Microsoft Corporation (NASDAQ:MSFT) shares are trending Thursday following reports from Tuesday that the company is replacing OpenAI and Anthropic models with its own internally built AI in products like Excel and Outlook.
Microsoft shares are experiencing downward pressure.
What's pulling MSFT shares down?
Replacing OpenAI and Anthropic According to Bloomberg, tens of thousands of AI prompts in Excel and Outlook are now being completed each week using Microsoft's internally built MAI (Microsoft AI) models — a scale of usage that hasn't been previously reported.
Previously, both applications relied more heavily on models from OpenAI and Anthropic.












