A router selects a specialist, tool, or path from evidence about the request and declared capability. It needs a fallback when no option is suitable or confidence is low.

Routers Match Requests to Capabilities

A circuit breaker stops repeated calls to an unhealthy dependency, tests recovery after a cooldown, and routes work to fallback or degradation. It protects both the caller and dependency.

Circuit Breakers Prevent Cascading Failure

In this situation—sending a question to math, writing, safety, or human support—which choice best applies “Routers Match Requests to Capabilities”?

Different nodes may need different context, reasoning, modality, latency, or privacy properties. A model router uses task evidence and fallback policy rather than a single default everywhere.

Model Routing Matches Capability, Risk, and Cost

A supervisor decomposes work, delegates, checks results, and decides next actions. It simplifies governance but can become a bottleneck and single point of failure.

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