OpenAI is in early talks to raise up to $40 billion in a funding round that would value the ChatGPT maker as high as $300 billion, according to people familiar with the matter.SoftBank would lead the round and is in discussions to invest between $15 billion and $25 billion.

SoftBank is in talks to invest in OpenAI, potentially deepening the relationship between the two companies that are already planning an artificial-intelligence infrastructure initiative.

SoftBank is in talks to invest up to $25 billion in ChatGPT owner OpenAI, according to a person familiar with the matter, as the Japanese conglomerate continues to expand into the sector.