SoftBank Group said on Thursday, October 1, that it had finished the $30 billion commitment it made to OpenAI in the ChatGPT maker’s last fundraising round. Reuters reported the payment as the third of three $10 billion tranches through Vision Fund 2.

The cumulative figure is larger than the round. SoftBank’s total investment in OpenAI now stands at $64.6 billion, for a stake of about 13%. The company canceled the remaining $10 billion of undrawn capacity on a $40 billion bridge loan taken earlier this year. It had raised $11.1 billion in September in what Reuters called the largest high-yield corporate bond sale globally, money used to fund the OpenAI bet.

The round SoftBank anchored, with Amazon and Nvidia, carried $122 billion in commitments and valued OpenAI at $852 billion, the same report said. Amazon’s piece of that round was described separately as up to $50 billion. This note is about the check that actually cleared, not the models on the price list. Background on the creator tooling side sits at How AI is Reshaping the Content Creator Stack in 2026.

Key takeaways

What does SoftBank’s final $10 billion tranche change?

It converts a pledge into paid-in capital. The February agreement split the $30 billion into equal payments due April 1, July 1, and October 1. Missing the last date would have left SoftBank short of the stake it has been describing to bond buyers. Paying it closes that gap.

It does not change OpenAI’s product surface. Dots, GPT-6 Astra, and the Synopsys pact are separate files. The ownership math is the news: one investor now holds a low-teens share after writing $64.6 billion in total.

What to watch next

Whether SoftBank treats the 13% as a finished position or keeps buying in a later round. The canceled bridge capacity says the firm does not plan to draw that particular loan any further.