Copilot vs Gemini for New Zealand businesses.

How do Copilot and Gemini compare in October 2026?

Microsoft Copilot (still sold as Microsoft 365 Copilot on licences) and Gemini for Google Workspace both put an assistant inside email, documents, spreadsheets and meetings. The difference is the commercial model: Gemini is bundled into most Workspace plans, while Copilot is mostly a paid add-on.

Why does your current office suite decide most of it?

Because both assistants are strongest on the data already inside their own suite. Copilot answers from Outlook, Teams and SharePoint content each user can open. Gemini works across Gmail, Drive, Docs, Sheets and Meet. Neither is a good way to reach the other suite’s data.

A decision rule that holds for most firms of under 300 people:

• On Google Workspace Business Standard or above: use Gemini first. Its marginal cost is zero.
• On Workspace Business Starter: price the upgrade to Business Standard before buying any other assistant.
• On Microsoft 365: start with free Copilot Chat, then license Copilot for the people whose work lives in Outlook, Teams and Excel.
• Thinking of switching suites for the AI: don’t, unless you were moving anyway. Mail, file and permission migration is a project in its own right, and both vendors change AI features often.

Staff in both suites, such as after a merger, are the exception: test both on the same work before standardising.

What does each do in email, documents, spreadsheets and meetings?

Email. Both draft and summarise. Copilot Chat in Outlook works without a paid licence; Gemini in Gmail is on every Workspace plan, including Starter.

Documents. Copilot in Word drafts from files in OneDrive and SharePoint, which makes SharePoint permissions the main risk. Gemini in Docs starts at Business Standard.

Spreadsheets. Google publishes usage caps: on Business Standard and Plus, the Sheets AI function runs 5,000 times a month and “build and edit spreadsheets” 100 times, as listed on 20 October 2026. Starter has neither. Microsoft lists Copilot in Excel and its Analyst agent with a licence.

Meetings. Copilot in Teams needs a transcript, or runs only during the meeting, and responds in eight languages. Meet’s “Take notes for me” works in eight languages, one per meeting. Neither lists te reo Māori. Our AI meeting note takers comparison covers consent and storage in more depth.

How do you test Copilot and Gemini on the same work?

Both vendors list free trials. Pick five people, run each task in both tools for two weeks, and score errors and editing time, not impressions.

1. Categorise a month of enquiries. Paste 200 customer enquiries into Excel and Sheets. Ask each assistant to tag them by product and urgency. Compare 50 rows against tags a staff member assigned by hand.
2. Notes from the same weekly meeting. Record a 30-minute internal meeting in Teams and in Meet. Compare each set of action items with what was actually agreed, and count invented owners or dates.
3. Update a policy from a source. Give each a current internal policy and the new rule as a pasted source document. Every change must trace to the source; any rule from memory is a fail.

Record results in a shared sheet; our lesson on evaluating an AI pilot shows how to read them.

What do Copilot and Gemini cost over a year?

Worked example for a 12-person firm at list prices on 20 October 2026. Microsoft prices exclude tax; Google’s page does not state GST.

Costs that come later:

• Usage-based features. Microsoft’s NZ page says select advanced AI features are billed by usage, beyond the licence.
• Promotion expiry. The NZ$29.14 price applies to the first year only.
• Higher Gemini limits. Google’s AI Expanded Access add-on raises the caps; we found no published price.
• Clean-up time. Both tools surface whatever users can open, so over-shared drives cost staff hours to fix.

How do admin controls and data handling differ?

Microsoft has more controls for keeping content away from the assistant. Google’s controls are simpler.

• Microsoft. Admins choose whether to allow Anthropic and OpenAI models inside Copilot, set Purview retention for Copilot chats, and can apply Restricted Content Discovery to keep sensitive SharePoint sites out of Copilot without changing permissions. That needs a Copilot licence and SharePoint Advanced Management.
• Google. Gemini is on by default in Workspace apps. Admins can turn it off per app and per organisational unit, but Google notes that Gemini in Gmail can still read a Drive file when Gemini is off for Drive.
• Data location. New Zealand is eligible for Microsoft’s Advanced Data Residency, an add-on that must cover every paid licence. Workspace data regions offer only the United States or Europe. See where AI tools keep New Zealand business data.

On business plans neither vendor trains on your content, which matters under the Privacy Act 2020: a provider using data for its own purposes changes your obligations. Either way, you remain responsible for what staff put in.

Which should you choose?

Choose Microsoft Copilot if

• Your team works in Outlook, Teams, Excel and SharePoint every day.
• You want New Zealand storage for AI chat history.
• You need fine control over which SharePoint sites the assistant can see.

Choose Gemini if

• You already pay for Workspace Business Standard or above.
• You want AI in email, documents and meetings without a per-seat add-on.
• Your team is small and wants simple on and off controls.

Where do both fall short?

• Permissions. Both show users anything they can already open. Fix sharing first; see AI and Microsoft 365 and AI and Google Workspace.
• Offshore processing. Neither processes prompts in New Zealand.
• Gemini Notebook. Google says Workspace data region settings do not apply to it.
• Confident errors. Both will state New Zealand rules from memory, sometimes wrongly. Give them the source.
• Unused licences. Paid seats nobody uses well are the most common waste. Our Microsoft Copilot training is built around real tasks, and our Copilot and Gemini guides cover setup.

Written by the Levy Street team in Wellington. Last updated 19 October 2026.