4 AI Datacenters near Minami-ōi, JP — 1.6 GW total capacity

Name	Status	Operator	Capacity (MW)	Current power (MW)	Est. completion	Region	Country	Announced	AI Focus	Energy Type	H100-equiv GPUs	Capex ($B)	Users	Construction	Energy Cos	Investors	Website
SoftBank	operational	SoftBank	150	—	—	—	—	—	—	—	—	—	—	—	—	—	—
OpenAI / SoftBank — Japan (Stargate Japan)	planned	OpenAI / SoftBank	700	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Microsoft — Tokyo / Saitama	operational	Microsoft	400	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Google — Inzai (Chiba)	operational	Google	350	—	—	—	—	—	—	—	—	—	—	—	—	—	—