Microsoft has begun reducing its reliance on third-party AI models from OpenAI and Anthropic by deploying its own in-house MAI models in applications such as Excel and Outlook. Tens of thousands of AI prompts in these applications are now being completed each week using Microsoft’s proprietary models, though the company still maintains some dependence on external providers. The cost-reduction strategy aligns with a broader industry trend, as other major tech companies including Amazon, Meta, and Uber have taken similar measures to curb AI spending.
