Archive · 12 Sep 2026
Grok Models Roll Out Across Microsoft Copilot and Workplace Tools
Microsoft is adding xAI’s Grok models to Microsoft Copilot.
This lets users choose Grok instead of Microsoft’s default AI models for some queries.
Grok 4.1 Fast became available in preview for US-based Copilot Studio builders in February 2026.
Grok 4.6 is also available through several GitHub Copilot plans.
Organizations must choose to turn on Grok in Copilot Studio.
xAI has made Grok add-ins for PowerPoint, Word, Excel and Outlook.
Some of these add-ins are free for Microsoft 365 users, while Outlook requires paid subscriptions.
Grok can also connect with Microsoft workplace services to automate tasks.
xAI’s Grok models are now selectable directly within Microsoft Copilot.
Grok 4.1 Fast entered Copilot Studio preview for US-based builders on February 19, 2026.
Grok 4.6 supports several GitHub Copilot subscription plans, with administrator opt-in required in Copilot Studio.
xAI launched Grok add-ins for PowerPoint, Word, Excel and Outlook through the Microsoft Marketplace.
Grok connectors for Outlook, Teams, SharePoint and OneDrive support automated workplace workflows through Grok Bot.
- Who
- Microsoft and xAI, with the announcement attributed in the headline to Microsoft CEO Satya Nadella.
- What
- Microsoft is adding xAI’s Grok models to Copilot and expanding Grok integrations across Microsoft products.
- When
- The rollout includes dates in 2026, including February 19 for Copilot Studio preview and May through July for workplace connectors and Office add-ins.
- Where
- Across Microsoft’s ecosystem, including Copilot, GitHub Copilot, Microsoft 365 applications and workplace services; the Copilot Studio preview is for US-based builders.
- Why
- To give users access to Grok models and enable AI-assisted and automated workplace workflows.
- AI model
- Grok models from xAI
- Copilot Studio preview
- Grok 4.1 Fast became available to US-based builders on February 19, 2026.
- GitHub Copilot model
- Grok 4.6 supports Copilot Pro, Pro+, Max, Business and Enterprise plans.
- Administrator control
- Grok access in Copilot Studio requires an organization administrator to opt in and is not enabled by default.
- Office add-ins
- Grok add-ins launched for PowerPoint on June 16, Word on June 18, Excel on July 20 and Outlook on July 21.
- Workplace connectors
- Connectors are available for Outlook Mail and Calendar, Microsoft Teams, SharePoint and OneDrive.