Copilot vs ChatGPT: which AI tool suits your work?

Copilot vs ChatGPT: the main difference is not the underlying AI model, which is largely the same, but where you use them. Copilot works inside your Microsoft environment and has access to your emails, documents and calendar. ChatGPT works as a standalone tool, separate from your workplace, and is more flexible in what you can do with it.

In practice, you notice that difference quickly. Copilot is stronger when you are already in Word, Outlook or Teams and want help without switching apps. ChatGPT delivers better results on open tasks: writing a text, thinking through an approach, summarising information from different sources. Below, I compare both tools on the points that matter for your daily work.

Copilot vs ChatGPT comparison table

The comparison table below summarises the main differences between Copilot and ChatGPT. Use it as a quick reference, and read the sections below for the reasoning behind each point.

What is the difference between Copilot and ChatGPT?

Microsoft Copilot and ChatGPT both run on OpenAI’s GPT models. Microsoft 365 Copilot also offers Anthropic’s Claude models, such as Sonnet 5.5, although these are off by default in the EU (except in Word, Excel and PowerPoint for tenants created after 25 March 2026) and fall outside the EU Data Boundary. Microsoft is a major investor in OpenAI, and the technology under the bonnet overlaps heavily. The difference is in the packaging.

ChatGPT is a standalone chatbot. You open it in the browser or the app, give an instruction and get output. It does not matter what other software you use: ChatGPT works anywhere. That independence is both its strength and its limitation. ChatGPT knows nothing about your work context unless you enter it yourself.

Microsoft Copilot is not a single product but a collection of AI features within the Microsoft ecosystem. That alone is the biggest source of confusion. There are several variants that differ considerably from each other, and Microsoft regularly reshuffles the line-up.

The free Copilot is a chatbot comparable to ChatGPT. You can ask it questions and have it generate text, but it lacks integration with Microsoft apps and you get lower priority than paying users.

For individual use with Office integration, the route for a long time was Copilot Pro at $20 a month, but that separate subscription is no longer sold and support ended on 1 August 2026. Microsoft names Microsoft 365 Premium, €22 a month in the Netherlands, as the option for heavy Copilot use. It bundles Copilot with Word, Excel, PowerPoint, Outlook and storage. Copilot in the desktop apps of Word, Excel, PowerPoint, Outlook and OneNote is also included in Microsoft 365 Personal and Family, with 60 AI credits a month for the subscription holder.

For organisations, Microsoft 365 Copilot comes in two business tiers: Copilot Business for organisations with up to 300 users at €18.20 per user per month billed annually, and the Enterprise version at €26 per user per month billed annually for larger organisations. Both are excl. VAT and include full access to company data via Microsoft Graph.

That distinction matters. If you compare the free Copilot with ChatGPT Plus, you are comparing two very different products. Copilot’s strength lies in its integration with your workplace, and you only get that with the paid versions.

Copilot vs ChatGPT for daily work

In daily work, Copilot and ChatGPT complement each other more than they compete. ChatGPT is the logical choice for writing, brainstorming and tasks where flexibility counts. Copilot adds value when you work in a Microsoft environment and want to summarise or process something quickly without switching apps.

Writing and editing. ChatGPT usually delivers better output on open writing tasks. It generates longer texts, offers more variety in style and lets you work towards a result iteratively through a conversation. Copilot in Word is useful for rewriting a paragraph or summarising a long document, but for a first draft of a report or proposal, ChatGPT is the better choice.

Email and meetings. Here Copilot wins convincingly, provided you have the business version. Summarising an email thread in Outlook, pulling action points from a Teams meeting, drafting a reply based on earlier correspondence: these are tasks Copilot carries out directly in your workflow. With ChatGPT you would first have to copy and paste everything, and in practice that is a step you tend to skip.

Data analysis. Copilot in Excel can suggest formulas, spot patterns and generate charts within your working file. ChatGPT can also analyse data if you upload a file, but the result sits apart from your spreadsheet. You have to put the output back manually. If you work with Excel every day, Copilot is more practical here.

Research. Both tools search the web, but neither is the best option here. ChatGPT often gives more detailed answers, while Copilot adds source citations via Bing by default. For serious research where you want to consult and check several sources, a specialised tool such as Perplexity is stronger than both.

Brainstorming and creative work. ChatGPT acts as a sparring partner you can steer with follow-up questions. Exploring scenarios, testing ideas, asking for feedback on a strategy: ChatGPT is noticeably better at that. Copilot is more geared to structured tasks with a clear input and output, and often gives shorter, less nuanced answers to open questions.

Coding. For coding, the balance is different from writing. ChatGPT with Codex is a strong all-rounder for writing, debugging and explaining code in almost any language. With GPT-6 Astra, the heaviest model from Plus upwards since September 2026, that has been extended further to agentic and computer-use tasks. GitHub Copilot, a separate Microsoft product not to be confused with Microsoft Copilot, is built specifically for developers and works directly in code editors such as VS Code. For professionals without a technical background this difference matters less, but it is good to know that ‘Copilot for coding’ is a different product from the Copilot you come across in Word and Outlook.

Where Copilot and ChatGPT fall short

Their makers present Copilot and ChatGPT as productivity boosters. Sometimes they are, but not always. If you use them every day, you soon learn their limitations.

Copilot is closely tied to the Microsoft ecosystem. If you work with Google Workspace, Notion or other tools, it offers little beyond the chatbot function. Its output on free writing tasks is often shorter and more superficial than ChatGPT’s. Several independent comparisons confirm that picture. And the free version is of limited use: without the integration with Microsoft apps, you miss exactly the part that sets Copilot apart.

ChatGPT is an island. You have to supply all the work context you need by hand. ChatGPT has no access to your emails, documents or calendar unless you upload them or connect them via integrations (available on the business plan). The result is more copying and pasting, and an extra step between AI output and your final work product, with more chance of missing context. The pricing structure has also become more complex: seven plans (Free, Go, Plus, Pro, Business, Enterprise and Edu), with three Pro levels from €103 a month and two kinds of Business seat, do not always make it clear which plan you need.

Privacy. On the free version of ChatGPT, your input may be used for model training by default, unless you switch this off in the settings. With ChatGPT Business and Enterprise, your data is not used for training. Microsoft 365 Copilot works within your Microsoft tenant and does not use your data for training either. But Copilot can access all company information that you as a user have rights to. That is convenient, but it requires permissions within your organisation to be set up properly. Without that, your organisation runs the risk of Copilot retrieving information that is accessible to the user but was never meant for them.

A shared limitation. Both tools hallucinate: they sometimes generate information that looks convincing but is factually wrong. When I used ChatGPT intensively for my SEO work, I consistently came across search volumes and sources that turned out not to exist, even though they sounded plausible. That is not a bug that will be fixed; it is a property of how large language models work. Always check the output before you use it, whichever tool you choose.

Copilot vs ChatGPT: the free versions compared

Copilot and ChatGPT both offer a free version, but the differences are big enough to influence your choice.

Since October 2026 the free ChatGPT has run on GPT-6 Luna and offers unlimited text conversations. Limits still apply to file uploads, images and the other tools, so you have to use features such as Deep Research sparingly. Since late August 2026 the free version has also shown ads in the Netherlands. You can change the interface language, and ChatGPT handles and writes languages other than English without problems.

The free Copilot works through the browser, the Copilot app or Microsoft Edge. You can ask it questions and have it generate text. Copilot searches the web via Bing by default and adds sources to its answers. The downside: at peak times you get lower priority as a free user, so response times go up. The free version offers no integration with Microsoft 365 apps.

The free versions are fine as a starting point for getting to know both tools. The free ChatGPT currently offers more room for text work, because the number of conversations is no longer throttled. But Copilot’s real value lies in the paid versions with Microsoft integration, and you cannot judge those from the free version. If you want to compare them seriously, test both tools in the paid version for at least a month, preferably with real work tasks.

Copilot vs ChatGPT Plus compared

ChatGPT Plus costs $20 a month (€23 in the Netherlands) and gives access to GPT-6 Sol, GPT-6.1 Sol, GPT-6 Astra and the GPT-5.6 models, higher message limits, Deep Research, image generation and Codex for coding. The interface is ad-free. Custom GPTs are not a permanent part of that package: OpenAI is ending them on 11 December 2026 on all plans and pointing users to Plugins. So if you still want to create a custom GPT now, you are building on a feature with an end date. At $20 a month, this is one of the strongest AI subscriptions on the market.

On the Copilot side, the comparison has changed now that Copilot Pro is no longer sold. For individual use with Office integration, you now end up with Microsoft 365 Personal or Family, with 60 AI credits a month for Copilot in the apps, or with Microsoft 365 Premium, €22 a month in the Netherlands, with higher limits and the full Office suite and storage on top of Copilot. The advantage still lies entirely in the integration: you work in the app, without copying and pasting.

For free writing, brainstorming or complex analysis, ChatGPT Plus offers more possibilities. Microsoft 365 Premium is particularly valuable if you work with Microsoft apps every day and want to speed up that workflow, and it has the added advantage of replacing the full Office suite rather than just adding AI to it.

At team level, the prices shift. ChatGPT Business costs €26 per user per month for a Standard seat billed monthly, or €21 billed annually, with admin tools and the assurance that data is not used for model training. Premium seats with five times as much usage cost €130 per user per month billed monthly, or €105 billed annually. Microsoft 365 Copilot now has two business tiers: €18.20 per user per month billed annually for organisations with up to 300 users, and €26 per user per month billed annually for the Enterprise version. Both are excl. VAT and are add-ons to an existing M365 subscription, with full integration and access to company data. Check the official pricing pages for current rates, as this segment is changing fast.

Is Copilot better than ChatGPT? When to choose which

Choosing between Copilot and ChatGPT does not depend on which tool is ‘better’, but on what your working day looks like.

Choose Copilot if your organisation works with Microsoft 365 and you want AI support that plugs straight into your existing workflow. Summarising meetings, drafting emails, analysing data in Excel: these are tasks where Copilot adds value that ChatGPT cannot match, because ChatGPT has no access to that company data.

Choose ChatGPT if you want a versatile AI assistant that is not tied to one ecosystem. For writing, brainstorming, coding and creative tasks, ChatGPT offers more flexibility and better output. It also works better if you use several tools and platforms rather than Microsoft alone.

For many professionals, the honest conclusion is that both tools deserve a place in how they work. My years at major banks gave me one principle that applies directly here: nothing goes out the door without a second check. In AI work, that translates into a fixed way of working with checkpoints, where you test AI output before you share or send it. So the question is not so much which tool you choose as how you use it. A good way of working with the ‘wrong’ tool gives better results than the ‘right’ tool without structure.

Using Copilot and ChatGPT together

In practice, it is not an either/or choice. Many professionals use Copilot and ChatGPT side by side. They use ChatGPT to write a first version and Copilot to finish it off in Word, or ChatGPT to think through an approach and Copilot to summarise the meeting where you discuss it.

Whichever tool you choose, the result depends on how you work with it. A focused, well-worded instruction gives better output than the best tool with a vague question. And every output deserves a critical look before you share, send or publish it. Since Google’s core update of December 2025, I have seen on benchmark sites I follow that traffic to AI content without its own perspective and editing has dropped substantially. That trend underlines the same point: the tool supplies the raw material, you add the value that makes the work publishable.

Want to use ChatGPT professionally with repeatable workflows and checkpoints? In LearnLLM’s ChatGPT Course you build that way of working using tasks from your own job.

Frequently asked questions about Copilot vs ChatGPT

When organisations choose between Copilot and ChatGPT, the lesser-known parts of Copilot also come into play.

Do you need a Microsoft 365 Copilot licence for Copilot Chat?

No, you do not need a Microsoft 365 Copilot licence for Copilot Chat. According to Microsoft, the basic version comes with eligible Microsoft 365 licences and offers enterprise data protection for work and school accounts. Copilot Chat mainly draws on the web and files you add yourself. You only get broad searching of company data via Microsoft Graph with the paid Copilot licence.

What is Copilot Studio?

Copilot Studio is Microsoft’s low-code environment in which you build AI agents and workflows and connect them to your organisation’s data and systems. You publish those agents in channels such as Microsoft Teams and websites. Copilot Studio therefore plays a role similar to a custom GPT in ChatGPT, with its own licensing terms that depend on the type of agent.