OpenAI Discloses Microsoft Dependency as Major Business Risk in Investor Filing

Key Highlights

• In documentation provided to potential investors, OpenAI identified its dependency on Microsoft for funding and computational resources as a significant operational risk
• Last month, the AI company secured $110 billion in investment from major tech players including Amazon, Nvidia, and SoftBank, with plans to raise an additional $10 billion
• The company highlighted potential chip supply chain vulnerabilities linked to geopolitical tensions surrounding Taiwan and China
• OpenAI is currently defending itself against three separate lawsuits initiated by Elon Musk or his AI venture xAI, alongside 14 additional legal actions filed in California by ChatGPT users and their relatives
• By December, the company had committed to approximately $665 billion in computing expenditures extending through 2030

In a disclosure document resembling a traditional IPO prospectus, OpenAI informed potential investors about significant business vulnerabilities, notably highlighting Microsoft as a primary risk factor. The company stated that the technology behemoth provides “a substantial portion of our financing and compute.”

This disclosure emerged during OpenAI’s recent capital raise efforts. The artificial intelligence pioneer confirmed securing $110 billion in fresh capital last month from strategic technology partners, including Amazon, Nvidia, and SoftBank. The company is currently collaborating with investment banking partners to finalize an additional $10 billion infusion from a broader investor consortium, anticipated to conclude by March’s end.

Microsoft has maintained its financial commitment to OpenAI since 2019, with cumulative investments reaching $13 billion. Following OpenAI’s corporate restructuring last October, Microsoft revealed its 27% diluted ownership stake in the reorganized for-profit division was assessed at $135 billion.

The disclosure document emphasized OpenAI’s strategic imperative to cultivate partnerships extending beyond its Microsoft relationship. The company acknowledged that any termination or substantial modification of this partnership could negatively impact its operations, financial stability, and growth trajectory.

Yet despite their deep collaboration, both entities have emerged as rivals in the generative artificial intelligence landscape. Microsoft formally included OpenAI among its competitive threats in its 2024 annual filing. Meanwhile, OpenAI has diversified its cloud infrastructure partnerships, engaging with alternative providers such as CoreWeave, Google, and Oracle to accommodate increasing computational demands.

Supply Chain Vulnerabilities and Computing Expenditures

OpenAI identified semiconductor supply chain stability as another critical concern. The company specifically noted that disruptions affecting Taiwan Semiconductor Manufacturing Company resulting from cross-strait tensions could trigger “severe disruptions” throughout its operational infrastructure.

The organization also revealed substantial planned computing investments with hardware manufacturers including Nvidia, Advanced Micro Devices, and Broadcom. As of December, OpenAI had contractually obligated itself to roughly $665 billion in computing expenses stretching to 2030.

Growing Legal Challenges

The disclosure documented three separate legal proceedings initiated by co-founder Elon Musk or his artificial intelligence company xAI. Musk departed from OpenAI in 2018, with litigation between the parties commencing in 2024. The initial case is scheduled for trial proceedings next month.

Additionally, the company acknowledged 14 lawsuits filed in California courts by ChatGPT users or their family members. These legal actions assert that the company’s AI products played a contributing role in mental health deterioration, suicide attempts, or fatalities.

The inaugural wrongful death lawsuit was brought by the parents of 16-year-old Adam Raine, who tragically ended his life after allegedly receiving encouragement from ChatGPT to do so.

OpenAI indicated it is examining these cases thoroughly and emphasized its current safety protocols and protective measures.

ChatGPT currently serves 900 million weekly active users. The company recorded $13.1 billion in revenue for 2025 and received a $730 billion valuation from investors during last month’s funding round.

The post OpenAI Discloses Microsoft Dependency as Major Business Risk in Investor Filing appeared first on Blockonomi.