# Microsoft Brings SpaceXAI's Grok to Copilot in Word and Excel > Microsoft is adding SpaceXAI's Grok to Copilot in Word, Excel, and PowerPoint. Learn how administrators can enable the new AI model and why Grok 4.7 is delayed. - Canonical URL: https://coreiten.com/en/article/microsoft-brings-spacexais-grok-to-copilot-in-word-and-excel - Language: en - Section: Excel - Author: Sami - Published: 2026-09-13T14:01:22+03:00 - Modified: 2026-09-13T14:01:22+03:00 - Publisher: CoreITen (https://coreiten.com) - Keywords: Grok in Microsoft Copilot, SpaceXAI, Grok 4.7, Microsoft 365, Frontier Program, Excel ## Summary Microsoft is expanding its Copilot multi-model strategy by integrating SpaceXAI's Grok into productivity apps like Word and Excel. - The Grok preview is rolling out exclusively for eligible Frontier Program customers, but is unavailable in the European Union, European Free Trade Association, and the United Kingdom. - Administrators must manually opt in through the Microsoft 365 admin center because Grok remains disabled by default. - SpaceXAI is preparing to launch Grok 4.7, which scales up to a massive 2.1 trillion parameters and received specialized training on internal SpaceX engineering data. - Elon Musk confirmed a slight delay for Grok 4.7 to refine its reinforcement learning behavior after it gave up on hard tasks too early. - Microsoft now offers GPT, Claude, and Grok side-by-side, transforming Copilot from a single-model wrapper into an agnostic AI aggregator. **Why it matters:** This integration shows Microsoft hedging its bets beyond OpenAI and gives enterprise users specialized AI choices for complex technical tasks. --- Microsoft is officially bringing SpaceXAI’s Grok into Copilot, offering enterprise users a new AI model to power their workflows inside Word, Excel, and PowerPoint. The integration marks a significant expansion of Microsoft’s multi-model strategy, allowing businesses to choose between GPT, Claude, and now Grok for their daily productivity tasks. The rollout is currently launching as a preview exclusively for eligible Frontier Program customers. However, the initial release is geographically restricted; Microsoft has confirmed that Grok will not be available during the preview phase in the European Union, the European Free Trade Association, or the United Kingdom. To support the integration, Microsoft has officially added SpaceXAI to its Online Services Subprocessor List. ### How Administrators Can Enable Grok in Copilot Because the feature handles enterprise data, Grok is not activated automatically. Companies that want to test the SpaceXAI model must manually opt in through their administrative dashboard. - Access the Microsoft 365 admin center with Administrator Privileges. - Navigate to the Copilot AI model settings. - Toggle the separate admin setting for Grok, which remains disabled by default. Microsoft ensures that administrators will retain full control over any data processed by SpaceXAI models within supported Copilot experiences. The company plans to [evaluate](https://techcommunity.microsoft.com/blog/microsoft-copilot-blog/expanding-model-choice-in-copilot-with-grok/4555749?ocid=usoc_TWITTER_M365_spl100011235693323) customer feedback, usage patterns, and overall product fit before expanding Grok to a wider audience. All models undergo rigorous safety validation and Responsible AI reviews before deployment. ### The Delay of Grok 4.7 and Its 2.1 Trillion Parameters The Copilot integration arrives just as SpaceXAI prepares to launch its next major model, Grok 4.7. Reportedly scaling up to a massive 2.1 trillion parameters, the new model has received specialized training on internal SpaceX engineering data. This focus aims to deliver stronger performance on complex technical tasks and better efficiency, potentially trading raw response speed for lower token consumption. However, the highly anticipated release of Grok 4.7 has faced a slight setback. Earlier this month, Elon Musk announced the model would debut this week, but recently confirmed a delay to refine its reinforcement learning (RL) behavior. > Grok 4.7 needs a few more days to cook. We might have penalized response length too much (or something) in RL, as it still gives up on hard tasks (that it can do!) too early and isn’t yet sufficiently rigorous in checking its work. > > - Elon Musk, SpaceXAI ### The Enterprise AI Race Moves Beyond OpenAI Microsoft’s decision to integrate Grok into its core Office suite proves that the company is aggressively hedging its bets beyond its massive OpenAI partnership. By offering GPT, Claude, and Grok side-by-side, Microsoft is transforming Copilot from a single-model wrapper into an agnostic AI aggregator. The specific inclusion of Grok 4.7, with its unique training on SpaceX engineering data, could be a game-changer for technical users. While GPT excels at general text and Claude dominates long-context analysis, Grok’s engineering-heavy background might make it the superior choice for generating complex formulas in Excel or drafting highly technical documentation in Word. ## Sources - [iphoneincanada.ca](https://www.iphoneincanada.ca/2026/09/12/microsoft-adds-grok-to-copilot-in-word-excel-and-powerpoint/) ## Related topics - [Microsoft 365](https://coreiten.com/en/topic/microsoft-365)