Microsoft renames Bing Chat to Copilot and Bing Chat Enterprise to Copilot Pro, aiming to create a unified experience for consumer and commercial customers. Users signing into Bing with a corporate account will receive "commercial data protection" starting December 1, ensuring their data won't be saved or used to train AI models. Copilot Pro is now accessible in Windows, included in various Microsoft enterprise subscription plans, and available for $5 per month for other customers.