In his newly built palace near Tokyo, lined by stone statues of Roman emperors and surrounded by an 18-hole golf course, Masayoshi Son was stewing. After declaring for years the imminent arrival of the artificial-intelligence revolution,

Masayoshi Son founded SoftBank in 1981. It has invested millions in some of Silicon Valley's biggest tech companies.

SoftBank is in talks to invest up to $25 billion in OpenAI as part of a broader partnership that could see the Japanese conglomerate spend more than $40 OpenAI is in talks to raise up to $25 billion from SoftBank amid DeepSeek shock.

SoftBank (SFTBY) is reportedly considering a massive investment of up to $25 billion in Microsoft (MSFT)-backed OpenAI, according to sources

“I am Masayoshi Son, and SoftBank is not a bank ... Big U.S. technology companies, including Alphabet, Meta, Microsoft, Nvidia and Amazon are set to spend more than $1 trillion in coming ...

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

Two of the most powerful tech leaders in the world, Microsoft CEO Satya Nadella and Tesla CEO Elon Musk, are not exactly fans of the $500 billion Stargate AI initiative announced by Trump this week.

SoftBank CEO Masayoshi Son speaks at a White House press conference on President Donald Trump's plan for AI infrastructure investment. MASA SON, SOFTBANK: Oh, thank you. That would be helpful. That's good.

Microsoft on Tuesday said it has changed some key terms of a deal with OpenAI after the ChatGPT creator announced a joint venture with Oracle and Japan's SoftBank Group to build up to $500 billion of new AI data centers in the United States.

which SoftBank CEO Masayoshi Son claims is coming very, very soon. Microsoft is OpenAI's largest investor, with a 49% stake, translating to $14 billion. As part of its complicated partnership with ...

SoftBank CEO Masayoshi Son, OpenAI's Sam Altman and Oracle's Larry Ellison joined President Donald Trump at the White House to tout the $500 billion investment in the "Stargate" venture.

Microsoft, along with Nvidia and Arm, will be a "technology partner" in the new venture, but is not listed as an equity funder. SoftBank CEO Masayoshi Son is will be the entity's board chairman ...