SoftBank Completes $30 Billion OpenAI Investment, Bringing Total Commitment to $64.6 Billion

October 5, 2026 -

Highlights

SoftBank completed the final $10 billion tranche of its $30 billion follow-on investment in OpenAI on October 1, 2026.
The Japanese investment group’s cumulative investment in OpenAI now stands at $64.6 billion, representing an ownership interest of approximately 13%.
The final tranche was funded using proceeds from foreign-currency-denominated senior notes issued following a September financing announcement.
SoftBank cancelled the remaining $10 billion of undrawn capacity under its $40 billion bridge facility after repaying outstanding borrowings.
The completed investment reinforces SoftBank’s financial commitment to OpenAI and its broader artificial intelligence strategy.

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