What makes it special

Copilot sits inside Word, Excel, PowerPoint, Outlook, Teams, and OneNote — and it knows your stuff. Through Microsoft Graph, it can read your emails, summarize your meetings, draft documents from your files, and analyze your spreadsheets. There's also GitHub Copilot for developers, and Copilot Studio for businesses that want to build their own custom AI agents.

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The good stuff

• Deep integration across every Microsoft 365 app

• Knows your calendar, emails & files through Microsoft Graph

• Summarizes Teams meetings automatically

• Enterprise compliance: GDPR, HIPAA, ISO 27001

• Free tier included with eligible Microsoft 365 plans

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Worth knowing

• Requires a Microsoft 365 base license — not standalone

• Real cost is higher than the headline — licensing, setup & Copilot Studio add up

• You pay per user, not per outcome — value can be uneven

• Slide & doc generation still needs heavy editing

• GitHub Copilot moving to usage-based billing June 2026

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• Who's it for?

• Office workers

• Emails, docs & meeting summaries — automated

• Microsoft-first orgs

• Already on M365? This is a no-brainer add-on

• Developers

• GitHub Copilot for code, review & agentic sessions

• Regulated industries

• HIPAA, GDPR & ISO compliance baked in (HIPAA — If a tool handles medical information (doctor's notes, health records),