Not a model, but a system: how Svoi built a seven-layer architecture for a fintech bot

When an LLM gives a bank customer the wrong account balance or offers an outdated product, it is not a neural network error but a failure in one of the seven links in the system architecture. Svoi.ru broke down a real case: outdated knowledge, incorrect routing, and slow API response times are often more dangerous than the weakest model itself. In fintech, the weakest link always matters more than a strong neural network.