How much does AI automation cost a business?

“How much will AI cost us?” gets two unhelpful answers: “almost nothing” from people selling a subscription, and “it depends” from everyone else. The honest answer, from what we see: most small businesses can get real hours back for tens of dollars a month per person, not thousands, as long as they build on software they already pay for. Here’s where the money actually goes.

Prices from Microsoft, OpenAI, Anthropic and each vendor’s own pricing page, checked September 25, 2026. US prices before tax. Vendors change prices often, so check before you buy.

The four things you pay for

On top of these is the one-off cost of setting it up, in your time or a consultant’s. We cover that below.

1. AI assistants

You rarely need a paid seat for everyone. Buy one for the people who spend their day in email and documents, and let the rest use a free tier on their work account. Our comparison of ChatGPT, Copilot and Claude helps you pick. For every Copilot plan, what a small team pays and the contract terms, see Copilot pricing.

2. Automations

Automations are what turn an AI draft into finished work: the quote saved and emailed, the reminder sent, the spreadsheet updated. Our use cases show the common ones step by step, with what each costs.

• On Microsoft 365: Power Automate flows (automations that run on their own) that use the everyday apps (Outlook, Teams, SharePoint, OneDrive, Excel, Forms, Approvals) are included in Microsoft 365 business plans, with no charge per run. Premium steps, such as AI steps, connecting to outside systems or filling in Word templates, need Power Automate Premium at $15 per user per month, paid yearly, or $0.60 a run.
• Without Microsoft 365: tools like Zapier connect thousands of apps. Zapier’s Pro plan starts at $19.99 a month billed yearly for 750 tasks.

Power Automate pricing

Power Automate is the automation tool in Microsoft 365. What you pay depends on which steps a flow uses:

Three things that catch people out:

• One premium step makes the whole flow premium. Add a single AI step and the flow needs Premium or pay as you go.
• The license belongs to the flow’s owner. Flows that run on their own, on a schedule or when an email arrives, run on their owner’s license, so one Premium license usually covers them.
• A Copilot seat doesn’t add Power Automate rights. Neither the free Copilot Chat nor the paid seat includes Premium.

3. Agents and AI steps

This is the part that worries owners most and usually costs least. Microsoft bills it in Copilot Credits, units of AI use that cost $0.01 each:

• An agent that answers from your documents (an AI assistant set up for one job) costs nothing extra for staff with a paid Copilot seat. For staff without one, an answer that searches your files costs about $0.12.
• An AI agent in Copilot Studio that takes a request and saves a record: Microsoft doesn’t charge seat holders who use it inside the company, within fair-use limits. Agents that serve customers, run on their own, or are used by staff without a seat do use credits. We budget $0.10 to $0.20 a conversation, by our estimate.
• An AI step in a flow, such as reading an email and pulling out the order, costs about $0.02 per 1,000 tokens (roughly 750 words) in credits. On top of that, the flow needs a Power Automate Premium license ($15 per user a month) or $0.60 per run, because any flow with an AI step is a premium flow.

What are Copilot Credits?

Copilot Credits are how Microsoft bills AI that runs per use: agents built in Copilot Studio, AI steps in Power Automate, Copilot Cowork tasks, and answers from company files for people without a paid seat. One credit is $0.01. There are two ways to buy them:

• Pay as you go: $0.01 a credit, billed monthly to an Azure subscription, with a spending cap you set. Usually the best start for a small business.
• A capacity pack: $200 a month for 25,000 credits, shared across the business. Unused credits don’t roll over, so it only pays off at steady, high use.

Things that don’t use credits: the free Copilot Chat, flows with no AI step, and simple Copilot Studio agents that only ask set questions and offer buttons when they run inside Teams. The same scripted agent on a website or another channel is billed at the scripted-answer rate below.

Copilot Studio pricing

Copilot Studio is where you build your own agents. There’s no separate license to buy for a small business: an agent that uses AI is billed in Copilot Credits for each thing it does. Microsoft doesn’t charge staff with a paid Copilot seat for agents used inside the company, within fair-use limits. Agents that serve customers, run on their own, or are used by staff without a seat pay these rates:

A typical conversation where an agent takes a request and saves it comes to about $0.10 to $0.20, by our estimate. An agent that answers 500 such requests a month is roughly $100 at the top of that range. Agents that only use set questions and buttons inside Teams are included with Microsoft 365.

To estimate your own agent, try our freeCopilot Studio credits calculator on sierrix.ai.

These rates are for the standard way of building in Copilot Studio. Agents built with the “New experience” switch turned on are billed differently and use credits while you build and test them too.

What does AI Builder cost?

AI Builder is the name for the AI steps inside Power Automate, such as reading a receipt or invoice, or running an AI prompt. Microsoft 365 plans don’t include any AI Builder use, and from November 1, 2026, new and renewed licenses no longer come with AI Builder credits. Instead you pay in Copilot Credits:

• Reading a receipt or invoice: 8 credits a page, about $0.08.
• An AI prompt (summarize, sort or pull details from text): about $0.02 per 1,000 tokens.
• Plus the flow itself: any flow with an AI Builder step is a premium flow, so it needs Power Automate Premium ($15 per user a month, paid yearly) or $0.60 per run.

Example: a flow that reads 100 one-page receipts a month uses about $8 in credits, plus the Premium license.

ChatGPT and Claude have their own developer and automation pricing, also per use. Either way, a few hundred AI steps a month is usually a few dollars in credits, on top of the Premium license.

4. Outside AI services

Some jobs are best handed to a service built for them. The most common is answering the phone:

• AI receptionists start around $29 a month for 60 minutes, or $49 a month for 250 minutes.
• Human answering services start around $250 a month for 50 minutes.

See AI phone answering for businesses for the full comparison.

Two example budgets

Both are for a five-person service business that wants AI to draft estimates, answer common questions and stop missing calls.

Illustrations built from the prices above, not quotes. Your mix depends on your tasks, your volumes and the software you already use.

The one-off setup cost

The subscriptions are the small part. The bigger cost is the time it takes to set things up well: gathering your past documents, writing the instructions, building and testing the automations, and training the team. You can do it yourself with our guides, especially How to build a Copilot agent, or pay someone to build it. Either way, start with one task, prove it saves time, then do the next. Not sure which way to go? See Do it yourself, hire a consultant, or book an assessment?

How to tell if it pays for itself

A simple test: hours saved per month × what an hour of that person’s time is worth, against the monthly cost.

Say a Copilot seat saves your office manager five hours a month drafting quotes and replies, and an hour of their time is worth $30 to the business. That’s $150 of time back for a $18 seat. If a tool can’t show at least that kind of return within a couple of months, drop it or change how you use it.

To run the numbers for your own team, use our freeCopilot cost and payback calculator on sierrix.ai.

Not sure which tasks would save the most? Start with How to find the tasks AI can take off your plate. Our assessment does the same for you and prices every option in plain dollars.