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.

Masayoshi Son, the Japanese tycoon helming US President Donald Trump’s big new AI push, is the son of an immigrant farmer with a spectacular but also sketchy investment

Shares of SoftBank Group Corp. jumped as much as 8.1% after US President Donald Trump announced a multi-billion dollar push by the Japanese company, OpenAI and Oracle Corp. to build AI infrastructure in the US.

At the core of this initiative is the formation of a new company, The Stargate Project, a joint venture between OpenAI, SoftBank, Oracle, and MGX. Over the next four years, this project will invest an astonishing $500 billion to develop cutting-edge AI infrastructure in the U.S., aiming to secure the country’s leadership in artificial intelligence.

US President Donald Trump on Tuesday announced a major investment to build infrastructure for artificial intelligence (AI) led by Japan’s Softbank Group Corp, cloud giant Oracle Corp and ChatGPT-maker OpenAI.

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 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.

OpenAI has announced that it's teaming up with Softbank and Oracle on $100 billion data center project in the U.S.

The initiative announced by President Donald Trump will aim to "secure American leadership in AI" while also creating jobs and economic benefit.

Masa first encountered Steve Jobs in the mid-1980s at the annual Comdex trade fair in Las Vegas. Sometime in the summer of 1998, they had their first serious conversation under a cherry tree at the Woodside, California, home of Larry Ellison, boss of the Oracle software group and a fellow Japanophile.

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.