SoftBank Group Corp. announced Tuesday the execution of a $10 billion follow-on investment — the second tranche — in OpenAI Group PBC through its SoftBank Vision Fund 2, bolstering the artificial intelligence company’s capacity expansion plans.
The investment closed on July 1, 2026 (Japan time), as part of a previously disclosed $30 billion follow-on commitment first announced in February. SoftBank funded the tranche with $10 billion borrowed under a bridge facility agreement entered in March. A third and final $10 billion tranche is scheduled for Oct. 1, 2026 (Japan time), subject to possible acceleration in the event of an OpenAI public listing.
This latest move brings SoftBank closer to completing its massive additional commitment to the U.S.-based AI pioneer. The investment supports OpenAI’s ongoing efforts to scale computing infrastructure and develop advanced AI technologies amid rapidly growing global demand.
Details from the Announcement
According to the official release, the second tranche amounts to approximately ¥1,627.3 billion, converted at an exchange rate of ¥162.73 per dollar. It follows the successful first tranche completed on April 1.
SoftBank emphasized that the follow-on investments build upon its existing stake in OpenAI, reflecting continued confidence in the company’s trajectory. The structure allows for methodical capital deployment while aligning with OpenAI’s long-term growth objectives in generative AI and related applications.
Strategic Significance
For SoftBank, the investment aligns with its vision of backing transformative technologies. Vision Fund 2 continues to play a central role in the conglomerate’s strategy to amplify innovation across borders, particularly in high-growth sectors like artificial intelligence that require substantial upfront capital for compute resources and model training. OpenAI, known for its ChatGPT platform and enterprise AI solutions, benefits from the infusion as it navigates the intense demands of AI infrastructure development. The funding is expected to enhance capacity and accelerate progress toward more powerful, efficient AI systems.
The announcement underscores the deepening ties between major international investors and leading AI developers. With operations spanning the U.S. and Asia, SoftBank’s involvement highlights cross-border capital flows fueling the global AI boom, especially in key innovation hubs like San Francisco and Tokyo.
Market watchers will monitor the final tranche and any potential OpenAI listing developments. This deal further cements SoftBank’s role as a significant player in the AI investment landscape.