LLM Gateway & Routing · Vendor file

LiteLLM

Open-source LLM proxy for unified API access across 100+ model providers

Categories LiteLLM serves

The B4 Index places LiteLLM in 2 categories. Each category page lays out the build-versus-buy considerations for that decision.

LLM Gateway & Routing Primary Open-source (free). Enterprise pricing custom.

Semantic Caching & LLM Cost-Routing Layer Open-source free; managed/hosted plans usage-based

LiteLLM compared

LiteLLM vs OpenRouter

The B4 Index scores every software category on two axes, strategic differentiation and AI feasibility, to classify it Build, Buy, Bridge, or Beware. Vendor facts here are independent of that call. See the full methodology.