Microsoft Copilot or ChatGPT: which fits your SMB?

Copilot or ChatGPT: why people compare them

At work, Copilot and ChatGPT get named in the same breath almost every time. And that's usually where the comparison goes wrong. People line up feature lists, tick boxes, and pick based on what's cheaper or which logo they know better.

That's the wrong question. They aren't competing for the same spot; they have different jobs. Copilot is a productivity layer on top of the work your team already does in Office. ChatGPT is an open space you go to when you want to make something. Different things, different place in your day.

A lot of SMBs I talk to make the wrong call, or pick one when they actually need both. This piece helps you make a concrete choice by explaining what the tools are and which one fits which kind of business.

What is Microsoft Copilot, really?

Copilot isn't a product, it's a brand. Microsoft 365 Copilot, GitHub Copilot, Sales Copilot, Studio Copilot: all different things under the same name. For SMBs it's almost always about Microsoft 365 Copilot, the assistant that lives in Word, Excel, PowerPoint, Outlook and Teams.

Under the hood, Copilot runs on GPT-4 (and newer models) via Azure OpenAI, with a Microsoft security layer on top. The real value isn't in the model, it's in the Microsoft Graph. Copilot sees your email, your calendar, your Teams chats, your SharePoint and your OneDrive. Ask "summarise last week's discussion" and it knows which discussion you mean. That's the difference with a standalone chatbot where you have to paste everything in.

Hosting is on Azure, with EU data residency by default and a solid GDPR setup for business tenants. Microsoft already has your data, so adding Copilot doesn't add a new party to the picture. For SMBs worried about data sovereignty, that saves a pile of contract work.

Pricing sits around $30 per user per month for Microsoft 365 Copilot, on top of your M365 E3 or E5. There are cheaper variants now too, like Copilot Business and Copilot Pro. Rates shift, so check the current list before you decide.

Strong at: anything that happens inside Office. Excel formulas, summarising email threads, building a PowerPoint from a brief, summarising meetings in Teams. Time savings you feel every day.

What is ChatGPT, really?

ChatGPT is OpenAI's flagship. Four flavours: free, Plus for individuals, Team for groups, Enterprise for larger organisations. Under the hood you get GPT-5 and GPT-4 models, with DALL-E for images and Whisper for audio built in.

Hosting is in the US. EU data residency has been an option since 2025, but only on Enterprise, Edu and the API. On Plus and Team, US hosting is still the default. For customer or employee data, that's a point to watch. Since Plus, input isn't used to train the models anymore, which takes a big worry off the table, but it doesn't change where the data physically sits.

Pricing sits around $20 per user per month for Plus, Team in the same price band or a bit higher, Enterprise on a custom quote. For a team of 10 on the Team tier, you're looking at a few hundred euros a month.

Strong at: open conversations without context baggage, image generation via DALL-E, code, voice mode, and Custom GPTs (small purpose-built bots you set up per team or per use case). It's the workbench where you make things, not the assistant looking over your shoulder.

Side-by-side comparison

Two things the table doesn't show. On pure Dutch writing quality, ChatGPT is ahead, especially on creative work. Inside Office, Copilot wins because it knows what you're working on. A feature matrix doesn't explain that difference; the kind of work you do does.

When do you pick Copilot?

Copilot is the obvious choice if your organisation already runs fully on Microsoft 365 (E3 or E5), your people mainly work in Word, Excel, Outlook and Teams, and you need GDPR and EU data residency without an Enterprise budget. Copilot's value is in its integration with Power Automate, its IT governance options, and the context it gets from email and calendars.

For finance, HR, accountants and general office work that runs on Office, this is direct productivity gain. Excel formulas you'd otherwise have to look up yourself. A 50-message email thread summed up in two lines. Not sexy, but worth money every day.

When do you pick ChatGPT?

ChatGPT is the obvious choice if you generate a lot of text for marketing, content or communication, image or code plays a role, or you want open conversations without M365 context for brainstorming and research. Its upsides include Custom GPTs, independence from the Microsoft ecosystem, and faster feature updates.

Marketing and content teams usually pick ChatGPT (or Claude). Its writing quality is stronger and image generation is built in, which makes it feel more natural for longer creative pieces. See also AI in marketing and content for how you make this operational.

Neither is universally better. Copilot wins inside Office, ChatGPT in creative and open work. Most SMBs benefit from both.

The hybrid approach (often the best answer)

In practice, most conversations about this don't end in a choice, they end in a combination. M365 Copilot for admin, productivity and everything inside Office. ChatGPT Team (or Claude Team) for creative work, content, research and open conversations. On top of that come specific tools now and then: a local model for sensitive data, GitHub Copilot for developers, Recraft or Midjourney for images.

Sounds expensive. Do the math: $30 plus $25 per user per month for the base setup. For most SMBs, that's not a bottleneck. The win is that your people use the right tool for each task, instead of getting stuck because one tool is missing the context of the other.

Real-world cases by company type

10-FTE marketing agency without M365. ChatGPT Team for content and imagery, maybe Claude Pro per person for long writing jobs. No Copilot, because there's no M365 base and for pure content production it adds nothing.

25-FTE accounting firm on M365. Copilot for Excel, Outlook and Teams, because that's where the work happens. Plus a handful of standalone ChatGPT or Claude licences for the people who regularly write longer pieces. GDPR covered for the bulk of it by Copilot.

50-FTE tech company on M365. Use Copilot for general productivity, GitHub Copilot for developers, and separate licences (ChatGPT/Claude) for marketing and design. Three tools, cleanly split by function, nobody fighting over the same seat.

5-FTE startup without M365. ChatGPT Plus per person, maybe Claude alongside for longer documents. Copilot has no use here because the M365 context that makes it valuable isn't there.

What about privacy and GDPR?

For many SMBs, this weighs heaviest. The practical state of play in 2026.

With Copilot, Microsoft Graph data stays inside your tenant and EU hosting via Azure is standard. For SMBs with GDPR concerns, this is the least-hassle route. Microsoft already has your email and documents, so switching Copilot on doesn't add another party to your processor register. That's an easier administrative spot to be in.

With ChatGPT, input hasn't been used for model training since Plus, an important guarantee. But hosting stays in the US unless you're on Enterprise or the API with EU residency. For customer data, personal data or contracts in a regular Team account, that's something you'll want to loop your Data Protection Officer in on.

It's not black and white. ChatGPT on Team is safer than a free chatgpt.com account, but less locked down than Copilot in M365 Enterprise. What fits depends on what kind of data you process. For a deeper overview alongside these two, see ChatGPT alternatives for SMBs.

AI literacy: whichever you pick

From February 2025 the AI Act (article 4) requires your people to be AI-literate if they use AI at work. That applies to Copilot, to ChatGPT, and to everything in between. Buying an expensive tool without your team knowing how to handle prompts and output sensibly and what data they're allowed to feed in, is wasting money and creating a compliance risk in one move.

Run basic training at rollout. Not a three-day workshop, half a day where the team learns: what can I do with it, what not, what are the rules inside our company, how do I write a useful prompt. See AI Act art. 4 for SMBs for the legal background, and AI training for your team for how DataDream approaches this.

Which fits your business?

The choice between Copilot and ChatGPT depends on your team's work, data sensitivity, and existing software. DataDream helps SMBs make that call: which combination, how you roll it out, how you keep it GDPR-compliant, and how you bring your team along.

For deeper ChatGPT context (Dutch quality, prompts, GDPR routes), see ChatGPT in Dutch: a guide for SMBs and scale-ups. For Copilot Studio (the Power Platform low-code agent builder) versus custom agents, see Copilot Studio: a guide for Dutch businesses.

Not sure which one fits? Take the free AI scan to see where your biggest opportunities are, or request an AI Quickscan for tailored advice.