Microsoft in the Spotlight After Reports Show Company Is Swapping Out Anthropic, OpenAI for In-House AI -

Microsoft replaces OpenAI, Anthropic with its own AI models in Excel, Outlook

Microsoft replaces OpenAI and Anthropic with proprietary MAI models in Excel and Outlook, handling tens of thousands of prompts weekly to cut costs. This threatens Anthropic and forces tech leaders to reconsider vendor choices as Microsoft undercuts incumbents.