Microsoft Stocks Jump 2% as Company Replaces OpenAI Models with Proprietary AI

Microsoft Corp. (MSFT) stock gained 2% on Tuesday after the company began replacing AI models from OpenAI and Anthropic with its proprietary 'MAI' models in productivity software including Excel and Outlook. The shift aims to reduce multi-billion-dollar dependency on external AI providers and improve profit margins. Microsoft has invested $13 billion in OpenAI, and the proprietary models now handle tens of thousands of user requests weekly across both applications, according to Bloomberg.

Microsoft Redirects AI Workloads to Proprietary Infrastructure

Microsoft has begun redirecting a portion of AI workloads within its Copilot ecosystem to its in-house 'MAI' models, Bloomberg reported. Excel and Outlook, which previously relied primarily on models built by Anthropic and OpenAI, now process tens of thousands of user queries per week using Microsoft's proprietary technology.

The operational adjustment is designed to improve profit margins by eliminating expensive licensing and API fees paid to third-party developers. Microsoft AI Chief Mustafa Suleyman previously stated the company intends to scale back and eventually eliminate spending on Anthropic models.

Microsoft Plans MAI Model Expansion to GitHub and Teams

Microsoft has begun integrating its proprietary AI into GitHub Copilot. The company plans to deploy an internally developed speech-to-text model into its Teams collaboration platform in the coming months, Bloomberg reported.

The current volume of requests handled by Microsoft's internal models represents a small fraction of its total Copilot footprint.

MSFT Stock Gains 1.75% Following Bloomberg Report

Microsoft shares climbed 1.75% following the Bloomberg report on the AI model transition. Retail sentiment on Stocktwits was neutral with normal message volumes, though retail chatter on the stock gained over 51% from the previous session.

MSFT stock has lost 20.5% over the past year. The iShares S&P 500 ETF (SPY), Invesco QQQ (QQQ), and Vanguard S&P 500 ETF (VOO), all of which include Microsoft as a key holding, had bullish retail sentiment.

FAQ

What AI models is Microsoft replacing in Excel and Outlook?

Microsoft is replacing AI models from OpenAI and Anthropic with its proprietary 'MAI' models in Excel and Outlook. The in-house models now handle tens of thousands of user requests weekly across both applications.

Why is Microsoft switching to proprietary AI models?

Microsoft is switching to proprietary AI models to reduce multi-billion-dollar dependency on external providers and improve profit margins by eliminating expensive licensing and API fees paid to third-party developers.

How much has MSFT stock changed over the past year?

MSFT stock has lost 20.5% over the past year. On Tuesday, Microsoft shares gained 2% and climbed 1.75% following the Bloomberg report on the AI model transition.