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3d ago

Microsoft Shifts to In-House AI Models for Excel and Outlook

Jul 7, 2026
AI Summary

Microsoft is transitioning from using OpenAI and Anthropic models to its own AI technology in applications like Excel and Outlook. This change aims to reduce costs associated with third-party AI services.

Microsoft Shifts to In-House AI Models for Excel and Outlook
  • Microsoft is replacing OpenAI and Anthropic AI models with its own internally developed models in some applications.
  • This shift is occurring in widely used software products such as Excel and Outlook.
  • Tens of thousands of AI prompts in these applications are now being processed weekly using Microsoft's MAI models.
  • The decision is part of Microsoft's strategy to lower AI-related expenses.
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