By Sam Nussey and Anton Bridge TOKYO (Reuters) -SoftBank CEO Masayoshi Son's plan to invest billions in AI in the United States shows one way to handle the new Trump administration: go big and deal with the details later.

SOFTBANK Group and OpenAI each plan to commit US$19 billion of capital to Stargate, the US$100 billion US artificial intelligence (AI) endeavour President Donald Trump unveiled this week, the Information reported.

Masayoshi Son, the Japanese tycoon helming U.S. President Donald Trump's big new AI push, is the son of an immigrant pig farmer with a spectacular but also sketchy investment record. Trump's "friend Masa" was born in Japan in 1957 to ethnic Korean parents who scratched a living rearing chickens

U.S. President Donald Trump announced on January 21 that Japan's SoftBank Group, Open AI and Oracle will together

The president said it will be the largest AI infrastructure ever built and that it will help counter technology threats from China and other countries.

The Trump Administration has announced an AI infrastructure joint venture in the U.S. named “Stargate,” comprised of OpenAI, SoftBank Group (OTC:SFTBF) (OTC:SFTBY), Oracle Corp (NYSE:ORCL), and Abu Dhabi’s MGX.

SoftBank Group shares jumped after the company and ChatGPT-maker OpenAI announced plans to invest up to half a trillion dollars in artificial-intelligence infrastructure in the U.S. Shares rose 8.8% to 10,060 yen, or equivalent to $64.69, on Wednesday in Tokyo, after climbing as much as 9.2% earlier, to their highest level since July.

The joint venture will deploy US$100 billion “immediately” and have a goal of increasing to “at least” US$500 billion in AI projects, including data centers and physical campuses.

The $500B Stargate Initiative, led by Trump, OpenAI, SoftBank, and Oracle, is set to revolutionize U.S. AI infrastructure.

President Donald Trump talked up a joint venture investing up to $500 billion for infrastructure tied to AI by a new partnership formed by OpenAI, Oracle and SoftBank.

SoftBank Group Corp., OpenAI, and Oracle Corp. are forming a $100 billion joint venture to fund artificial intelligence infrastructure, an effort unveiled with President Donald Trump aimed at speeding development of the emerging technology.