Microsoft Copilot vs Google Gemini

Why Is Office AI Becoming More Important Every Day?

Before the comparison, let's understand why AI assistants in office tools have become something organizations cannot avoid in 2026:

• Time savings: Tasks that used to take 2 hours — such as summarizing a 50-page report or creating a presentation — now take only 10–15 minutes with AI assistance
• Reduce repetitive work: Drafting reply emails, formatting documents, creating Excel formulas — AI can do all of these
• Elevate work quality: Proofreading, language correction, data analysis, and surfacing insights people might miss
• Stay competitive: Organizations using AI work faster and more efficiently than those still using traditional methods

Currently there are two main players in the AI office market: Microsoft Copilot (for Microsoft 365) and Google Gemini for Workspace (for Google Workspace). Let's look at the details.

What Is Microsoft Copilot?

Microsoft 365 Copilot is an AI assistant embedded across the entire Microsoft 365 suite. It uses GPT-4 from OpenAI as its core engine, combined with organizational data via Microsoft Graph, enabling AI to understand each user's work context.

Capabilities in Each Microsoft 365 App

Word (Documents):

• Create documents from a prompt, e.g., "Write a Q3 performance summary report"
• Summarize long documents down to 1 page
• Edit tone — change from formal language to easy-to-understand language
• Continue writing from existing content, or propose an outline

Excel (Spreadsheets):

• Create formulas from natural language, e.g., "Find the average monthly sales"
• Analyze data and automatically create charts
• Identify trends, outliers, and patterns in data
• Create Pivot Tables from a description

PowerPoint (Presentations):

• Create a full slide deck from a Word document or prompt
• Suggest designs, layouts, and speaker notes
• Summarize content from other files into slides

Outlook (Email):

• Summarize long emails or entire threads into bullet points
• Draft reply emails based on context
• Adjust email tone — more polite, more concise, or more formal

Teams (Meetings):

• Real-time meeting summaries — who said what, what the action items are
• Answer questions about meeting content, e.g., "Did anyone mention budget?"
• Automatically create meeting notes after the meeting ends

What Is Google Gemini for Workspace?

Google Gemini for Workspace (formerly Duet AI for Google Workspace) is an AI assistant embedded across the entire Google Workspace suite, using Gemini — Google's own AI model — as its core engine.

Capabilities in Each Google Workspace App

Google Docs (Documents):

• Create documents from a prompt — "Write a proposal for an IT system development project"
• Summarize long documents into concise form
• Help continue writing, adjust tone, or translate
• Answer questions based on document content

Google Sheets (Spreadsheets):

• Create formulas from natural language — "Calculate % growth vs previous month"
• Organize data and create templates
• Basic data analysis, create charts and graphs
• Automated data classification

Google Slides (Presentations):

• Create slides from a prompt or from Google Docs
• Generate illustrations using AI Image Generation
• Automatically adjust design and layout

Gmail (Email):

• "Help me write" — draft emails from a prompt
• Summarize long emails or entire threads
• Suggest short replies (smarter Smart Reply)
• Adjust email tone as needed — Formal, Casual, or Elaborate

Google Meet (Meetings):

• Automatically summarize meetings with Action Items
• Real-time language translation (subtitles)
• Generate meeting backgrounds with AI
• "Attend for me" — AI joins the meeting and summarizes it for you (new feature)

Comparison Table: Microsoft Copilot vs Google Gemini

Here is a head-to-head overview comparison:

Features	Microsoft Copilot	Google Gemini
Documents	Word: Create/Summarize/Edit/Continue	Docs: Create/Summarize/Edit/Q&A
Spreadsheets	Excel: Formulas/Charts/Analysis/Pivot	Sheets: Formulas/Charts/Analysis/Classification
Presentations	PowerPoint: Create Slides/Design/Notes	Slides: Create Slides/AI Image/Layout
Email	Outlook: Summarize/Draft/Adjust Tone	Gmail: Summarize/Draft/Adjust Tone/Smart Reply
Meetings	Teams: Meeting Summary/Action Items/Q&A	Meet: Meeting Summary/Translation/Attend for me
AI Engine	GPT-4 (OpenAI)	Gemini (Google DeepMind)
Price	$30/user/month	$20-30/user/month
Org Data Access	Accessed via Microsoft Graph	Accesses Drive, Gmail, Calendar
Desktop App	Supported (Word, Excel, PPT on Desktop)	Primarily web-based
Strengths	Strong Excel + PowerPoint	Collaboration + Lower Price

Real Office Usage Examples

Let's see how both AI tools help in real-world scenarios:

Scenario 1: Meeting Summary

Microsoft Copilot: Open Teams after the meeting, press "Recap" — AI will summarize who said what, what action items exist, and who is responsible, with timestamps for playback.

Google Gemini: Open the Google Meet recording — AI summarizes key points by topic, automatically sends a summary to Google Docs, and can instantly translate to other languages.

Scenario 2: Sales Data Analysis

Microsoft Copilot: Open Excel, type "Analyze 12 months of sales, find the best and worst months, and create a comparison chart" — AI creates formulas, a Pivot Table, and charts in one click.

Google Gemini: Open Sheets and type the same prompt — AI can create formulas and charts, but its Pivot Table and Advanced Analysis capabilities are slightly behind Excel's.

Scenario 3: Creating Presentation Slides

Microsoft Copilot: Open PowerPoint and type "Create a 10-slide annual performance summary" — or point to a Word document and let AI convert it into slides — complete with beautiful design and Speaker Notes.

Google Gemini: Open Slides — AI also creates slides and shines with AI Image Generation, producing custom slide illustrations without needing stock photos.

Which Is Right for Whom? — Recommendations for Organizations

The choice between Copilot and Gemini depends primarily on the tools your organization already uses:

Choose Microsoft Copilot If:

• Your organization primarily uses Microsoft 365 (Word, Excel, PowerPoint, Outlook, Teams)
• You need strong Excel AI — complex formulas, Pivot Tables, Data Analysis
• You use Microsoft Teams as your primary meeting tool
• You need AI that works on Desktop Apps (not always requiring internet connection)
• Your organizational data is primarily in SharePoint or OneDrive

Choose Google Gemini If:

• Your organization primarily uses Google Workspace (Docs, Sheets, Slides, Gmail, Meet)
• You emphasize Collaboration — multiple people regularly edit documents simultaneously
• You need a lower price — Gemini Business starts at $20/user/month
• You need AI Image Generation in Slides
• You work primarily web-based without needing Desktop App installations
• You use Google Meet as your primary meeting tool

If Your Organization Uses Both Platforms:

Many organizations use a mix of both platforms. In this case, consider:

• Which platform do you use more? — If 70% of work is in Microsoft, choose Copilot
• Budget: — Start with one platform, pilot for 3 months and measure results before expanding
• Pilot first: — Let a small team try both, gather feedback, then decide for the whole organization

Limitations and Cautions

Although AI can assist greatly, there are important limitations organizations must know:

1. Accuracy Issues (Hallucination)

Both Copilot and Gemini may "hallucinate" or provide incorrect information — especially when asked about topics where AI lacks sufficient data. Users must always verify results before using them.

2. Confidential Data and PDPA

When AI has access to organizational data, consider:

• Where does data flow? — Microsoft promises data stays within the organization's tenant and is not used for AI training. Google has a similar policy for Workspace.
• PDPA (Personal Data Protection Act): If AI accesses personal data — such as customer emails or employee data — data subjects must be informed and appropriate protective measures must be in place.
• Trade secrets: Be careful using AI to summarize documents containing confidential information such as contracts, patents, or business strategies.

3. Added Cost

AI costs are additional monthly per-user expenses on top of your existing licenses:

• 100-person organization + Copilot $30/user = $3,000/month
• 100-person organization + Gemini Business $20/user = $2,000/month

Calculate ROI clearly — how much time does AI save? Is it worth the additional cost?

4. Thai Language Limitations

Both Copilot and Gemini support Thai, but not yet 100% perfect — there may be grammar, word segmentation, or Thai-specific context issues, especially for technical terms or official language. Users should always review and edit.

5. Good Data Is Required

AI is only as good as the data you feed it — if data in SharePoint or Google Drive is disorganized, outdated, or incomplete, AI results will be poor too. "Garbage In, Garbage Out" remains an evergreen principle.

What About Saeree ERP? Does It Have AI?

Directly answered: Saeree ERP currently does not have built-in AI features, but it is on the near-term development roadmap.

However, Saeree ERP can already work alongside office AI, for example:

• Export data from Saeree ERP to Excel + Copilot — pull sales, cost, and inventory reports and let AI analyze trends
• Export as CSV and import into Google Sheets + Gemini — use AI to create charts, analyze data, or build dashboards
• Use ERP data to create AI-powered reports: Pull data from the system, then let Copilot automatically create presentations or summary reports

Conclusion

Both Microsoft Copilot and Google Gemini for Workspace are capable and useful AI tools for office work — which is better depends primarily on the platform your organization already uses.

• Microsoft 365 + Copilot suits organizations needing strong AI for Excel, PowerPoint, and Teams
• Google Workspace + Gemini suits organizations emphasizing Collaboration, lower cost, and web-based work
• Both have limitations around accuracy, PDPA, and Thai language to watch out for
• Start with a Pilot Program with a small team before buying for the entire organization

AI will not replace workers, but those who use AI well will replace those who don't — the key is to start experimenting, understand the limitations, and gradually adapt your workflows to the new tools. Whether you choose Copilot or Gemini, the most important thing is that your foundational data must be good — and that is exactly what a good ERP system helps with.

- Grand Linux Solution Advisory Team

If your organization needs an ERP system that stores data systematically and is ready to work alongside AI in the future, schedule a demo or contact our advisory team for further discussion.