitch, ours included. If your problem is lead volume, a campaign agency serves you better than we do. If your problem is an unconfigured HubSpot, hire a certified implementer. If your problem is a workflow trapped in a spreadsheet, that is our lane. Leonardo converts the spreadsheet into working software, and our services team scopes and builds the rest with you.
Build the tool under your workflow
Tell us how work moves through your business today. Leonardo builds the database-backed app and the AI features around it. You own the code. Your campaigns and your clients stay yours.
Prefer to start with a message? Contact us and tell us what you run today.
Frequently Asked Questions
What does an AI automation agency do?
The label covers three different businesses. A marketing automation agency runs ad and email campaigns for you with AI tools. An implementation agency configures automation software you rent, such as HubSpot or Zapier. A custom builder writes AI-powered software that you own. Ask any vendor which of the three they are before you compare prices. The answers are rarely interchangeable.
What is the AI agency business model?
There are three common models. Campaign agencies charge a monthly retainer, so they profit from staying engaged. Implementation shops charge setup fees and can earn margins on the software subscriptions they recommend. Custom builders charge a project fee, sometimes with hosting or support after, so they profit from finishing. Each model shapes the advice the vendor gives you.
What is the difference between a marketing automation agency and an implementation agency?
A marketing automation agency operates campaigns. Its people write the ads, send the emails, and report the results, usually inside your accounts. A marketing automation implementation agency configures software instead. It connects platforms like HubSpot or Make to your process and trains your team to run them. One sells ongoing labor. The other sells setup.
How much does an AI automation agency cost?
Cost depends on which of the three types you hire. Campaign retainers often run from about $1,000 to over $10,000 a month as of this writing. Implementation projects often cost a few thousand dollars, plus the monthly software subscriptions. Custom builds from traditional firms start around $50,000 as of this writing. AI-built custom software can start in the low four figures. Always ask what you keep paying after the engagement ends.
Do I need an AI agency or custom software?
Match the fix to the problem. Hire a campaign agency when you need more leads. Hire an implementation shop when you own good tools that sit unconfigured. Choose custom software when the process itself is broken: the work lives in a fragile spreadsheet, the steps are unique to you, and rented tools keep almost fitting. Custom software costs more up front and less in permanent subscriptions.