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.

Elon Musk is already casting doubt on OpenAI’s new, up to $500 billion investment deal with SoftBank (SFTBY) and Oracle (ORCL), despite backing from his allies — including President Donald Trump.

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.

The two companies would then both own 40% of Stargate, the tech outlet said, citing comments by Chief Executive Officer Sam Altman to colleagues

The ChatGPT maker will hold a 40% interest in Stargate, and would act as an extension of OpenAI, the report said, citing OpenAI CEO Sam Altman speaking to colleagues. OpenAI and SoftBank did not immediately respond to Reuters' requests for comment.

EFishery Pte, one of Indonesia’s most prominent startups, may have inflated its revenue and profit over several years, according to an internal investigation triggered by a whistleblower’s claim about the company’s accounting.

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.

US President Donald Trump announced that OpenAI, SoftBank Group and Oracle will unveil Stargate and invest $500 billion over the next four years to help the United States stay ahead of China and other rivals in the global AI race.

The Trump White House has ordered a pause on infrastructure spending approved during the last administration, and is promoting new spending on digital infrastructure to support artificial intelligence.

Asian shares were mixed on Thursday after China rolled out more moves to try to boost its lagging stock markets by raising confidence that prices will rise. Officials in Beijing said pension funds and mutual funds would be required to increase purchases of shares,

Japanese investors raised their holdings in foreign stocks, driven by a benign U.S. core inflation report that fuelled expectations of Federal Reserve cuts and boosted global equities, while a strong yen also lifted domestic buying power.