Microsoft Copilot
MicrosoftMicrosoft's Copilot chat surface on Windows, the web and mobile, and embedded across Microsoft 365 in Word, Excel, Teams and Outlook. It runs over models from Microsoft and, in licensed Microsoft 365 experiences, Anthropic, and grounds answers in Microsoft Graph content across those applications.
Scored as the chat surface; Copilot Studio agents are a separate product.
Openness
1 high confidence- license
- proprietary(SaaS/embedded)
- source
- closed
- self-host
- none
- model
- Anthropic+Microsoft(closed)
Fully proprietary, delivered as SaaS and embedded in Microsoft products. The closed counterpart to the open chat interfaces in this category.
- https://learn.microsoft.com/en-us/copilot/microsoft-365/microsoft-365-copilot-overview recorded 2026-09-29
Copilot overview describes a hosted, license-tiered service: "Microsoft Copilot is available in many regions worldwide" and "Anthropic subprocessors are available only in applicable Microsoft 365 licensed experiences". Searched the body for self-host, on-prem, open source and source code: none.
- https://www.microsoft.com/en-us/servicesagreement recorded 2026-09-29
Microsoft Services Agreement section on Copilot AI Experiences states "You may not use the AI services to discover any underlying components of the models, algorithms, and systems." Searched the body for open source, source code, self-host and on-prem: none.
Adoption
5 medium confidenceMicrosoft does not publish a usage breakdown for the Copilot app and website, so the figure comes from a third-party aggregator compiling Microsoft disclosures and app-analytics data.
- https://www.businessofapps.com/data/microsoft-copilot-statistics/ recorded 2026-09-29
Key statistics: "Microsoft Copilot had 218 million active users across Windows, app and website" and "Copilot has been downloaded 88 million times since launch"; aggregator compiling Microsoft disclosures, AppMagic and Similarweb.
Capability
4 medium confidenceMicrosoft Copilot grounds its answers in Microsoft 365 work data across Teams, Word, Excel and Outlook, and supports agents built in Copilot Studio.
- https://learn.microsoft.com/en-us/copilot/microsoft-365/microsoft-365-copilot-overview recorded 2026-09-29
Licensing tiers list "Declarative agents that are grounded in instructions and public websites are included with Copilot Chat" and describe Copilot Studio as "is a low-code graphical tool that you can use to create agents and connect to other data sources".
- https://learn.microsoft.com/en-us/microsoft-365/admin/activity-reports/microsoft-365-copilot-usage?view=o365-worldwide recorded 2026-09-29
Microsoft 365 Copilot usage report documents Copilot Chat (work) and Copilot Chat (web) in Teams and Outlook, including "Summarize chats and channel conversations" and a per-user "Copilot Chat (work) prompts submitted" count.
Verified 2026-09-29