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
HybridMySQLownCompliance
SOC 2ISO 27001Similar companies
BambooHRDeelOthers that build on proprietary / self-built models
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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
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