Perplexity Reliability Patterns Overview Production reliability patterns for Perplexity Sonar API. Perplexity performs live web searches per request, making response times inherently variable. The key reliability challenges: search can stall, citations can break, and model tiers have different availability. Prerequisites - Perplexity API key configured - Cache layer (Redis or in-memory) - Understanding of search latency variability Instructions Step 1: Model Tier Fallback Step 2: Circuit Breaker Step 3: Streaming with Timeout Protection Step 4: Cache as Reliability Layer Step 5: Citation URL…