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Microsoft has rolled out a visual overhaul for Copilot in Microsoft 365, replacing the colorful interface with a predominantly black-and-white, text-forward design. The redesign, aimed at making the AI assistant feel "present but not imposing," includes a new adaptive prompt surface and consistent side panel placement across Word, PowerPoint, and Excel.

Microsoft is expanding Copilot Cowork availability and introducing a Critique function that enables one AI model to review another's output. The update also includes a new Researcher agent claiming best-in-class deep research performance, outperforming Perplexity by 7 points, and a Model Council feature for direct model comparison.