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Conglomerate (Japan) · Hybrid

SoftBank

Telecom/investment group building its own Japanese LLMs (Sarashina) plus partner models; major AI-infra investor.

Foundation proximity: Native (own / self-hosted weights)

Foundational models & how they consume them

Primaryown ML· self-hosted · Native (own / self-hosted weights)
Secondarypartner LLM· partners · Cloud-hosted (Bedrock/Vertex/Azure)

Cloud & datastore

Hybridown

Compliance

ISO 27001

Others that build on proprietary / self-built models

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Explore

Native (own / self-hosted weights) →More on Hybrid →

FAQ

Does SoftBank use a foundational AI model?
SoftBank uses own ML, partner LLM (Native (own / self-hosted weights)).
What cloud does SoftBank run on?
SoftBank runs on Hybrid.
What database does SoftBank use?
SoftBank uses own.
How close does SoftBank run to the foundational model?
SoftBank is Native (own / self-hosted weights) — close to the metal, so cheaper tokens and more control over outputs.

Sources

softbank.jp ↗

Also on the map

proprietary / self-built modelsmiddleware / wrappers

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Architecture inferred from public sources · confidence low · verify before betting on a detail.