Copilot vs ChatGPT: which AI is right for your business?

Trying to compare Microsoft 365 Copilot vs ChatGPT? They are powerful AI tools with the same underlying intelligence. The difference is context, governance and cost. Understanding how they overlap and where they differ will help you choose the right solution for your users, data and organisation. Ultimately, if you live in Microsoft 365 then Copilot is the natural first choice.

Whether you are drafting emails, analysing spreadsheets or summarising meetings, AI is speeding up productivity in more ways than we could ever have imagined. But there is one question that keeps popping up: should we choose Microsoft 365 Copilot or ChatGPT?

Both are powered by leading AI models, both can generate content, answer questions and automate repetitive tasks, and both continue to evolve at a rapid pace. But comparing them purely on features misses the bigger picture. For most businesses, it is less about which AI is “better” and more about which one fits your existing technology, security requirements and the way your employees already work.

In this guide, we will explain the differences between Microsoft 365 Copilot and ChatGPT, where each product excels, and why many organisations ultimately choose to use both.

What is Microsoft 365 Copilot?

Microsoft 365 Copilot is Microsoft’s AI assistant, embedded directly into the Microsoft applications millions of people already use every day. Rather than asking AI to help in a separate browser window, Copilot appears inside familiar applications, such as Word, Excel, Outlook and Teams. Because it operates within your Microsoft 365 tenant, Copilot understands the context of your organisation, and it only surfaces information users are already authorised to see. You can read lots more about it in our guide to everything you need to know about Microsoft 365 Copilot AI.

What is ChatGPT?

ChatGPT is OpenAI’s conversational AI assistant. It has become one of the world’s most widely used AI tools thanks to its ability to generate text, explain concepts, write code, brainstorm ideas and answer complex questions. Unlike Microsoft 365 Copilot, ChatGPT is not tied to one productivity platform, instead acting as a standalone, general-purpose AI assistant. Business and Enterprise versions also support connections to organisational data through administrator-enabled integrations, including Microsoft 365.

They are more similar than many people realise

One of the biggest misconceptions in the great Copilot vs ChatGPT comparison is that Microsoft and OpenAI are competing AI companies offering completely different technology.

At the time of writing, Microsoft 365 Copilot uses the same GPT-5.5 family of OpenAI models (Instant and Thinking) that powers ChatGPT, and Microsoft has shipped ChatGPT-branded image capability inside Copilot. Microsoft has also introduced support for additional foundation models, including Anthropic Claude, if an administrator enables it.

With both AI platforms effectively sharing the same brain, the question is not “which is smarter?” but rather “where does the intelligence run, what can it see, and how is it governed?” So while Copilot does not use ChatGPT itself, it does use the same underlying models.

Microsoft 365 Copilot vs ChatGPT at a glance

Here are the differences that actually matter.

Microsoft 365 Copilot	ChatGPT
Built directly into Microsoft 365	Standalone AI assistant
Works inside Word, Excel, Outlook, Teams and PowerPoint	Web, desktop and mobile applications
Uses your Microsoft 365 files, emails and meetings (subject to permissions)	Can connect to business data through supported connectors and integrations
Uses Microsoft identity, security and compliance controls, inheriting tenant permissions and Purview	Business and Enterprise plans include administration and security controls
Designed for everyday workplace productivity	Designed for general-purpose AI, creativity, research and coding
Premium per-user add-on licence	Free, Business and Enterprise plans

Data protection and governance: where the real difference lies

As organisations become more confident using AI, the conversation is shifting away from what these tools can do and more towards how they are governed. Questions such as “Who can access company data?”, “How is that access controlled?” and “Can we audit AI usage?” are becoming just as important as the quality of the responses themselves.

Microsoft 365 Copilot is designed to work within your existing Microsoft 365 environment. It automatically respects the permissions users already have, and works alongside the security, compliance and data governance controls you have already put in place. That includes support for Microsoft Purview, which helps your business apply existing policies for data protection, retention, compliance and auditing without introducing a separate governance model.

ChatGPT Business and Enterprise can also connect to Microsoft 365 services such as SharePoint and OneDrive through administrator-enabled connectors, and OpenAI states that business data is not used to train its models by default. However, these integrations represent an additional route to company data that organisations need to configure and govern deliberately. Your IT team will need to consider how access is managed, how usage is monitored and how AI fits within your existing security and compliance policies.

Neither approach is inherently better for every organisation. The key difference is that Microsoft 365 Copilot inherits the permissions, identity management and compliance framework you already operate, whereas connecting ChatGPT to business systems creates a second data path that requires its own governance. For organisations already invested in Microsoft 365, that can make Copilot simpler to deploy and manage as part of an existing security strategy.

Pricing: what does each platform cost?

Cost is naturally part of the Copilot vs ChatGPT decision, but it is important to compare like for like.

Microsoft offers several AI options, each designed for different needs. Copilot Chat is included with many Microsoft 365 business subscriptions and provides access to AI chat capabilities within Microsoft’s ecosystem. Microsoft 365 Copilot, however, is a premium add-on licence that unlocks the full experience across Word, Excel, Outlook, Teams, PowerPoint and other Microsoft 365 applications.

Microsoft raised Microsoft 365 and Office 365 list prices on 1 July 2026. Microsoft pricing and packaging evolve regularly, for example the new E7 suite, so it is worth reviewing the latest offerings when you are comparing costs.

ChatGPT is available in several plans, ranging from free access through to paid Business and Enterprise subscriptions that are priced per user, with Enterprise pricing tailored to your organisation.

When Microsoft 365 Copilot is the right choice

For organisations already invested in Microsoft 365, Copilot is a natural extension of the tools your employees already use. It particularly excels when staff spend much of their day working in Microsoft applications such as Outlook, Teams, Word, Excel, PowerPoint and SharePoint. It is the right choice when work depends on your own documents, emails and meetings, and when compliance is important to you. If you want one supplier and one security boundary, choose Copilot.

Where ChatGPT makes sense

The plus points of Copilot do not make ChatGPT irrelevant. For standalone creative and research work outside the Microsoft environment, ChatGPT remains one of the strongest AI assistants available for tasks that are not necessarily tied to internal company information, such as brainstorming marketing campaigns, writing blog posts and even coding and software development. Because it is not limited to Microsoft applications, it can support a much broader range of creative workflows, as well as giving individual users fast access to new consumer features.

Can businesses use both Copilot and ChatGPT?

Yes. Using both is an increasingly common approach. Rather than viewing Microsoft 365 Copilot and ChatGPT as competitors, many organisations see them as complementary tools. For example, while Microsoft 365 Copilot becomes the trusted assistant for internal documents, Teams meetings, Excel analysis and organisational knowledge, ChatGPT supports research, ideation, writing and coding.

The key to successfully and securely deploying both is establishing clear usage and data policy so that employees understand:

• Which platform to use
• What data can be shared
• How information should be handled
• When human review is required

A well-defined AI policy allows organisations to benefit from both platforms while maintaining security and compliance, and that is something we do every day when supporting our clients with effective Copilot deployment here at Managed247.

Copilot or ChatGPT: which should you choose?

As we have seen, the answer depends less on AI capability than on your existing technology environment.

For organisations already using Microsoft 365, Copilot delivers powerful productivity gains while fitting naturally into existing security, compliance and collaboration tools. For broader research, creativity and specialist tasks, ChatGPT remains an exceptionally capable assistant.

At Managed247, we help organisations make sense of this rapidly changing landscape. Whether you are exploring Microsoft 365 Copilot for the first time, planning a wider AI strategy or looking to deploy AI securely across your business, our specialists can help you identify the right approach, maximise adoption and ensure your investment delivers real business value.

Get in touch to discuss Copilot licensing, deployment and how AI can transform the way your organisation works.

Frequently Asked Questions

• Is Copilot as good as ChatGPT?

  For most business tasks, yes. Microsoft 365 Copilot uses the same family of OpenAI models as ChatGPT, so the difference is less about AI capability and more about context. Copilot works with your organisation’s emails, documents, meetings and files, boosting your employees’ productivity within the Microsoft 365 applications they already use.

• Does Copilot use the same AI model as ChatGPT?

  At the time of writing, yes. Microsoft 365 Copilot runs on the same GPT model family that powers ChatGPT. Microsoft also allows organisations to enable Anthropic Claude models for certain scenarios, giving businesses additional flexibility while keeping AI use within the Microsoft ecosystem.

• Why do companies prefer Copilot over ChatGPT?

  For organisations already using Microsoft 365, Copilot fits naturally into existing workflows. It works inside familiar applications such as Word, Excel, Outlook and Teams, respects existing user permissions, and operates within the Microsoft 365 security, identity and compliance framework that IT teams already manage.

• Can ChatGPT access our Microsoft 365 files?

  Yes, on ChatGPT Business and Enterprise plans, which allow you to connect to SharePoint and OneDrive through administrator-enabled connectors. As with any business system integration, this creates an additional data path that should be governed with appropriate access controls, auditing and security policies. Microsoft 365 Copilot, by comparison, automatically inherits your existing Microsoft 365 permissions and compliance controls.

• Is Copilot included with Microsoft 365?

  Microsoft Copilot Chat is included with Microsoft 365 business subscriptions. The full Microsoft 365 Copilot experience, which provides AI assistance across Word, Excel, Outlook, PowerPoint and Teams, is available as a separate per-user add-on licence.

• What does Microsoft 365 Copilot cost per user in the UK?

  Microsoft 365 Copilot is licensed as a per-user add-on to your Microsoft 365 subscription. Microsoft introduced pricing changes in July 2026 and licensing costs change over time, so speak to the Managed247 team for the latest pricing and licensing advice.

• Can my business use both Copilot and ChatGPT?

  Yes, and many organisations do. A common approach is to use Microsoft 365 Copilot for work involving internal business data and Microsoft 365 applications, while using ChatGPT for research, brainstorming and creative tasks. The key is having a clear AI usage and data governance policy so employees understand which tool to use for different types of work.