#litellm

LLM Gateway-level semantic caching strategy and implementation options comparison (GPTCache, Redis Semantic Cache, Portkey, Helicone, Bifrost+Redis)

Complexity-based automatic model routing — comparison of LLM Classifier, LiteLLM, and vLLM Semantic Router approaches, RouteLLM research reference, and cost savings

kgateway + Bifrost/LiteLLM 2-Tier architecture with Cascade Routing, Semantic Router, and Hybrid Routing design patterns

LLM Gateway-level multi-tenancy strategy — LiteLLM virtual key hierarchical model vs Kong Consumer policy comparison, budget enforcement, 3-tier tenant isolation (gateway, data, observability)

LLM platform FinOps methodology — token metering, showback/chargeback strategies, agentic cost models, budget policies, and gateway integration

An unexecuted plan to compare runtime hosting, model serving and gateways under controlled quality, isolation, performance and cost requirements