xAI 发布 Grok 4.5，全面登陆多平台并集成 Office
原标题：Bringing Grok 4.5 to iOS, Android, Web, and X
AI 摘要
xAI 于 2026 年 7 月 22 日发布其最智能的模型 Grok 4.5，现已登陆 grok.com、X、iOS 和 Android 平台。该模型在理解用户意图、长对话跟踪和回答可靠性方面有所提升，并能高效推理，更快给出答案。Grok 4.5 还能端到端完成任务，如构建电子表格、生成幻灯片和图表、起草文本以及从长 PDF 中提取要点。此外，Grok 通过 Microsoft 365 插件可直接在 Word、Excel、PowerPoint 和 Outlook 中使用。
正文节选
Grok 4.5, our most intelligent model yet, is now on grok.com, X, iOS, and Android. Grok 4.5 now powers Grok wherever you use it, live today on grok.com, on X, and in the Grok apps for iOS and Android. Grok 4.5 is our most capable model yet. In everyday use, it follows what you're actually asking, keeps track of longer conversations, and gives clearer, more reliable answers. Ask it to explain something unfamiliar, weigh a big purchase, plan a trip, or dig into a topic you're curious about. And on