Microsoft Copilot vs ChatGPT for businesses: which is worth it
They're both "artificial intelligence", but for a business they're not the same thing. The right question isn't "which one is smarter", but "which one fits your data, your tools and your goals". Here's how to choose.
"We should use AI in the company." Fine, but which one? In practice the choice almost always comes down to two names: Microsoft Copilot and ChatGPT. They're pitted against each other as if they were the same thing, and that's where the confusion starts: they aren't. They solve different problems, and understanding the difference saves you time, money and a few headaches over your data.
Let's look at them honestly, without cheering for one or the other, and with an eye on what really matters for an SME.
What they are, in short (and why they're not the same thing)
Microsoft Copilot is the artificial intelligence built into Microsoft 365: it lives in Word, Excel, Outlook, Teams and the other tools you (probably) already use. Its strength is that it works on your business data, inside your Microsoft environment, respecting the permissions you've already set. It summarises a mailbox for you, builds a draft from a document, analyses an Excel sheet.
ChatGPT is a general-purpose conversational AI from OpenAI. It's extremely powerful for reasoning, writing, summarising, brainstorming and analysing text you paste into it. But by default it knows nothing about your company: it starts from what you write in the conversation. It's a brilliant, flexible assistant, not integrated into your systems (unless you build something on top of it). The same goes for alternatives like Claude.
In one line: Copilot brings AI into your data; ChatGPT brings your data into the AI. That's a huge difference.
The differences that matter for a business
- Integration. Copilot is inside Microsoft 365 and acts on your files, emails and chats without copy-pasting. ChatGPT is a tool of its own: very useful, but you work in "conversations", bringing it the context yourself (or building an integration via the API).
- Data and security. This is the most delicate point. Copilot stays within the perimeter of your company tenant and respects existing permissions. The consumer versions of ChatGPT don't give the same guarantees: for the business you need the Team/Enterprise plans or the API, with clear rules on what can be entered. Without rules, you get so-called Shadow AI, with customer data ending up where it shouldn't.
- Costs. Copilot is paid via a per-user monthly licence, on top of your Microsoft subscriptions. ChatGPT has a free plan and paid plans (Plus, Team, Enterprise) or pay-as-you-go use via the API. The comparison should be made on the return — the hours saved — not just on the ticket price.
- Use cases. Copilot shines in everyday productivity on documents, email and internal data. ChatGPT (and Claude) shine in open-ended tasks: content, research, analysis, prototyping, and as an "engine" to build custom AI agents.
- Customisation. With ChatGPT/Claude you can create custom assistants, custom GPTs and agents via the API. Within the Microsoft ecosystem you can use Copilot Studio to extend Copilot to your processes. In both cases you need method, not just the tool.
Not "is Copilot or ChatGPT better?", but: where does my data live, and what do I want to achieve? If the answer is "productivity on the documents and emails I already have in Microsoft 365", the path is Copilot. If it's "a flexible assistant for content, analysis or a custom agent", the path is ChatGPT or Claude. The tool follows the need, not the other way around.
When to choose Microsoft Copilot
Copilot makes sense when your company already lives on Microsoft 365 and you want to raise productivity where people actually work: less time on email and reports, faster drafts, analysis of Excel sheets without being a formula expert. The value is greatest when your data is tidy and permissions are well set: otherwise, Copilot amplifies the mess too. We talked about it in Microsoft Copilot for SMEs: is it worth it?.
When to choose ChatGPT (or Claude)
ChatGPT is the right choice when you need flexibility: writing and reworking content, reasoning through a problem, analysing documents you provide, exploring ideas, or building a custom assistant/agent for a specific process. It's not tied to Microsoft, so it adapts to any stack. For business use, though, you need to choose the right plan and define the rules on data.
The real answer: it's often not "one or the other"
The way the question is framed — "Copilot vs ChatGPT" — is misleading. In companies that use AI well, they coexist: Copilot for everyday productivity inside Microsoft 365, ChatGPT or Claude for open-ended tasks and custom agents. It's not a race: it's a toolkit, and each tool does a different thing well. Our job is to pick the right piece for the right problem, not to marry a vendor.
And the data? The point SMEs underestimate
Whatever tool you choose, the question to ask first is: what data can it see, and where does it end up? In Switzerland the new data protection act (nLPD), like the GDPR in the EU, requires transparency and control. Defining who can use what, with which data, isn't bureaucracy: it's what lets you use AI without risks. It's also why "putting things in order first" is worth more than "buying the right tool".
In summary
Microsoft Copilot and ChatGPT aren't rivals to be ranked, but different tools. Copilot brings AI into your Microsoft 365 data and excels at everyday productivity; ChatGPT (or Claude) is a flexible assistant for open-ended tasks and custom agents. The choice depends on where your data lives and what you want to achieve — and often the best answer is to use both, with clear rules on data. What makes the difference isn't the tool, but the method with which you apply it to your process.
The tool follows the need, not the other way around. AFianco helps SMEs choose and adopt the right AI tools — Copilot, ChatGPT, Claude — with practical training and custom automation, starting from your real data and processes. No hype, no lock-in to a single vendor.
Frequently asked questions
What is the difference between Microsoft Copilot and ChatGPT?
Microsoft Copilot is the AI built into Microsoft 365 (Word, Excel, Outlook, Teams): it works on your company's data inside the Microsoft environment. ChatGPT is a general-purpose conversational AI from OpenAI, powerful for text, ideas and reasoning, but by default it doesn't know your company's data. They solve different problems.
Copilot or ChatGPT: which is better for an SME?
It depends on where your data lives and what you need. If you already work on Microsoft 365 and want productivity on documents, email and internal data, Copilot is the natural choice. If you need a flexible assistant for content, open-ended analysis or prototypes, ChatGPT (or Claude) is a better fit. Often the right answer is to use both, each for what it does best.
Is Microsoft Copilot more secure than ChatGPT for business data?
Copilot operates inside your Microsoft 365 tenant and respects existing permissions, so data stays within the company perimeter. The consumer versions of ChatGPT don't offer the same guarantees: for business use you need the Team/Enterprise plans or the API, with clear rules. In any case, what matters is how you configure it and what you put into it.
How much does Microsoft Copilot cost compared to ChatGPT?
Copilot for Microsoft 365 is paid via a per-user monthly licence, on top of your Microsoft subscriptions. ChatGPT has a free plan and paid plans (Plus, Team, Enterprise) or pay-as-you-go use via the API. The cost should be assessed against the return: the hours saved, not just the licence price.
Can I use both Copilot and ChatGPT in my company?
Yes, and it's often the best choice. Copilot for everyday productivity inside Microsoft 365, ChatGPT or Claude for open-ended and creative tasks or to build custom agents. The key is to define clear rules on which data can be used with each tool.