Sources: SoftBank is in talks to invest up to $30B more in OpenAI; SoftBank is already one of OpenAI's largest shareholders after investing $22.5B in December news wsj.com

Kate Clark / Wall Street Journal: Sources: SoftBank is in talks to invest up to $30B more in OpenAI; SoftBank is already one of OpenAI's largest shareholders after investing $22.5B in December  —  The Japanese conglomerate is exploring further investment as part of the startup's efforts to raise up to $100 billion