Why it matters
Canary is progressive LLM rollout. Understanding shapes practice.
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The architecture
Feature flag / mesh routes small %.
Monitor: latency + quality + cost.
Ramp or rollback.
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How it works end to end
Feature flags: LaunchDarkly, GrowthBook.
Service mesh: Istio, Linkerd.
Argo Rollouts for K8s.
Auto-rollback on SLO breach.