Seattle-area company Helion Energy gets $425 million from investors including Sam Altman and Softbank to pursue clean energy's "Holy Grail."

(Reuters) - Helion, a startup working to generate electricity from nuclear fusion, on Tuesday said it has raised $425 million in venture funding from a group of investors including SoftBank Group's Vision Fund 2.

SoftBank is in talks to invest up to $25 billion in OpenAI, which would make it the company’s biggest backer, CNBC has confirmed.

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.

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

OpenAI, Oracle and SoftBank formed a new joint venture called Stargate to invest in data centers, building on major U.S. investments in the technology.

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. For a Japan Inc anxious about how to navigate the second term of President Donald Trump - and the threat of steep tariffs or other punitive measures - that approach may not be so easy to replicate.

Tech bros have taken to X in an extraordinary public spat to question each other’s financial muscle over Donald Trump’s $800b AI joint venture. Elon Musk said, “they don’t have the money”.

The White House broke its days-long silence about SpaceX CEO Elon Musk on Friday, as questions swirled about whether Musk had rankled President Donald Trump when he publicly bashed Stargate, the Trump administration's first major tech initiative.

President Trump hosted executives from Softbank, OpenAI and Oracle at the White House Tuesday to announce “Stargate,” a $500BN private-sector plan to build new AI data centers.

Here are the top takeaways from Trump’s press conference. One of Trump’s first executive actions as the 47th president of the nation was to grant pardons and commutations to all of the defendants convicted over the Jan. 6 Capitol riot, sparking criticism from Democrats who denounced the move.

Mr. Trump had claimed the A.I. announcement as an early trophy, taking credit for the companies’ decision to spend up to $500 billion building data centers.