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Designing a multi-model AI router that doesn't fall over (cascade + circuit breaker)

This story is from 2026-09-29. It is preserved in the archive; the latest stories are on the live feed.

The moment you add a second AI model to your app, you inherit a new class of production bug: the cascade. One provider has a bad day, your retry logic melts, and a simple 503 turns into a user-facing outage. I learned this the hard way running agents that call Claude, GPT-4o, and DeepSeek. Here's t…

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  1. 2026-09-29 04:28 · DEV Community — AI
    Designing a multi-model AI router that doesn't fall over (cascade + circuit breaker)

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