SoftBank Invests $64.6 Billion in OpenAI AI Infrastructure

SoftBank Group has invested a cumulative $64.6 billion in OpenAI, acquiring approximately 13 percent ownership of the AI company. This investment creates a closed-loop financial structure where OpenAI serves as an equity asset, a borrowing reference, and the primary customer for SoftBank's AI infrastructure.

As part of the arrangement, OpenAI signed 20-year leases for SoftBank-backed data centers in Texas and Ohio. This includes an eight-gigawatt complex at the PORTS-Pike campus in Ohio. To support these developments, Nvidia invested $1.5 billion in SB Energy and provided credit support and residual-value guarantees of up to $105 billion for OpenAI's lease obligations.

To fund further expansion, SoftBank raised $10 billion through a loan secured by a cash collateral account. However, the loan agreement includes safeguards that could trigger mandatory repayments if OpenAI's share value declines significantly. While the strategy leverages OpenAI's growth to fund broader AI expansion, it exposes SoftBank to risks regarding customer concentration and valuation volatility.