Fraud-prevention AI demos dazzle, then meet reality - the bank's wire, ACH, card, and instant-rail data live in separate systems. A model that cannot see the whole customer cannot catch a fraudster who moves across all of them.
An $8M deal chopped into 16 payments because one bank used FedNow. With TCH-RTP at a $10M limit and FedNow at $500K, transaction size is quietly deciding which rail a corporate treasurer can use.
Most banks modernize core-first and treat compliance as the finish line. With Fedwire going ISO 20022-native in July 2025, that order is exactly backwards - compliance is the foundation, not the finish.
A build note from a RAG document system tested on real content. The retrieval was the easy part; the document lifecycle - incremental add/delete and domain separation - was the real work.
The headlines say XRP and RLUSD will replace SWIFT. The likelier path is evolution, not revolution - a hybrid book where each rail earns the job it is actually good at.
The AI opportunity in banking is not another chat window. It is a decision layer that chooses the right payment path before money moves.