Microsoft brings Grok models to Copilot in Word, Excel and PowerPoint
basedjensen · x · 2026-09-13
Microsoft 365 announced that Grok models from xAI are rolling out in Copilot across Word, Excel, and PowerPoint, starting with a focused release to customers in the Microsoft Frontier program. This marks a notable expansion beyond OpenAI models in Microsoft's productivity suite, bringing third-party frontier models into Office's AI assistant.
Related event: xAI's Grok Arrives in Microsoft Copilot(4 posts)→
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