Microsoft’s OpenAI Bet Pays Off with $30 Billion Revenue Windfall In Two Years: Report

• Microsoft’s revenue from OpenAI products has jumped year-on-year (YoY).
• OpenAI spent $23 billion on Azure rentals between 2023 and 2025.  
• Microsoft has ended its exclusive rights to sell OpenAI products.

Microsoft (MSFT) has successfully recouped more than double its initial $13 billion investment in OpenAI, generating approximately $30 billion in related revenue between 2023 and 2025. 

The findings, based on an analysis of company filings and internal documents, reveal that the strategic partnership has accelerated Microsoft’s financial growth despite increasing competition and a high-stakes legal battle involving Elon Musk, The Information reported. 

However, investors of late have expressed tech valuation concerns and raised questions over future growth, given the high costs of building the data centers and purchasing the semiconductor and memory chips required to run the large-scale AI models. 

MSFT shares have dropped about 9% over the past year.  

OpenAI Is Microsoft’s Revenue Engine 

The bulk of Microsoft’s gains stems from OpenAI’s massive infrastructure needs. OpenAI paid Microsoft roughly $23 billion for Azure server rentals between 2023 and 2025. Beyond hardware, Microsoft’s sales of AI-integrated products—such as Office 365 Copilot and GitHub Copilot—contributed the second most to the total. 

In April this year, Microsoft gave up its exclusive rights to sell OpenAI’s GPT models. Ever since, OpenAI has sold more of its products compared to MSFT, according to internal financials secured by The Information. 

In 2025, OpenAI’s direct sales to businesses reached nearly $2 billion, while Microsoft’s revenue from selling the same models through Azure grew to $1.5 billion. 

The Musk Lawsuit And Trial Testimony

In a federal trial in Oakland, Elon Musk is seeking $150 billion in damages from OpenAI and Microsoft. Musk alleges the companies breached OpenAI’s original charitable mission by pursuing a profit-driven model.

Testifying on Monday, Microsoft CEO Satya Nadella defended the partnership as a "calculated risk". Nadella admitted to prioritizing OpenAI's computing needs over other internal projects to create a "win-win partnership". However, the trial has also exposed internal friction; former OpenAI Chief Scientist Ilya Sutskever testified to a "pattern of lying" by CEO Sam Altman, who took the stand today to firmly deny Musk's claims.

MSFT And OpenAI Retail View

Retail sentiment on Stocktwits was ‘bearish’ for MSFT and ‘bullish’ for OpenAI. Message volumes were ‘normal’ for both. 

MSFT stock eased about 2% on Tuesday and has lost 16% year-to-date.

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