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Available today: OpenAI GPT-6 Astra in Microsoft Copilot

Available today: OpenAI GPT-6 Astra in Microsoft Copilot Microsoft 365 Copilot Blog articles     •     September 4, 2026, 8:28 pm GPT-6 Astra joins the frontier models available in Copilot Cowork and Copilot Studio, giving customers more choice for complex work they want to delegate to AI. Astra expands the range of work that…

Available today: Anthropic Claude Fable 5.1 in Microsoft Copilot

What’s New in Microsoft Copilot | August 2026

Built for business: How Microsoft 365 Copilot keeps you in the flow of legal work

Copilot Notebooks now works with Markdown, plain-text, and rich-text files

ICYMI: Partner Blog | From AI curiosity to Copilot adoption in 30 days

Update: Domain Exclusion for Microsoft 365 Copilot

What’s New in Microsoft 365 Copilot | July 2026

More control over web grounding with Domain Exclusion for Microsoft 365 Copilot

1 million documents to 300+agents: Building an enterprise-scale Microsoft 365 Copilot connector

Available today: Anthropic Claude Opus 5 in Microsoft 365 Copilot

Join Us Live: Understanding Copilot Cowork and Managing Copilot Credits

Available today: OpenAI’s GPT-5.6 in Microsoft 365 Copilot