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Data center program / initiativeProgram record
SB OAI Japan Enterprise AI Program
JapanStatus Under Review
Capacity
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Lead participant
SB OAI Japan GK
Operator
Last updated
Aug 25, 2026
Most recent public record update
About SB OAI Japan Enterprise AI Program
SB OAI Japan Enterprise AI Program — 50:50 SoftBank/OpenAI enterprise-AI commercialization program; separate from any physical data center campus. SB OAI Japan Enterprise AI Program is in Japan, JP and is a program with active status. Participants include SB OAI Japan GK as operator. Development comprises Joint-venture agreement (completed), SB OAI Japan launch (operational). Key milestones include SoftBank and OpenAI agreed 50:50 Japan JV. (2025-02-03) and SB OAI Japan launched. (2025-11-05).
Capacity
Operating capacity—An operating IT-capacity figure has not been publicly disclosed.
No additional capacity claims are published.
Development
2 phases · 2 milestonesJoint-venture agreementAnnounced Or Preconstruction
50:50 program agreed February 2025.
SB OAI Japan launchOperational
Legal JV launched November 2025.
Feb 3, 2025
SoftBank and OpenAI agreed 50:50 Japan JV
CompletedNov 5, 2025
SB OAI Japan launched
CompletedInfrastructure
No public infrastructure records are attached.
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Facts & sources
Published claims and their source links.
Ownership50:50 OpenAI and SoftBank vehicleFact
50:50 OpenAI and SoftBank vehicle
Launch Date2025-11-05Actual
2025-11-05
Commercial Availability2,026Forecast
2,026
Softbank Openai Spend$3 billion per yearFact
$3 billion per year