# Microsoft 365 Copilot

> Microsoft's AI assistant inside Word, Excel, PowerPoint, Outlook and Teams, grounded in your organisation's Microsoft 365 data.

Microsoft 365 Copilot is a paid add-on that puts AI into the Office apps and Teams and grounds answers in work data through Microsoft Graph. It includes prebuilt agents such as Researcher and Analyst, and Copilot Studio for building custom agents. A free Copilot Chat experience is available to eligible Microsoft 365 business users. Consumers get Copilot features through Microsoft 365 Personal, Family and Premium instead.

- Vendor: Microsoft
- Website: https://www.microsoft.com/en-us/microsoft-365/copilot
- Category: ai_assistant
- Free plan: yes
- Last reviewed: 2026-10-13
- Canonical: https://onelesstool.com/tools/microsoft-365-copilot
- JSON: https://onelesstool.com/api/v1/tools/microsoft-365-copilot

## Plans

| Plan | USD | Unit | Evidence | Source |
|---|---|---|---|---|
| Microsoft 365 Copilot Chat | $0 | seat/month | verified 2026-10-13 | https://www.microsoft.com/en-us/microsoft-365/copilot/business |
| Microsoft 365 Copilot Business (add-on) | $21 (annual billing) | seat/month | verified 2026-10-13 | https://www.microsoft.com/en-us/microsoft-365/copilot/business |
| Microsoft 365 Business Standard with Copilot (bundle) | $23.5 (annual billing) | seat/month | verified 2026-10-13 | https://www.microsoft.com/en-us/microsoft-365/copilot/business |
| Microsoft 365 Copilot (enterprise add-on) | $30 (annual billing) | seat/month | verified 2026-10-13 | https://www.microsoft.com/en-us/microsoft-365/copilot/enterprise |
| Microsoft 365 Personal (consumer) | $9.99 | account/month | verified 2026-10-13 | https://www.microsoft.com/en-us/microsoft-365/buy/compare-all-microsoft-365-products |
| Microsoft 365 Premium (consumer) | $19.99 | account/month | verified 2026-10-13 | https://www.microsoft.com/en-us/microsoft-365/buy/compare-all-microsoft-365-products |

## Capabilities

| Capability | Fit | Plans | Limitations |
|---|---|---|---|
| General-purpose AI assistant (`ai-chat-assistant`) | strong | all | Free Copilot Chat does not reason over your Microsoft Graph data the way the paid add-on does; Requires a Microsoft 365 subscription |
| Ask questions across company documents (`enterprise-search`) | native | copilot-business, business-standard-copilot, microsoft-365-copilot | Weaker for content stored outside Microsoft 365 unless connectors are set up; Results reflect messy permissions; oversharing in SharePoint shows up in answers |
| Write marketing and business copy (`writing-copy`) | strong | copilot-business, business-standard-copilot, microsoft-365-copilot, personal, premium | Creative marketing copy is less distinctive than top standalone assistants; Brand voice depends on the reference documents you point it at |
| Proofread and improve writing (`grammar-editing`) | partial | copilot-business, business-standard-copilot, microsoft-365-copilot, personal, premium | Only inside Microsoft apps |
| Write documents and notes (`docs-notes`) | strong | copilot-business, business-standard-copilot, microsoft-365-copilot | The document tools themselves come from the base Microsoft 365 plan |
| Create presentation decks (`presentation-decks`) | strong | copilot-business, business-standard-copilot, microsoft-365-copilot, premium | Layouts often need manual polish; Design quality is below dedicated presentation tools |
| Analyse data and spreadsheets (`data-analysis`) | strong | copilot-business, business-standard-copilot, microsoft-365-copilot, premium | Works best on clean, well-structured tables; Verify formulas before relying on results |
| Transcribe and summarise meetings (`meeting-transcription`) | strong | copilot-business, business-standard-copilot, microsoft-365-copilot | Teams use requires a Teams license; Meetings on Zoom or Google Meet are not covered natively |
| Research a topic on the web with citations (`web-research`) | strong | copilot-business, business-standard-copilot, microsoft-365-copilot, premium | Citation checking still needed |
| Run AI agents that complete multi-step tasks (`ai-agents-automation`) | strong | copilot-business, business-standard-copilot, microsoft-365-copilot | Advanced agents and heavy usage may incur extra Copilot Studio costs not covered here; Setup often needs IT involvement |
| Generate images from text (`image-generation`) | partial | personal, premium, copilot-business, microsoft-365-copilot | Not a focus of the business product; No fine editing or brand control |
| Extract data from documents and PDFs (`document-data-extraction`) | partial | copilot-business, business-standard-copilot, microsoft-365-copilot | No batch pipeline or validation queue; Scanned documents may extract poorly |

## Why people pay for it

- AI drafting and summarising directly inside Word, Outlook, PowerPoint and Excel
- Answers grounded in the organisation's email, files, meetings and chats
- Prebuilt Researcher and Analyst agents with advanced reasoning
- Copilot Studio for custom agents on work data
- Enterprise-grade privacy and admin controls that IT already manages

## Reasons to keep paying

- Access to company data in Microsoft Graph with existing permissions
- Works where staff already write, meet and email, so adoption needs little training
- IT, security and compliance teams have already approved the Microsoft stack
- Meeting summaries tied to Teams recordings and transcripts

## Risks

- **security** (medium): Copilot surfaces anything a user can access. Over-shared SharePoint or OneDrive content can leak to people who should not see it; audit permissions before rollout.
- **vendor_lock_in** (medium): Value depends on staying in Microsoft 365; agents and grounding do not move to other suites.
- **functionality_loss** (low): Removing the add-on keeps files but loses in-app AI, agents and meeting summaries.
- **reliability** (medium): Summaries and Excel analysis can be wrong; review before sharing.

Data portability: easy — Copilot output is saved as normal Word, Excel, PowerPoint and Outlook files in your tenant, so removing Copilot keeps all documents. Custom agents built in Copilot Studio do not transfer to other platforms.

## Replacement workflows

- [Consolidate overlapping AI assistant subscriptions (ChatGPT, Claude, Gemini, Perplexity, Grok, Copilot)](https://onelesstool.com/workflows/consolidate-ai-assistants.md)

## Sources

- Microsoft 365 Copilot for business: https://www.microsoft.com/en-us/microsoft-365/copilot/business (accessed 2026-10-13)
- Microsoft 365 Copilot for enterprise: https://www.microsoft.com/en-us/microsoft-365/copilot/enterprise (accessed 2026-10-13)
- Compare Microsoft 365 plans: https://www.microsoft.com/en-us/microsoft-365/buy/compare-all-microsoft-365-products (accessed 2026-10-13)