[SoftBank and OpenAI jointly launch joint venture SB OAI Japan, planning for 2026 IPO] BlockBeats news, November 5, SoftBank and OpenAI jointly launched the joint venture SB OAI Japan, planning to go public in 2026. Sam Altman stated that establishing a joint venture with SoftBank is an important step that will accelerate the vision of bringing advanced artificial intelligence to some of the world's most influential companies. (Jin10)