ChatGPT
The default general-purpose assistant for drafting buyer emails, specs and follow-ups.
ChatbotsMicrosoft's assistant across Windows, Edge and Office for everyday business work.
Microsoft Copilot is the assistant embedded across Windows, Edge, Bing and Microsoft 365. For teams already living in Outlook and Excel, it is the lowest-friction way to get AI into daily work.
The free consumer tier covers web chat with image generation. Copilot Pro and Microsoft 365 Copilot add deeper Office integration — drafting in Word, analysis in Excel, recap in Teams.