SoftBank Group is in talks to invest up to $30 billion more in OpenAI, according to people familiar with the matter, adding to the Japanese conglomerate’s already large stake in the startup. The ChatGPT maker is seeking up to $100 billion in new capital from investors, a round that could value it at as much as $830 billion, if it succeeds in raising the full amount, The Wall Street Journal previously reported. The deal talks are ongoing and terms could still change. SoftBank Group shares closed 3.7% higher in Tokyo trading Wednesday after the Journal’s report on the latest talks over OpenAI. SoftBank is already one of OpenAI’s largest shareholders with a stake that grew to 11% in December, when it invested $22.5 billion. In a statement at the time, SoftBank Chairman Masayoshi Son said the firm was “deeply aligned with OpenAI’s vision.”

Full exclusive : SoftBank is in talks to invest up to $30 billion more in OpenAI; SoftBank is already one of its largest shareholders after investing $22.5 billion in December 2025.