Microsoft values its stake in OpenAI at $135 billion, a quarter of the new group
Microsoft has disclosed that its stake in OpenAI is valued at $135 billion, which is roughly equivalent to about a quarter of the new OpenAI...
OpenAI
OpenAI hits $500 billion valuation after $6.6 billion secondary share sale
OpenAI now carries a $500 billion valuation after a secondary share sale that let current and former staff sell about $6.6 billion worth of stock....