Microsoft has quietly expanded Copilot Studio’s model roster: xAI’s Grok 4.1 Fast is now available in preview inside Microsoft Copilot Studio for select United States–based makers, offering a text‑only, fast‑reasoning option aimed at complex, agentic workflows while bringing fresh operational and governance tradeoffs that IT teams must evaluate carefully.
Background
Microsoft’s Copilot Studio has been evolving from a single‑model orchestration environment into a genuine multi‑model platform...