SoftBank and OpenAI Announce AI Joint Venture in Japan
SoftBank Group has partnered with OpenAI to establish a joint venture in Japan, aimed at delivering artificial intelligence services to corporate clients. The venture, named SB OpenAI Japan, will be co-owned by OpenAI and a company created by SoftBank, alongside its domestic telecom arm. This collaboration signifies SoftBank’s deepening relationship with OpenAI, as the Japanese conglomerate commits to investing $3 billion annually to integrate OpenAI’s technology across its global operations.
SoftBank’s CEO Masayoshi Son announced the deal on Monday, further signaling his interest in increasing his exposure to OpenAI, which aligns with SoftBank’s broader investment strategy. In addition to this venture, SoftBank is considering investing between $15 billion and $25 billion in OpenAI, as well as committing another $15 billion to Stargate, a joint AI project between OpenAI, SoftBank, and Oracle.
The launch of Stargate last month marked a notable moment for Son, who was seen with former U.S. President Donald Trump, highlighting his continued presence in high-profile international business dealings. However, concerns have emerged with the rise of China’s DeepSeek, a company whose AI model is seen as a potential competitor to U.S. giants, adding uncertainty to the massive financial investments being funneled into the AI sector.
Despite these concerns, OpenAI’s CEO Sam Altman emphasized the increasing global demand for computational power, noting that “the world is going to just need so much compute.” The joint venture with SoftBank represents a strategic push to expand AI services and capabilities in Japan, an important move as AI technology continues to shape the future of global business.

