Microsoft is routing Excel and Outlook Copilot prompts to its own MAI models to cut AI inference costs and reduce dependency on OpenAI and Anthropic.

Microsoft replaces OpenAI and Anthropic AI with its own models. Anthropic's valuation hitting $1.25T by December 31 at 90.5% YES.

Microsoft is routing some app features to its in-house MAI models instead of OpenAI and Anthropic, chipping away at its reliance on partners.