Feb 27 : OpenAI's latest funding round valued the ChatGPT maker at $840 billion as Big Tech and Masayoshi Son's SoftBank piled into the $110 billion blockbuster round, signaling the AI investment race is alive and well despite recent fears of a valuation bubble.  The funding round - one of the largest private capital raises on record - with various strings and conditions attached that come in phases, includes a $30 billion investment from SoftBank, $30 billion from Nvidia, and $50 billion from