Sam Altman-backed fusion startup Helion in talks with OpenAI Helion nuclear fusion OpenAI sam altman Startups Technology Sam Altman-backed fusion startup Helion in talks with OpenAI Tim De Chant March 23, 2026 Helion is reportedly negotiating a deal that would see it sell 12.5% of its power output to... Read More Read more about Sam Altman-backed fusion startup Helion in talks with OpenAI