SoftBank Corp.

Operates the CHIE series of AI computing clusters, used internally by its SB Intuitions subsidiary to train the Sarashina Japanese-language model family before offering capacity as commercial GPU cloud.

Systems this company appears in

Systems: 2
Aggregate Rmax: 0.0 GFlop/s
Aggregate power: 0 kW
First appearance: 2024-06
Most recent: 2025-04-15
Concentration: -

Aggregate Rmax is the sum of the systems this company supplies any part of. It is not revenue and not attributable share: an integrator and a memory vendor in the same machine both count its full FLOPS here. Attribution weighted by role is Phase 4.

Role breakdown

Role	Systems	Rmax in those systems
Integrator	2	0.0 GFlop/s

Appearances

System	Supplied as	Shipped under	Rmax	Rank
SoftBank Tomakomai AI Data Center Japan ·	Integrator	SoftBank Corp.	-	unranked
SoftBank Sakai AI Data Center Japan ·	Integrator	SoftBank Corp.	-	unranked

AI datacenters operated

System	Status	Accelerators	Stated power (MW)
CHIE-2	operational	-	-
CHIE-3	operational	-	-
CHIE-4	operational	4,000	-
SoftBank Tomakomai AI Data Center	under construction	-	300
SoftBank Sakai AI Data Center	planned	-	150

Figures come from the AI datacenter metrics; blank means none recorded.

Compute deals

Date	Role	Counterparty	Type	MW	Value ($bn)	Source
2025-03-03	Buyer	OpenAI	Joint venture	-	-	softbank.jp w.media

Headline values are as announced and are not additive. See all compute deals.

Sites operated

Site	Location	Cooling	Commissioned
SoftBank Corp. (undisclosed site)	Japan	-	2024
Tomakomai Data Center Campus	Tomakomai, Hokkaido, Japan	-	-
SoftBank Sakai Plant Site	Sakai, Osaka, Japan	-	-