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Microsoft has introduced Grok 4.1 Fast, developed by xAI, to Copilot Studio in preview for US organizations. The update expands enterprise options within Microsoft’s AI ecosystem. Shortly after the announcement, Elon Musk responded to Satya Nadella online, hinting that Grok 4.2 is coming soon, though no timeline or feature details were shared.
Grok 4.1 Fast performs advanced reasoning functions together with text analysis capabilities. The model from Microsoft enables users to manage complex tool functions that run across multiple enterprise applications while processing extensive context information. The system lacks the capabilities to produce visual content or multimedia elements. The system creates structured text content while assisting users in making decisions for business operations.
Copilot Studio continues to support models from other artificial intelligence providers, including OpenAI and Anthropic. Each model undergoes internal safety, security, and quality evaluations before being made available to customers.
Microsoft clarified that customer data processed through Grok 4.1 will not be retained or used to train xAI systems. However, the model operates outside Microsoft-managed infrastructure. Organizations must opt in through an administrative setting before enabling it, and activation requires a separate agreement governed by xAI’s enterprise terms and data protection policies.
The feature is currently disabled by default in early access environments, ensuring existing Copilot workflows remain unaffected unless explicitly changed.
Elon Musk's short reference to Grok 4.2 shows that xAI continues to work on developing its existing products. The exchange with Satya Nadella shows that enterprise artificial intelligence competition between companies has reached a new level of intensity despite limited information about the matter. Microsoft chose to support various third-party models as it wanted to create a flexible approach that would make Copilot Studio function as an impartial tool within the changing AI environment.
