SoftBank Group plans to establish and list an artificial-intelligence and robotics company called Roze in the U.S., potentially raising capital to propel founder Masayoshi Son's growing bets on AI.

The Japanese investment firm aims to create and float such a vehicle as soon as this year, though the timing on that could slip to 2027, people familiar with the matter said, asking to remain anonymous to discuss confidential plans. SoftBank representatives declined to comment on the move, which the Financial Times earlier reported could value Roze at $100 billion. The company's shares swung between gains and losses in Tokyo.

Son's envisioned spinoff would run up against growing concerns about the sustainability of a historic data center buildout led by the likes of Meta Platforms and Amazon. SoftBank has placed a giant bet on OpenAI in particular, while trying to mold Arm Holdings into a potential competitor to Nvidia.