Microsoft Copilot
Vs. ChatGPT
Microsoft Copilot vs. ChatGPT: Which AI Assistant is Right for Your Business?
In the rapidly evolving world of artificial intelligence (AI), businesses are constantly seeking tools that can enhance productivity, streamline processes, and improve decision-making.
Two of the most talked-about AI tools in 2025 are Microsoft Copilot and ChatGPT. While both are powered by advanced language models, they serve different business needs. In this blog, we’ll provide a detailed comparison between Microsoft Copilot and ChatGPT, helping you understand their key differences, use cases, and benefits.
What is Microsoft Copilot?
Microsoft Copilot is an AI-powered assistant embedded directly within Microsoft 365 applications like Word, Excel, Outlook, Teams, and PowerPoint.
Copilot is designed to enhance productivity in Microsoft 365 by assisting with document creation, email summarization, data analysis, and meeting preparation - all within the apps you already use
Key Features of Microsoft Copilot:
- AI for Microsoft 365: Seamlessly integrates with Word, Excel, Teams, Outlook, and PowerPoint
- Contextual Support: Reads and interacts with your files, calendars, and emails
- Enterprise Security: Operates within your organization’s Microsoft 365 security boundary
- Real-Time Assistance: Offers instant suggestions and automations inside familiar Microsoft tools
What is ChatGPT?
ChatGPT, developed by OpenAI, is a versatile AI chatbot and content generation tool that can support businesses in a wide range of tasks such as writing, coding, brainstorming, customer service, and more.
ChatGPT is accessible via browser, mobile apps, desktop, and APIs, making it a flexible AI solution across platforms
Key Features of ChatGPT:
- AI-Powered Content Generation: Ideal for drafting emails, writing blogs, and summarizing information
- Multi-Industry Support: Used for marketing, software development, customer support, and more
- Custom GPTs: Businesses can create tailored AI assistants using ChatGPT’s API and custom GPTs
- Cross-Platform AI: Available outside of Microsoft 365, making it adaptable for diverse workflows
Microsoft Copilot vs. ChatGPT: Feature Comparison
Feature | Microsoft Copilot | ChatGPT |
---|---|---|
Primary Use Case | Embedded AI in Microsoft 365 apps | Versatile AI chatbot and content generator |
Best For | Boosting productivity in Microsoft apps | Creative writing, coding, customer service, API integration |
Integration | Native in Word, Excel, Outlook, Teams, PowerPoint | Browser, desktop, mobile, API, CRM integrations |
Data Access | Access to files, calendars, and emails within Microsoft 365 | No automatic access to files; user-provided input only |
Security | Built-in Microsoft 365 security and compliance | Secure via OpenAI; API access requires careful governance |
Customization | Minimal – Microsoft-controlled | Highly customizable via ChatGPT plugins, API, custom GPTs |
Licensing/Costs | Requires additional Microsoft Copilot license (~£25–£30 per user/month) | Free and paid tiers; Pro version (~£20 per month as of 2025) |
Advantages of Microsoft Copilot for Business
- Streamlined Microsoft 365 Workflows: Copilot excels at automating routine tasks inside Microsoft Word, Excel, and Outlook.
- Time-Saving Email Summaries: Copilot summarizes long email threads and can draft responses directly in Outlook.
- Enhanced Productivity in Excel: Use Copilot to analyze large datasets and automate formula creation.
- Enterprise-Grade Security and Compliance: As part of the Microsoft ecosystem, Copilot benefits from built-in data security and privacy controls
Advantages of ChatGPT for Business
- Versatile AI Assistant: ChatGPT can be used for writing, coding, market research, customer support, and more
- Highly Customizable GPTs: Build custom GPTs for specific departments or workflows using ChatGPT’s API
- Supports Third-Party Integrations: Easily connect ChatGPT with CRMs, websites, customer service platforms, and internal systems
- Excellent for Creative Content: Ideal for marketing teams, content creators, and developers who need AI-powered idea generation
Limitations of Microsoft Copilot for Business
- Only Works Within Microsoft 365: Less useful if your organization uses Google Workspace or other tools
- Additional Licensing Costs: Requires extra per-user subscription on top of Microsoft 365 plans
- Limited Customization Options: You can’t build your own Copilot or extend it far beyond Microsoft’s roadmap
Limitations of ChatGPT for Business
- Limited Contextual Awareness: Doesn’t automatically know your calendar, files, or internal data without manual input
- Security Considerations: Care is needed when sharing sensitive data, especially if using the public web version
- Prompt Quality Affects Results: Requires well-crafted prompts for best outcomes
Copilot vs. ChatGPT: Which is Right for Your Business?
The decision often comes down to how your business operates:
Choose Microsoft Copilot if:
- You are heavily invested in Microsoft 365
- You need AI integrated directly into your daily workflows
- You prioritize enterprise security and regulatory compliance
- You want to speed up document processing and email management
Choose ChatGPT if:
- You need a flexible AI that can integrate across multiple systems
- You want AI for creative tasks, coding, and customer engagement
- You plan to use AI outside of Microsoft 365
- You need API access for custom business solutions
Can You Use Both ChatGPT and Copilot?
Yes! In fact, using both tools together can provide the best of both worlds.
Microsoft Copilot can supercharge productivity within your Microsoft 365 apps, while ChatGPT can enhance creativity, customer support, and integration with wider business systems.
Final Thoughts
Choosing between Microsoft Copilot and ChatGPT depends on your business goals, workflows, and technology stack.
Copilot is best for boosting productivity within Microsoft 365, while ChatGPT is best for flexible, creative, and API-driven tasks.
If you’re unsure which solution is right for you, contact the MirrorSphere team. We specialise in helping businesses unlock the full potential of AI in the workplace.