STORY: SoftBank could be ramping up its bet on OpenAI.The Japanese firm is in talks to pour as much as $30 billion more into the ChatGPT owner.A person familiar with the matter said that the money would be part of a funding round that could raise up to $100 billion, valuing OpenAI at about $830 billion.CEO Masayoshi Son has made what he calls an “all‑in” bet on OpenAI as it seeks to improve its position in the artificial intelligence race.In December, the company said it had completed a $41 billion investment, giving it an 11% stake.OpenAI is facing rising costs to train and run its AI models as the race against Google intensifies.SoftBank declined to comment, though its shares were up 3.5% in Tokyo morning trade.Reuters reported last month that Son had scrambled to gather funds for the earlier investment, slowing dealmaking at the company’s Vision Fund.Both OpenAI and SoftBank are backing Stargate, a $500 billion initiative to build AI data centers for training and inference that executives say is key to the U.S. government’s ambitions to keep ahead of China in AI.