Eliminating Frontier Model Risk: SmarterFI Technical Architecture Brief

Frontier models give community banks and credit unions new capabilities but raise risk committee questions: can the model invent a number, see customer identifiers, follow hidden instructions, retain or train on bank data, and leave an examinable record? This brief describes an architecture that confines the frontier model to a narrow governed role (reading, extracting and drafting with required citations) and places institutional risk in inspectable controls: identifier masking before any model call, deterministic calculation in versioned tested code, human approval of consequential actions, isolated U.S.-only per-institution environments with no-training commitments, and an append-only, exportable audit log. Each control carries a status label (Live, Built, Specified). Controls are mapped to SR 26-2 / OCC Bulletin 2026-13, the FFIEC IT Examination Handbook, GLBA, interagency third-party risk guidance, SOC 2 and business continuity expectations, and crosswalked to three 2026 community bank AI frameworks. Includes a risk committee checklist and FAQ.

Version 1.1 adds a citation and DOI line and clarifies that the SmarterFI platform runs only in SmarterFI's private cloud; only Data Mapping & Discovery can run in a bank's environment. The licence notice now matches CC BY 4.0.