Microsoft Copilot

Microsoft Copilot, formerly Bing Chat, is Microsoft's AI assistant powered by OpenAI's GPT-4o model with deep integration across the Microsoft ecosystem. What sets Copilot apart from standalone chatbots is its native embedding in Windows 11, Microsoft 365 apps, Edge browser, and Bing search. In Word, it can draft documents, rewrite sections, and summarize long reports.

In Excel, it generates formulas, creates charts from natural language descriptions, and analyzes datasets. In PowerPoint, it builds entire presentations from a brief outline. In Teams, it summarizes meeting transcripts and highlights action items. The free web version at copilot.microsoft.com includes web search with citations, image generation via DALL-E 3, and basic document analysis.

The Copilot Pro subscription adds priority access to GPT-4o during peak times and unlocks AI features across Microsoft 365 apps. For enterprises, Copilot for Microsoft 365 adds organizational data grounding through Microsoft Graph, meaning it can reference your company's emails, documents, and calendar when answering questions.

It is the most practical choice for users already embedded in the Microsoft ecosystem who want AI augmenting their existing workflow rather than replacing it.