Microsoft is reportedly integrating custom and open-source AI models into its Microsoft 365 Copilot product.Microsoft 365 Copilot automates common tasks in the productivity suite and provides assistance in managing Microsoft 365 deployments.Incorporating new AI models into Copilot is expected to reduce operating costs and may lead to lower prices for customers.Microsoft is also reducing its reliance on OpenAI in other areas, such as GitHub Copilot coding assistant.