Nvidia-backed SiFive hits $3.65 billion valuation for open AI chips

SiFive, a RISC-V open chip design company, raised $400 million in a Series C round led by Atreides Management, valuing the company at $3.65 billion. Nvidia and other major institutional investors participated, signaling confidence in open-source alternatives to x86 and ARM architectures. The funding demonstrates investor interest in independent chip design platforms for AI infrastructure.