MSFT Stock Jumps 2% — Microsoft Looks To Save Cost By Reportedly Swapping OpenAI, Anthropic Models For In-House AI
Microsoft has begun routing Copilot queries in key Office apps away from external partners such as OpenAI and Anthropic to its proprietary models.
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Microsoft Replaces Some OpenAI and Anthropic Models in Office Apps With In-House AI
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Microsoft replaces OpenAI and Anthropic with its own AI models
Microsoft is migrating key services, including Excel, Outlook, and GitHub Copilot, to its internal MAI (Microsoft AI) models. Microsoft is d

Microsoft expands in-house AI models to reduce reliance on OpenAI, Anthropic
Microsoft is reportedly accelerating the use of its internally developed artificial intelligence models across its software ecosystem as the
Microsoft moves to reduce AI dependency on OpenAI and Anthropic partners
The most expensive habit a company can have is paying someone else for the thing it sells.

Microsoft Integrates Anthropic AI Models into Microsoft 365 Copilot
Microsoft is bringing Anthropic’s Claude Sonnet 4 and Claude Opus 4.1 to Microsoft 365 Copilot users.
Microsoft Is Quietly Swapping the AI Inside Copilot
Microsoft now routes Excel and Outlook Copilot prompts to its own MAI models instead of OpenAI and Anthropic. What the quiet swap means for

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