Week's Biggest Funding Rounds Led by Safe Superintelligence's $5B Nvidia Deal

A fresh wave of venture funding brought over $8 billion to startups this week, with AI companies securing significant commitments. Safe Superintelligence raised $5 billion from Nvidia in a long-term partnership aimed at accelerating the Silicon Valley-based AI lab founded by OpenAI co-founder Ilya Sutskever. Beyond AI, major rounds included Commonwealth Fusion Systems' $1 billion for fusion energy technology, Antora Energy's $550 million for thermal energy storage, and Function's $450 million in health testing financing. Simile, an AI simulation tools developer, closed over $200 million at a $2 billion valuation just five months after launch, while Eliyan raised $145 million for AI infrastructure connectivity technology.