OpenAI Leads $500 Billion Stargate AI Infrastructure Project

On January 21, 2025, President Donald Trump announced the OpenAI-led “Stargate Project” at the White House. As a joint venture between OpenAI, SoftBank, Oracle, and MGX, this marks the largest-ever AI infrastructure project with a total investment of $500 billion by 2029¹. This announcement signals that the AI technology development race has entered a new phase.

Scale and Structure of the Stargate Project

Established as Stargate LLC in Delaware, this joint venture will begin with an initial investment of $100 billion and scale up to $500 billion over the next four years.

Funding Structure:

OpenAI: $19 billion (40%)
SoftBank: $19 billion (40%)
Oracle: $7 billion
MGX: $7 billion
Remainder from limited partners and debt financing

Management Structure:

Chairman: Masayoshi Son, SoftBank CEO
Financial Responsibility: SoftBank
Operational Responsibility: OpenAI

The project is expected to create over 100,000 jobs in the United States and become “the largest AI infrastructure project in history”¹.

Critical Changes in Microsoft Partnership

The most notable aspect of this announcement is the evolution of the OpenAI-Microsoft relationship. The partnership has shifted from an exclusive cloud provider agreement to a “Right of First Refusal” arrangement¹.

Key Changes:

OpenAI API remains exclusive to Azure
Microsoft retains rights to OpenAI products
Revenue sharing agreement continues until 2030
Microsoft has right of first refusal for new capacity

This change allows OpenAI to use other cloud providers for additional infrastructure for research and model training if Microsoft declines. This represents a crucial turning point that enables collaboration with Oracle in the Stargate project.

Data Center and Infrastructure Construction

At the core of the Stargate project is the construction of data centers across the United States. The first phase has already begun in Abilene, Texas, with a planned scale of 1 million square feet¹.

Expansion Plans:

Deployment across multiple U.S. states
Considering expansion to Japan
Planned construction in the United Arab Emirates

Each data center will be specifically designed for next-generation AI model training and inference, built as dedicated infrastructure for OpenAI.

Technology Partners and Strategic Significance

The Stargate project includes ARM, Microsoft, NVIDIA, and Oracle as key technology partners¹. This international technology collaboration aims to secure U.S. competitive advantage over Chinese AI technology.

In a policy white paper released last week, OpenAI stated that “U.S. AI infrastructure investment will secure American AI technology superiority over Chinese technology while creating new jobs and economic opportunities.”

Impact and Opportunities for Japan

The Stargate project’s consideration of expansion to Japan holds significant implications for Japan’s AI strategy. While the investment scale differs markedly from Japan’s announced national AI strategy, this presents opportunities for international collaboration.

Impact on Japanese Companies:

Manufacturing: Accelerated product development cycles through AI utilization
Finance: Risk analysis and service innovation through advanced AI models
Energy: Increased demand for power infrastructure for large-scale data centers

The fusion of Japan’s advanced manufacturing technology with AI technology presents opportunities to establish new competitive advantages.

Energy and Sustainability Considerations

The Stargate project includes plans for sustainable solutions to address the massive power consumption required for large-scale AI computing. Leveraging SoftBank’s expertise in renewable energy businesses, the initiative plans to minimize environmental impact. On the data center power demand front, next-generation nuclear reactors such as those from Oklo Inc. are also drawing industry attention as a potential power source.

Future Outlook and Challenges

According to a Bloomberg report from May 2025, SoftBank is still developing detailed funding plans, with concrete discussions with potential investors yet to come. Technical and financial challenges remain for realizing this massive project.

However, political support is expected, with President Trump expressing intention to utilize executive orders to facilitate construction. The Stargate project marks the beginning of a new phase in AI technology development competition and will undoubtedly have significant impact on AI strategies worldwide, including Japan.