OpenAI gets $4 billion revolving credit line, giving it more than $10 billion in liquidity CNBCOpenAI’s Altman Concentrates Power on Path to $157 Billion Valuation BloombergThe 3 possible outcomes for OpenAI’s future: Expert explains Yahoo FinanceOpenAI asks investors to avoid five AI startups including Sutskever’s SSI, sources say ReutersOpenAI closes funding at $157 billion valuation, as Microsoft, Nvidia, SoftBank join round CNBC