Jul 23, 2025 11:17:00

OpenAI and Oracle sign contract to build 4.5 gigawatt data center as part of 'Stargate,' a massive project worth over 70 trillion yen that also includes SoftBank

OpenAI has announced that it has signed an additional investment agreement with Oracle to develop an additional 4.5 gigawatt data center as part of its $500 billion (approximately 73 trillion yen) AI infrastructure construction plan,

Stargate .

Stargate advances with 4.5 GW partnership with Oracle | OpenAI
https://openai.com/index/stargate-advances-with-partnership-with-oracle/

Stargate is a large-scale AI infrastructure construction project led by OpenAI. The initial investors are SoftBank Group, OpenAI, Oracle, and MGX, and they plan to invest $500 billion (about 73 trillion yen) over four years from 2025.

OpenAI and SoftBank announce 'Stargate' project to establish AI data center with investment of over 70 trillion yen - GIGAZINE

OpenAI has now announced an agreement with Oracle for additional investment plans that will see the construction of an additional 4.5 gigawatt data center, bringing Stargate's total capacity to over 5 gigawatts and more than 2 million GPUs.

Construction of a data center is already underway in Abilene, Texas, and the company says it will create hundreds of thousands of jobs through its construction and operations. OpenAI has released aerial photos of the data center under construction.

The inside of the data center is also available.

Regarding Stargate, it was reported in May 2025 that negotiations with lenders had stalled due to the impact of Trump tariffs , but on July 21, 2025, The Wall Street Journal reported that 'SoftBank Group Chairman Masayoshi Son and OpenAI CEO Sam Altman are at odds over key conditions such as the location of the data center.' 'SoftBank Group and OpenAI had promised to 'immediately invest' $100 billion (about 15 trillion yen) when the plan was announced in January 2025, but as of July 2025, they have switched to a modest goal of 'building a small data center in Ohio by the end of 2025.'' The report pointed out the stagnation of the plan.

SoftBank and OpenAI's 70 trillion yen investment project 'Stargate' is stalled due to Trump tariffs and unable to reach an agreement with lenders - GIGAZINE

OpenAI has also reportedly reopened a $40 billion funding round to cover Stargate-related funding.