OpenAI raises $6.6 billion in largest VC round ever AxiosOpenAI Nearly Doubles Valuation to $157 Billion in Funding Round The Wall Street JournalThe investors behind OpenAI’s historic $6.6 billion funding round Business InsiderOpenAI closes funding at $157 billion valuation, as Microsoft, Nvidia, SoftBank join round CNBCOpenAI just raised $6.6 billion to build ever-larger AI models The Verge