SoftBank Group Corp., OpenAI, and Oracle Corp. are forming a $100 billion joint venture to fund artificial intelligence infrastructure, an effort unveiled with President Donald Trump aimed at speeding development of the emerging technology.

SoftBank, OpenAI, and Oracle are launching a $100 billion joint venture to enhance AI infrastructure, with plans to escalate investment to $500 billion. The initiative, supported by President Donald Trump,

Tesla Inc. CEO Elon Musk cast doubt Wednesday on the ambitious $500 billion Project Stargate, hours after its announcement, claiming lead investor SoftBank Group SFTBY -0.36% + Free Alerts SFTBF + Free Alerts has “well under $10B secured.”