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微软扩展 Copilot 模型库：SpaceXAI Grok 上线 Word、Excel 与 PowerPoint
据 AIbase 报道，微软于 9 月 12 日宣布将 SpaceXAI 的 Grok 模型引入 Microsoft 365 Copilot，先在 Word、Excel、PowerPoint 的 Microsoft Frontier 项目限量预览中向特定客户开放，用于评估常见办公任务效果。文章称微软此前已引入 Anthropic Claude 系列，此次继续推进多模型架构；SpaceXAI 被列入微软在线服务子处理商名单，企业 IT 管理员需显式启用相关功能，预览期不对欧盟、EFTA 国家和英国 Frontier 用户开放。该消息为转述，未附微软官方公告，且主体名称存在疑点，需以官方信息为准。
AI推荐理由 内容称微软于9月12日宣布将 SpaceXAI 的 Grok 模型引入 Microsoft 365 Copilot，先在 Word、Excel、PowerPoint 的 Frontier 项目限量预览中提供，并提到企业 IT 需显式启用、预览期不对欧盟/EFTA/英国开放。这是多模型架构与办公场景落地的具体新信息，但来源为 AIbase 转述，未给出微软官方公告链接或原文，且正文中“SpaceXAI”这一主体名称与常见事实不符，存在事实准确性风险，故质量分受限；对关注 Copilot 模型生态和 Agent 办公应用的读者有参考价值。
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正文
Microsoft Expands Copilot Model Library: SpaceXAI Grok Officially Launched in Word, Excel, and PowerPoint
AIbase基地
Published inAI News · 3 min read · Sep 14, 2026
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Microsoft announced on September 12 that it has officially introduced the Grok model from SpaceXAI into Microsoft 365 Copilot. This model is now available in Word, Excel, and PowerPoint components as part of the Microsoft Frontier project's limited preview, offering access to specific customers to evaluate its practical effectiveness in common office tasks.
Since last year, Microsoft has gradually shifted away from its over-reliance on a single model from OpenAI, integrating the Claude series from Anthropic into product lines such as Copilot Studio, Researcher, and Excel.
The addition of the Grok model from SpaceXAI marks a key step for Microsoft in deepening its multi-model architecture. In terms of data compliance and security controls, SpaceXAI has been included in Microsoft's list of online service sub-processors. Enterprise IT administrators must explicitly enable the relevant features to gain access, and they maintain full visibility and control over data processing throughout. Additionally, this service will not be available to Frontier users in the EU, European Free Trade Association countries, and the UK during the preview period.
Microsoft previously conducted responsible AI reviews and safety validations on Grok, marking a significant step forward in enterprise AI software moving toward a highly customizable, multi-model ecosystem, rather than being locked to a single supplier.
Microsoft365CopilotGrokOpenAIMicrosoftFrontier
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