LiteLLM vs RouterBase

One API key for hundreds of AI models from every major provider

SpecialistHosts high-performance open-weight models directly on dedicated serverless infrastructure, but does not route across external providers.

One OpenAI-compatible gateway for adaptive LLM routing, guardrails, and spend control

One OpenAI-compatible API key for 500+ AI models

One unified API for 100+ AI models, with insurance when output disappoints

One OpenAI-compatible key for discounted GPT, Claude and Gemini access

Offers advanced enterprise observability and guardrail tools, but lacks LiteLLM's lightweight self-hosted proxy simplicity.

One API gateway and LLM router for around 1,000 AI models

Free / Open-sourceOne OpenAI-compatible API to route, monitor and control 250+ LLM models

Free / Open-sourceOpen-source request routing with built-in evaluations, but has a smaller community and fewer pre-built provider connectors.

SpecialistOne API key, hundreds of AI models behind a single endpoint

SpecialistExcels at request caching, monitoring, and cost analytics, but functions primarily as a proxy monitor rather than a router.