SoftBank Group CEO Masayoshi Son on Monday said he has agreed with OpenAI CEO Sam Altman to set up a joint venture in Japan ...

The deal, if it were to go through, would make the Japanese tech investment fund the largest outside stakeholder in OpenAI, overtaking Microsoft.

SoftBank is in talks to invest up to $25 billion in ChatGPT owner OpenAI, according to a person familiar with the matter, as ...