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

The $500 billion Stargate project will be critical to "maintain American leadership in AI," one of the partners said in a statement.

“I am Masayoshi Son, and SoftBank is not a bank ... billion in more than 250 companies in the U.S. These include Uber, Nvidia, Sprint, OpenAI (developer of ChatGPT) and a host of start ...

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.

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.

Nvidia (NASDAQ: NVDA ... Oracle chairman Larry Ellison, and Softbank CEO Masayoshi Son to announce Stargate's AI infrastructure initiative. The joint venture is focused on expanding AI-focused ...

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

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.

Shares of NVIDIA Corporation (NASDAQ: NVDA) and other AI stocks such as Dell Technologies Inc. (NYSE: DELL), Oracle Corporation (NYSE: ORCL) and Arm Holdings plc (NASDAQ: ARM) are trading higher Tuesday buoyed by reports of a major private sector investment in artificial intelligence infrastructure.

The Japanese conglomerate is in talks to spend up to $43 billion to boost the ChatGPT developer.

SoftBank Group, led by Masayoshi Son, is in discussions to invest up to $40 billion in OpenAI, valuing it at $300 billion. This follows a shift in AI dynamics with DeepSeek overtaking ChatGPT in US App Store rankings,

DeepSeek, the Chinese artificial intelligence startup that sent tech stocks reeling this week, sparked fresh concerns about U.S. companies losing