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HR · Hybrid

Workday

Runs Illuminate, its own ~800B-parameter LLM trained on HR/finance data from 10,500+ customers (800B transactions/yr) for privacy + enterprise fit; acquired Sana (2025) for custom AI agents.

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

Foundational models & how they consume them

PrimaryWorkday Illuminate LLM (own ~800B)· self-hosted · Native (own / self-hosted weights)

Cloud & datastore

HybridMySQLown

Compliance

SOC 2ISO 27001

Similar companies

BambooHRDeel
Head-to-head: Workday vs BambooHRWorkday vs Deel

Others that build on proprietary / self-built models

Abnormal SecurityAbridgeAdobeAI21 LabsAleph AlphaAmbience

Explore

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

FAQ

Does Workday use a foundational AI model?
Workday uses Workday Illuminate LLM (own ~800B) (Native (own / self-hosted weights)).
What cloud does Workday run on?
Workday runs on Hybrid.
What database does Workday use?
Workday uses MySQL, own.
How close does Workday run to the foundational model?
Workday is Native (own / self-hosted weights) — close to the metal, so cheaper tokens and more control over outputs.

Sources

workday.com ↗

Also on the map

proprietary / self-built models

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