◆ Gentoo Logic · Modeling Warehouse

Architecture comparison

Adyen vs PayPal

No shared foundational model — different bets.

Adyen

FinTech

Proximity
Off the LLM map (in-house non-LLM ML)
Models
—
Cloud · datastore
On-PremPostgreSQL
Compliance
PCI DSS Level 1SOC 2ISO 27001
Architecture

Unusually for its scale, runs its own data centers (not a hyperscaler) on a single Java platform over PostgreSQL for full control of the payment path. RevenueProtect fraud scoring is in-house ML.

PayPal

FinTech

Proximity
Off the LLM map (in-house non-LLM ML)
Models
—
Cloud · datastore
HybridOracleown
Compliance
SOC 2PCI DSS
Architecture

Massive in-house fraud/risk ML on its own infrastructure; off the LLM map at the core.

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