Microsoft Copilot overview

Note

Microsoft Copilot is available in many regions worldwide. However, it might not be accessible in certain markets. Some organizations might gain access through an account support escalation process, but access is subject to approval. For more information, see International availability.

Microsoft Copilot Chat and Microsoft Copilot responses and experiences differ by data grounding, integration depth, and licensing:

However, all experiences are powered by:

Note

Anthropic subprocessors are available only in applicable Microsoft 365 licensed experiences and aren't available to all users by default. Anthropic operates with Microsoft Enterprise data protections. For more information, see Anthropic as a subprocessor for Microsoft Online Services.

Copilot Chat (Basic) license Microsoft 365 Copilot (Basic) license Microsoft 365 Copilot (Premium) license
Securely interact with Copilot Chat using web data only Securely interact with Copilot Chat using web data only Securely interact with Copilot using web data and work data (Microsoft Graph and Work IQ)
You don't have the Microsoft 365 Copilot add-on license and don't have access to Copilot in Word, Excel, PowerPoint, and OneNote.

For more information, see Copilot Chat (Basic) license and experience.
You don't have the Microsoft 365 Copilot add-on license but have standard access to Copilot in Word, Excel, PowerPoint, and OneNote.

For more information, see Microsoft 365 Copilot (Basic) license and experience.
You have the Microsoft 365 Copilot add-on license with priority access to the full experience of Copilot in Word, Excel, PowerPoint, and OneNote.

You have access to Microsoft Copilot Cowork via usage-based billing.

For more information, see Microsoft 365 Copilot (Premium) license and experience.
  • Access to agents that use web data.
  • Pay-as-you-go work data agents.
  • Access to agents that use web data.
  • Pay-as-you-go work data agents.
Includes access to agents that use web and work data (Microsoft Graph and Work IQ).
Basic usage management controls and reporting for admins. Basic usage management controls and reporting for admins. Added advanced management controls and analytics for admins.

Note

In-product labels are displayed in Microsoft 365 apps like Word, Excel, PowerPoint, and OneNote, and in the Microsoft Copilot app, to help users identify their Copilot experience.

Copilot features in Microsoft 365 apps

Important

Chat experiences in Microsoft 365 apps vary depending on your tenant configuration and license. For more information, see licensing prerequisites, Microsoft Copilot service descriptions and Copilot license options.

For more information about US government cloud, see Understand Microsoft US government cloud environments for Microsoft 365 and Microsoft Copilot.

Copilot Chat (Basic) is the standalone baseline experience included with eligible Microsoft 365 licenses. It provides a secure, enterprise-ready AI chat that primarily uses web data and has limited use of organizational content. Copilot Chat can use organizational content, but you must explicitly provide that content with your prompt.

You can access Copilot Chat (Basic) through:

  • https://m365copilot.com/ (Pin Copilot Chat)
  • Copilot Chat in Microsoft Edge (select the Copilot icon in the upper-right corner of the Edge browser). Use Copilot Chat to summarize website content and some document types displayed in Edge.
  • Copilot Chat in Outlook and Teams
  • bing.com/chat
  • bing.com/copilotsearch
  • copilot.com
  • copilot.ai

Declarative agents that are grounded in instructions and public websites are included with Copilot Chat. Access to custom or other agents is pay-as-you-go only.

To use organizational content with Copilot Chat:

  • Copy and paste content, upload a file, or select a file when creating your prompt.
  • Use Copilot Chat in select Microsoft 365 apps like Teams and Outlook with content you have open. In this context, Copilot Chat is aware of your open content and can use it instead of requiring you to copy and paste information or upload a file.
  • Use a pay-as-you-go agent that has access to organizational content.

Note

To ensure your users access Copilot Chat for work and education, instruct them to sign in with their Microsoft Entra account before accessing Copilot via the Microsoft Copilot app, copilot.cloud.microsoft, Copilot Chat in Edge, or productivity apps. Entry points for users signed in with a personal account (MSA):

  • Microsoft Copilot app (web, desktop, mobile)
  • copilot.microsoft.com
  • bing.com/chat
  • bing.com/copilotsearch
  • copilot.com
  • copilot.ai

You can manage whether your users can sign in to Microsoft 365 apps using a personal account (MSA). For more information, see use tenant restrictions V2.

Data security and privacy

The following table outlines key security considerations:

Data security consideration Copilot Chat (Basic) license Microsoft 365 Copilot (Basic) license Microsoft 365 Copilot (Premium) license
Enterprise Data Protection (EDP) Yes Yes Yes
Responses grounded in web data Yes Yes Yes
Responses grounded in organizational data Yes, but you must:
  • Upload the files with your prompt
  • Use Copilot Chat with open content (Outlook and Teams)
  • Use a pay-as-you-go agent that has access to organizational content
Yes, but you must:
  • Upload the files with your prompt
  • Use Copilot Chat with open content (Outlook and Teams)
  • Use a pay-as-you-go agent that has access to organizational content
Yes, automatic via Microsoft Graph and Work IQ.
European Union Data Boundary (EUDB) Yes Yes Yes

Enterprise Data Protection (EDP)

Copilot Chat (Basic), Microsoft 365 Copilot (Basic), and Microsoft 365 Copilot (Premium) are protected by Enterprise Data Protection (EDP) when you sign in with Microsoft Entra accounts. With EDP, prompts and responses are protectedby the same contractual terms and commitments that customers widely trust for their emails in Exchange and files in SharePoint.

Additional resources:

Responses grounded in web data

Copilot Chat (Basic) and Microsoft 365 Copilot (Basic) responses are grounded in data from the public web. Copilot Chat (Basic) and Microsoft 365 Copilot (Basic) can't use organizational data via Microsoft Graph when interacting with Copilot Chat. You must upload the content with your prompt, work with open content (Teams and Outlook), or use a pay-as-you-go agent that has access to organizational data.

Microsoft 365 Copilot (Premium) uses both web and organizational data via Microsoft Graph and Work IQ, and pulls information automatically. You can specify the files to focus on, but you don't need to upload them manually.

Responses grounded in organizational data

Copilot Chat (Basic) and Microsoft 365 Copilot (Basic) users can provide organizational content as part of their prompt by manually uploading a file directly or by using a pay-as-you-go agent that has access to organizational content. However, Copilot Chat (Basic) and Microsoft 365 Copilot (Basic) users don't have access to Microsoft Graph. For more information, see organizational data and Copilot Chat.

Microsoft 365 Copilot (Premium) uses both web and organizational data via Microsoft Graph and pulls information automatically. You can specify the files to focus on, but you don't need to upload them manually.

European Union Data Boundary (EUDB)

Copilot Chat (Basic), Microsoft 365 Copilot (Basic), and Microsoft 365 Copilot (Premium) route calls to the LLM to the closest data centers in the region but can also call into other regions where greater capacity is available when utilization is especially high. For European Union (EU) users, Microsoft Copilot has additional safeguards to comply with the EU Data Boundary. EU traffic stays within the EU Data Boundary, while worldwide traffic can be sent to the EU and other countries or regions for LLM processing.

Responsible AI

Microsoft Copilot adheres to Microsoft's Responsible AI principles. For more information, see Microsoft Copilot Responsible AI FAQ, and Responsible AI at Microsoft.

Model selection

Microsoft Copilot offers the latest models tailored to your business needs without changing your security, compliance, and privacy settings. You can select different models by using the model selector in the UI. By default, Copilot uses a real-time router to adjust the underlying model it uses based on your prompt.

Note

Anthropic subprocessors are available only in applicable Microsoft 365 licensed experiences and aren't available to all users by default. Anthropic operates with Microsoft Enterprise data protections. For more information, see Anthropic as a subprocessor for Microsoft Online Services.

Model Description
Auto Copilot determines which model to use while in the default "Auto" mode.
Quick response For common or routine questions, Copilot prioritizes speed, using a high-throughput model to craft quick, succinct responses to straightforward questions.
Think deeper For complex or more open-ended questions, Copilot might detect that the prompt requires advanced reasoning. In these cases, Copilot uses a deeper reasoning model, taking its time to craft a plan, gather and comprehend all relevant context, and check its work before providing a thorough response.

These options update as new models become available.

Copilot Control System

In the admin center, use the Copilot Control System to manage Copilot Chat experiences, including Copilot Chat (Basic), Microsoft 365 Copilot (Basic), and Microsoft 365 Copilot (Premium).

In the Copilot Control System, you can configure how users interact with Copilot and related AI experiences, including:

For broader governance, you can assign the AI Administrator role, which provides least-privilege access to manage Copilot and AI features across Copilot Chat (Basic), Microsoft 365 Copilot (Basic), and Microsoft 365 Copilot (Premium) without requiring Global Administrator permissions.

Train your users

Help users understand how to use Copilot to assist them with work tasks by pointing them to the following resources:

Track and increase Copilot adoption

The Microsoft Copilot Chat usage report provides you with insights into how users are engaging with Copilot Chat (applies to all licenses) and related chat-based experiences, helping track adoption trends and prompt activity over time. The report includes metrics such as total and daily active users, total prompts submitted, average prompts per user, and anonymized per-user engagement details (for example, last activity date and active days) across 7, 30, 90, or 180-day views.

In contrast, the Microsoft Copilot usage report focuses on usage of Microsoft Copilot within Microsoft 365 apps such as Teams, Outlook, Word, Excel, and PowerPoint (requires Microsoft 365 (Basic) or Microsoft 365 Copilot (Premium) licenses). Use the Microsoft Copilot usage report to understand how licensed Copilot features are being used in-app, this report complements the Copilot Chat usage report by providing a broader view of integrated Copilot adoption across workloads.

Together, with these reports, you can distinguish between standalone chat engagement (Copilot Chat (Basic)) and deeper, app-integrated Copilot usage (Microsoft 365 (Basic) and (Premium)), and to identify opportunities to drive adoption across both experiences.

You use the Organizational messages feature to act on report insights, delivering targeted, contextual guidance directly within users' workflows to increase awareness and effective usage.

Other Copilot products

The following Copilot products are independently licensed and don't require a Microsoft 365 Copilot (Premium) license. Organizations can purchase and use each offering based on their specific needs, audience, and use cases.

  • Microsoft Security Copilot: helps security professionals with incident response, threat hunting, intelligence gathering, posture management, and more.
  • GitHub Copilot: is an AI coding assistant that can help you write code faster. This Copilot is licensed by your work organization.
  • Microsoft Copilot Studio: is a low-code graphical tool that you can use to create agents and connect to other data sources. Agents let you customize your organization's Copilot experience. They can automate and execute business processes, like help desk, change management, and managing guests in meetings.

For other Microsoft Copilot products, see the Microsoft Copilot learning hub.