Altman steps down from Helion board amid OpenAI energy talks
Sam Altman, OpenAI's CEO, just resigned as chair of Helion Energy's board after more than a decade with the fusion startup.
With both companies exploring big partnerships, juggling roles became tricky.
Altman will still keep his financial stake in Helion, but won't be involved in any deals between the two.
OpenAI's potential energy deal with Helion
OpenAI is in advanced talks to buy 12.5% of Helion's future energy output, enough to power AI growth as electricity demands skyrocket.
This could mean 5 gigawatts by 2030 and a massive 50 gigawatts by 2035.
It's all about making sure AI keeps running strong, even as the current power grid gets stretched.
Altman's influence on Helion's journey
Altman was a key backer and investor in Helion, participating in funding rounds including the January 2025 $425 million Series F that valued the company at $5.4 billion.
Helion's CEO David Kirtley credits him with helping shape the company during his time on the board.
Helion's roadmap to commercial fusion tech
Helion has raised more than $1 billion since its start in 2013 and is now working on commercial fusion tech with its Polaris prototype.
The company also has big delivery deals lined up, including a previously announced deal with Microsoft.