Tools
Copilot enterprises can set any default model
GitHub now lets enterprise admins pick any preferred Copilot model as the default for new conversations through managed settings, as of September 2, 2026. Teams can get their own default when the model key is marked overridable and team-mappings.json is updated; everyone else inherits the enterprise default. The feature is generally available for Copilot Business and Copilot Enterprise in the Copilot app, Copilot CLI, and Visual Studio Code — this is GitHub Copilot, not Microsoft 365 Copilot.