Architecture comparison
FinTech
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.
FinTech
Stripe’s publicly documented infrastructure shows heavy AWS usage for observability and operations, plus a sharded/tiered storage design that Stripe built to scale data access and migrations. Public sources do not confirm a core production reliance on a foundational LLM; the available evidence points to a proprietary payments platform rather than an open model stack.