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

SoftBank is reportedly considering a historic $25 billion investment in OpenAI, which could surpass Microsoft's stake and position SoftBank as the ChatGPT maker's largest investor.

(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.

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.

SoftBank (SFTBY) is in discussions to invest $15B-$25B in Open AI, Deepa Seetharaman of The Wall Street Journal reports. Some of the equity

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

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

SoftBank is in talks to invest $15 billion to $25 billion in OpenAI, a deal that would see the Japanese conglomerate displace Microsoft as the ChatGPT maker's biggest investor. SoftBank stock fell 1.1% in Tokyo on Thursday.

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”.

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

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 is in talks to inject up to $25 billion directly into OpenAI, positioning the Japanese tech conglomerate to become the ChatGPT maker's largest financial backer, according to initial reporting from the Financial Times on Wednesday evening.