Copilot vs ChatGPT: Which AI Assistant Is Better for Small Businesses?

Copilot vs ChatGPT is one of the most common questions small business owners ask when they start using AI at work. Both are AI assistants that can write, summarise, analyse and answer questions. Both have free versions. And Microsoft’s Copilot has used OpenAI’s technology, which is why many people ask whether Copilot is simply ChatGPT with a different name.

It isn’t. The two products are built for different jobs, sold in different ways, and treat your business data differently. This guide explains the real difference between Copilot and ChatGPT, compares features and pricing, and gives you a simple way to decide which one — or which combination — suits your business.

Quick answer: Copilot vs ChatGPT in one table

Short version: if your business runs on Microsoft 365 and you want AI inside the apps you already use, Copilot usually makes more sense. If you want the most flexible standalone assistant for writing, research, analysis and brainstorming, ChatGPT is usually the stronger choice. Many small teams end up using both.

Is Copilot the same as ChatGPT?

No. This is the most common misunderstanding. Microsoft is a major investor in OpenAI and has used OpenAI models to power parts of Copilot, so the two can feel similar in conversation. But the products differ in three important ways:

1. Where they live. ChatGPT is a standalone app and website. Copilot is woven into Windows, Edge, Bing and — on business plans — Word, Excel, PowerPoint, Outlook and Teams.
2. What they know about you. On a paid business plan, Microsoft 365 Copilot can search your organisation’s emails, files, chats and calendar (only what each user already has permission to see). ChatGPT only knows what you upload, connect or type.
3. How Microsoft tunes them. Microsoft adds its own search grounding, safety layers, business data protection and interface. Answers to the same question can differ noticeably.

So when someone asks “is Copilot the same as ChatGPT?”, the fair answer is: related technology, different products.

The different versions of Copilot (this confuses everyone)

“Copilot” is a brand covering several products. For a small business, these are the ones that matter:

• Copilot (free app and web): a general chat assistant similar to free ChatGPT, available in Windows, Edge and on mobile.
• Copilot in Microsoft 365 Personal and Family: Microsoft has added Copilot features to its consumer Microsoft 365 subscriptions, with usage limits. Useful for sole traders using personal plans.
• Microsoft 365 Copilot Chat: a secure, web-grounded chat included for business users with an eligible Microsoft 365 work account, with enterprise data protection.
• Microsoft 365 Copilot (paid business add-on): the full version that works inside Word, Excel, PowerPoint, Outlook and Teams and can use your organisation’s data. Microsoft lists enterprise pricing at around $30 per user per month (billed annually), and has introduced a lower-priced Copilot Business option for smaller organisations of up to 300 users. Check Microsoft’s pricing page for current UK prices.

Microsoft has also retired its older Copilot Pro consumer subscription in favour of bundling Copilot into Microsoft 365 consumer plans, so older articles may be out of date.

The versions of ChatGPT

• Free: everyday chat, with limits on advanced features such as file uploads, image generation and deep research. May include ads.
• Go: a low-cost tier with higher limits than Free.
• Plus: the standard paid plan for individuals, with access to more capable models and features such as Projects, custom GPTs and deep research.
• Pro: a premium plan for very heavy users.
• Business (formerly Team) and Enterprise: workspace plans with admin controls, and business data excluded from model training by default.

For current prices in pounds, see our guide to ChatGPT pricing in the UK.

Copilot vs ChatGPT: feature-by-feature comparison

Writing emails and documents

Both write well. ChatGPT is generally more flexible with tone and creative tasks, and handles long back-and-forth editing sessions smoothly. Copilot’s advantage is convenience: in Outlook it can draft a reply using the thread you’re looking at, and in Word it can create a first draft from your existing files. If you write mainly inside Office, Copilot saves steps. If you write for many channels — web copy, social posts, adverts — ChatGPT is usually quicker to work with.

Working with spreadsheets

Copilot in Excel can explain formulas, suggest charts, highlight trends and help build formulas inside your workbook. ChatGPT can analyse uploaded spreadsheets, run calculations, and produce charts and cleaned files for download. For quick analysis of an exported CSV, ChatGPT is excellent; for ongoing work in a live Excel file your team shares, Copilot is more natural.

Meetings and email overload

This is where paid Microsoft 365 Copilot is hardest to beat. It can summarise Teams meetings, list action items, catch you up on missed discussions and summarise long email threads. ChatGPT can summarise a transcript you give it, but it doesn’t sit inside your meetings and inbox by default.

Research and web answers

Both can search the web and cite sources. ChatGPT’s deep research feature produces long, structured reports from many sources. Copilot’s web answers draw on Bing search. For in-depth research, many users prefer ChatGPT or a research-focused tool like Perplexity.

Images and creative work

Both can generate images. ChatGPT’s image generation is widely used for marketing visuals and edits; Copilot also offers image creation through Microsoft Designer tools. For branded marketing designs, pair either with Canva.

Custom assistants and automation

ChatGPT lets you build custom GPTs and Projects with your own instructions and files — for example, a “customer reply assistant” loaded with your policies. Microsoft offers Copilot agents and Copilot Studio for building assistants connected to business systems, which is powerful but more technical. For no-code workflows between apps, see our Zapier AI guide.

Pricing compared

Prices change often and vary by country and billing period, so treat these as a guide and check the official pages before buying:

The key cost difference: Microsoft 365 Copilot is an add-on — you need a qualifying Microsoft 365 business plan first, then pay for Copilot on top. ChatGPT Business is standalone. If you already pay for Microsoft 365 Business, adding Copilot for a few key staff can be cost-effective; if you don’t use Microsoft 365, ChatGPT is usually cheaper and simpler.

Privacy and data protection

For UK businesses, this matters as much as features.

• Microsoft 365 Copilot (business): operates within your Microsoft 365 service boundary and respects existing file permissions. Microsoft states that prompts and responses in its enterprise products are not used to train its foundation models. The flip side: if your file permissions are messy, Copilot may surface documents people technically had access to but never knew existed. Tidy up sharing settings before rolling it out.
• ChatGPT Business and Enterprise: business data is not used to train models by default, with admin controls and data retention settings.
• Free consumer versions of both: have weaker controls. Don’t paste customer personal data, financial details or confidential documents into free consumer tools.

Whichever you choose, update your privacy policy if customer data is processed, and write a short internal AI use policy so staff know what can and can’t be shared.

Is Copilot better than ChatGPT?

It depends on the job:

• Choose Copilot if your team spends its day in Outlook, Teams, Word and Excel; you want AI that understands your emails, files and meetings; and you already pay for Microsoft 365 Business.
• Choose ChatGPT if you want the most versatile assistant for writing, marketing, research and analysis; you use Google Workspace or a mix of tools; or you want to start cheaply with one or two users.
• Use both if you want Copilot for inbox and meeting productivity and ChatGPT for content, research and creative work. Many small businesses find this combination the most practical.

Real small-business scenarios

A five-person accountancy practice on Microsoft 365: Copilot for summarising client email threads and Teams calls, and drafting letters in Word from templates. ChatGPT Plus for one partner who writes the newsletter and marketing content.

An online shop using Shopify and Google Workspace: ChatGPT for product descriptions, customer replies and campaign ideas. Copilot adds little unless the team moves to Microsoft 365.

A trades business with a busy owner: the free Copilot app on a Windows laptop or ChatGPT on a phone for quotes, emails and job descriptions. Upgrade only when limits get in the way.

How to test both in one week

1. Pick five real tasks: a customer email reply, a quote, a spreadsheet question, a meeting summary and a social post.
2. Run each task in free Copilot and free ChatGPT with the same prompt.
3. Score each answer for accuracy, tone and how much editing it needed.
4. Note which tool fits your existing apps with the least friction.
5. Upgrade only the tool that won on the tasks you do most often.

For better prompts, see how to use ChatGPT effectively — the same prompt techniques work in Copilot.

Frequently asked questions

What is the difference between Copilot and ChatGPT?

ChatGPT is OpenAI’s standalone assistant. Copilot is Microsoft’s family of assistants built into Windows, Edge and Microsoft 365, which on business plans can use your organisation’s emails, files and meetings. They share some underlying technology but are different products.

Is Copilot free?

Yes, there is a free Copilot app and web version, and business users with eligible Microsoft 365 accounts get Copilot Chat. The full Microsoft 365 Copilot that works inside Office apps with your company data is a paid add-on.

Is Copilot better than ChatGPT for Excel?

For working directly inside a live Excel workbook, yes — Copilot is built into Excel. For analysing an exported file quickly, ChatGPT is equally strong and often more flexible.

Can I use ChatGPT inside Microsoft Word?

Not natively in the same way as Copilot. You can copy and paste between them, use ChatGPT’s own document features, or connect tools through automation services.

Which is safer for business data?

Both offer business plans with data protection and no training on your business data by default. Free consumer versions offer less control. Always check the current terms and settings for the plan you use.

Copilot vs ChatGPT vs Gemini — which should I pick?

If you use Microsoft 365, start with Copilot. If you use Google Workspace, Gemini is the natural fit. If you want a standalone all-rounder, choose ChatGPT. See also our comparison of Claude vs ChatGPT.

The bottom line

The Copilot vs ChatGPT decision comes down to where your work happens. Copilot is strongest as an assistant inside Microsoft 365, working with your emails, files and meetings. ChatGPT is strongest as a flexible, standalone assistant for writing, research and creative work. Test both on your real tasks for a week, then pay only for the one that saves you the most time.

Related reading

• Claude vs ChatGPT: Which AI Is Better for Small Businesses?
• How to Use ChatGPT Effectively in a Small Business
• ChatGPT Pricing UK: Free vs Go vs Plus vs Pro vs Business
• AI Customer Service: Beyond the Frustrating Chatbot

*Prices and features change frequently. We last checked official Microsoft and OpenAI information in September 2026.*