xAI has released Grok 4.5 across grok.com, X, and its mobile apps for iOS and Android. This update positions Grok 4.5 as the company's most intelligent and capable model to date.

  • The model follows user intent more accurately, manages longer conversations, and provides clearer answers.
  • It reasons more efficiently on complex questions, reducing response times.
  • Capabilities include building spreadsheets, creating slides from outlines, drafting prose, and summarizing PDFs.
  • Integration is available directly within Microsoft 365 applications via add-ins for Word, Excel, PowerPoint, and Outlook.

The release makes the latest model accessible across all major platforms, allowing users to utilize advanced reasoning and document processing features on both desktop and mobile devices.