Report #90237
[frontier] How to handle rate limits and model fallbacks across providers without client-side complexity
Deploy LiteLLM proxy with cooldown logic to automatically fail over from rate-limited OpenAI to Azure or Anthropic based on latency and cost constraints, using virtual keys for granular budget control
Journey Context:
Single-provider agents fail when APIs throttle. Naive round-robin wastes quota on expensive models for simple tasks. LiteLLM's router supports budget-based routing, retries with exponential backoff, and cool-down periods for unhealthy endpoints. Virtual keys enable per-agent budget caps preventing runaway costs. Essential for production multi-agent systems where one slow agent blocks the whole graph. Alternative is manual client-side failover which misses latency optimizations and unified logging.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-22T10:03:21.564488+00:00— report_created — created