Building an AI application is not only about choosing a powerful model. Once a product uses several providers, teams also need to think about routing, outages, cost limits, privacy, and monitoring.
A control layer can help organize these responsibilities in one place. It can route requests according to the task, switch providers when necessary, apply budget rules, and improve visibility into latency, errors, and usage.
This approach is especially useful for autonomous workflows that may generate many model calls during a single task.
The nRouter About page explains how a managed LLM gateway can support multi-model applications with smart routing, guardrails, budget enforcement, PII redaction, failover, and spend attribution:
https://nrouter.ai/about
What is the biggest challenge you face when managing AI applications in production?
Disclosure: I am affiliated with nRouter.