OpenAI raised $110B at a $730B pre-money valuation, up from $500B in a secondary financing in Oct.; Amazon invested $50B, Nvidia and SoftBank invested $30B each (CNBC)

CNBC: OpenAI raised $110B at a $730B pre-money valuation, up from $500B in a secondary financing in Oct.; Amazon invested $50B, Nvidia and SoftBank invested $30B each   —  OpenAI has closed a $110 billion funding round, a financing that's more than double the size of its last raise a year ago, which was a record for a private tech company.