Jared AI Hub https://jaredai-website.vercel.app//blog Field notes on AI engineering, machine learning systems, and the software built around them. en-us jared_chung@hotmail.com (Jared Chung) jared_chung@hotmail.com (Jared Chung) Thu, 30 Apr 2026 00:00:00 GMT https://jaredai-website.vercel.app//blog/2026-04-30-llm-routing-fallback-contracts LLM Routing and Fallback: Preserve the Contract, Measure the Tradeoff https://jaredai-website.vercel.app//blog/2026-04-30-llm-routing-fallback-contracts Build model routing and fallback policies that preserve application contracts while measuring quality, latency, and total cost. Thu, 30 Apr 2026 00:00:00 GMT jared_chung@hotmail.com (Jared Chung) llmopenaiai-engineeringevaluationreliabilityoptimization