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

Helion’s nuclear fusion promises have garnered the attention of Silicon Valley—and raised concerns amongst scientists wary of its aggressive timeline.

OpenAI CEO Sam Altman's decision to join President Trump's "Stargate" AI initiative marks a stark reversal for the tech CEO, who previously was a vocal critic of Trump.

OpenAI CEO Sam Altman has publicly applauded competitor DeepSeek’s R1 model in a recent social media post.

Sam Altman, the CEO of OpenAI, has announced a shift in his previously critical perspective on President Donald Trump. Newsweek has contacted OpenAI and the White House for comment via email.

OpenAI chief executive Sam Altman has welcomed the debut of DeepSeek’s R1 model and has promised to deliver better AI models. The Chinese artificial intelligence start-up that rocketed to global prominence has delivered an “impressive model, particularly around what they’re able to deliver for the price,” Altman wrote.

The Elon Musk-Sam Altman feud entered a new hot phase this week on X following President Trump's announcement of Stargate, a new $500 billion AI infrastructure joint venture funded in part by OpenAI,

OpenAI CEO Sam Altman, Oracle founder Larry Ellison and SoftBank CEO Masayoshi Son comment on President Trump’s Stargate AI investment project in an interview with FOX News anchor Bret Baier on ‘Special Report.

U.S. President Donald Trump announced Stargate, a $500 billion AI infrastructure project that's expected to provide 100,000 jobs and boost the American economy, but Elon Musk believes the three companies leading the project don't have the funds.

The Stargate project has big implications for U.S. AI leadership, but also for who's winning the new president's ear.

SoftBank, OpenAI, and Oracle are launching a $500 billion joint venture named Stargate to fund AI infrastructure in the U.S. The initiative, praised by President Trump, aims to deploy $100 billion immediately for projects like data centers and cancer research.