SoftBank completes final investment in OpenAI, full $30 billion commitment secured

On October 1, 2026, SoftBank Group announced it had finalized its third and final investment in OpenAI, injecting $10 billion through the SoftBank Vision Fund 2. This brings the total amount committed by SoftBank to OpenAI to $30 billion, with the full amount now fully funded. The investment is expected to grant SoftBank approximately 13% ownership in the AI research lab. The funds were sourced from a bond issuance, which is described as the largest high-yield corporate bond offering globally. OpenAI, which has seen its valuation rise rapidly, is currently seeking additional funding, with reports indicating it is looking for at least $30 billion in new capital. SoftBank’s investment is seen as both an opportunity and a risk, as it supports the company’s AI strategy but also increases its reliance on credit markets and the performance of a single capital-intensive sector. According to Reuters, the bond issuance highlights the scale of SoftBank’s financial commitment to OpenAI, while Bloomberg notes the AI lab’s ongoing efforts to secure further investment. The move underscores the growing interest in AI technology and the significant stakes involved in its development.