The model landscape and pricing tiers. Know the current provider lineup and where each sits on the cost-quality-latency spectrum. Anthropic: Opus 4 (≈$15/$75 per MTok, highest reasoning), Sonnet 4...

Set up a multi-model gateway. Configure LiteLLM to proxy requests across Claude, GPT-4o, and an open-source model. Define fallback chains. Set up rate limiting. Track per-model cost and latency. This...

"Walk me through how you'd design a multi-model architecture for a production application." Start with task analysis: what types of requests does the system handle? Classify by complexity (simple...