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Introducing a New Design for Microsoft 365 Copilot

Jon Friedman, Chief Design Officer at Microsoft, has announced a major redesign of Microsoft 365 Copilot. The core philosophy represents a fundamental shift: moving from layering AI onto static tools to building a truly adaptive system.

The New Prompt Line: A Task-Aware Workspace

The familiar static text box is being replaced by a task-aware workspace — a prompt line that understands context, intent, and the user's broader workflow.

Key Changes

  • Navigation Redesign — A new left pane houses both the agent interface and conversation history, making it easy to revisit past interactions.
  • Work IQ Layer — An intelligence layer that grounds AI responses in a broader context spanning emails, files, chats, and meetings — not just the current document.
  • Model Choice — Users can now choose between different AI models depending on the task.

Performance Improvements

The redesign also brings measurable performance gains:

  • 50% faster load times
  • 10% better response times

Usage Increases After Rollout

Application Usage Increase
Word +27%
Excel +33%
PowerPoint +43%
Outlook +30%

New Interaction Models

  • Side Pane as Editing Partner — The Copilot pane now functions as a collaborative editing assistant.
  • Canvas Invocation — AI can be invoked directly within paragraphs, cells, and slides.
  • Capability-Focused Agents — Specialized agents for specific tasks replace the one-size-fits-all approach.

The strategic vision is clear: a shift from "individual features to connected experiences, from adding capabilities to shaping outcomes."


Source: Microsoft 365 Blog — Introducing a New Design for Microsoft 365 Copilot