Microsoft has officially begun rolling out a significant update to its Copilot AI integration across Word, Excel, and PowerPoint. This new experience, previously referred to internally as “vibe working,” introduces an Agent Mode designed to transform the AI from a passive assistant into an active collaborator capable of direct manipulation within documents. According to Sumit Chauhan, Corporate Vice President of Microsoft’s Office Product Group , the initial versions of Copilot were limited by the capabilities of earlier foundational models. While the original iteration could answer questions or summarize text, it often struggled to execute complex commands directly on the “canvas” of a document or spreadsheet. Recent advancements in model reasoning and instruction-following have enabled this shift. The updated Agent Mode is engineered to handle multi-step edits reliably, ensuring that the AI maintains the user’s original intent while performing sophisticated tasks.…