The effort is said to focus on the tech giant’s Microsoft 365 Copilot product. It’s an artificial intelligence assistant that ships with the eponymous productivity suite. Microsoft is reportedly working to integrate custom and open-source artificial intelligence models into the assistant, which is currently powered by technology from OpenAI.

Microsoft is reshaping its AI strategy for 365 Copilot by integrating in-house and third-party models, easing its reliance on OpenAI due to cost and speed concerns for enterprise users, according to sources.