Expanding model choice in Copilot with Grok

I think the article you're referring to is "old" and not relevant to this announcement.  (https://learn.microsoft.com/en-us/microsoft-365/copilot/connect-to-ai-models) In case you weren't aware, SpaceXAI Grok has been available to enable within Copilot Studio for over 6 months but WITHOUT a subprocessor agreement, just like Mistral.  It was basically deployable "at your own risk".

That was then.  With this announcement - assuming it follows the same pattern as Anthropic's subprocessing agreement - SpaceXAI Grok will be available (initially to Frontier customers as it rolls out) under a subprocessor agreement specifically for Word, Excel & PowerPoint use, providing coverage by Microsoft's Product Terms and the Microsoft Data Processing Addendum.  In other words, data privacy, no-training-of-AI-models, stateless/no data storage by the subprocessor, etc. etc. etc. (I don't think this announcement impacts Copilot Studio - at least not immediately)

I think because this announcement is "Frontier only", the product group has not published a learn.microsoft.com article like they have for Anthropic or OpenAI entitled "SpaceXAI as a subprocessor in Microsoft Online Services" and all you're seeing is the old "Connect to SpaceXAI models" article from months ago.