Building Fault-Tolerant AI Systems with Multi-Provider Failover

As AI APIs become critical infrastructure for many applications, relying on a single provider creates a single point of failure that can result in significant downtime and revenue loss. This article demonstrates how implementing a multi-provider router with circuit breaker patterns and intelligent failover logic can maintain service reliability even during provider outages. The approach represents a crucial shift toward building production-grade AI systems that prioritize availability alongside performance.