Microsoft 365 Copilot vs Google Workspace: which fits your business?
The two most widely used cloud productivity suites with AI for SMEs compared: costs, AI features, GDPR compliance and the decision criterion that matters most.
- Microsoft 365 Copilot is an add-on at indicatively $30 per user per month on top of M365 Business Standard (indicatively €12.50/user/month). Google Workspace Business Standard including Gemini AI costs indicatively €11.50 per user per month. Google Workspace is cheaper if AI must be included. Check current pricing at microsoft.com and workspace.google.com.
- The choice is almost always ecosystem-driven: if you already work in Gmail and Drive, choose Google Workspace. If you already work in Word, Outlook and Teams, choose Microsoft 365 Copilot. Switching costs more than the monthly price difference due to migration time and training.
- Both platforms process EU customer data in EU data centres and offer a Data Processing Agreement (DPA). Neither uses your data to train AI models. Both require role-specific employee training under EU AI Act Article 4 (in force 2 February 2025).
What is the difference between Microsoft 365 Copilot and Google Workspace?
Microsoft 365 Copilot and Google Workspace are the two most widely used cloud productivity suites with built-in AI for SMEs. Microsoft 365 Copilot is an add-on at indicatively $30 per user per month on top of an existing M365 subscription; total costs land at indicatively $42 to $45 per user per month. Google Workspace Business Standard, including Gemini for Workspace, costs indicatively €11.50 per user per month with no separate AI add-on. Both suites cover email, cloud storage, video conferencing and word processing. The core difference is architectural: Microsoft 365 is desktop-app-driven with cloud synchronisation; Google Workspace is entirely browser- and cloud-native. In practice the choice is almost always ecosystem-driven.
Cost, AI, GDPR and switching costs compared
The four factors that determine the choice for most SMEs.
Cost: Google Workspace cheaper if AI is required
Google Workspace Business Standard, including Gemini AI, costs indicatively €11.50 per user per month. Business Starter without Gemini costs indicatively €5.75. Microsoft 365 Business Standard costs indicatively €12.50 per user per month; the Copilot add-on adds indicatively $30 per user per month. Total M365-plus-Copilot costs therefore land at indicatively $42 to $45 per user per month. If AI must be included, Google Workspace Business Standard is the cheapest option. Check current pricing at workspace.google.com and microsoft.com; both are exclusive of VAT.
AI assistant: Gemini versus Copilot
Gemini for Workspace (included from Business Standard) works in Gmail, Docs, Sheets and Meet: drafting emails, rewriting text, transcribing meetings and analysing data in plain language. Microsoft 365 Copilot (add-on at $30/user/month) works in Word, Outlook, Teams, Excel and PowerPoint and integrates with organisational data in SharePoint and OneDrive. Copilot is stronger for users who rely on Word and Outlook as their primary environment. Gemini is stronger with a Google-first workflow and requires no separate add-on.
GDPR compliance: both qualify
Both Google and Microsoft process EU customer data in EU data centres and do not use that data to train AI models. Both provide a Data Processing Agreement (DPA): Google via the Workspace Service Terms, Microsoft via the Microsoft Product Terms and the EU Data Boundary. As data controller you remain responsible for lawful use. EU AI Act Article 4 (in force 2 February 2025) requires role-specific training for employees who use Gemini or Copilot for business purposes.
Switching costs: migration outweighs the monthly price
The monthly cost comparison does not tell the full story. Switching from Microsoft 365 to Google Workspace (or vice versa) incurs migration costs: email migration time, retraining staff on the new suite, adapting automated workflows and potential licence overlap during the transition. Organisations that have worked in Word, Excel and Outlook for years often recoup the Copilot add-on through productivity gains in those specific apps, without migration risk. Weigh total cost of ownership, not just the monthly price.
When to choose Microsoft 365 Copilot and when Google Workspace?
Choose Microsoft 365 Copilot if your team already works deeply in Word, Outlook, Teams and Excel. Copilot integrates with SharePoint and can access historical organisational documents, quotes and email threads within the M365 environment. The add-on cost of indicatively $30 per user per month is on top of your existing M365 licence. Choose Google Workspace if your organisation is Google-first: Gmail and Drive are the daily work environment, browser-based collaboration is central and there is no Windows dependency. Business Standard (indicatively €11.50/user/month) includes Gemini AI without an extra add-on. A hybrid approach is technically possible but increases management complexity: two identity providers, two DPA relationships and two training obligations under EU AI Act Article 4. For most SMEs the decision criterion is simple: look at which suite your employees already use and build on that.
Frequently asked questions about Microsoft 365 versus Google Workspace
Which is cheaper: Microsoft 365 Copilot or Google Workspace with Gemini?
Can I use Microsoft 365 and Google Workspace simultaneously?
Is Microsoft 365 Copilot better than Gemini for Workspace?
Are Microsoft 365 Copilot and Google Workspace GDPR compliant?
Which suite do you choose if you are starting from scratch?
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