{"id":"vllm-project-semantic-router","name":"semantic-router","af_score":42.2,"security_score":41.0,"reliability_score":30.0,"what_it_does":"Semantic Router (vLLM Semantic Router) provides a system-level routing layer for mixture-of-models by classifying or scoring incoming requests/contexts and dispatching them to appropriate models or pipelines.","best_when":"You want to integrate routing logic into an LLM inference stack (notably vLLM-based) and can deploy/manage the router as part of your infrastructure.","avoid_when":"You only need a simple, hosted SaaS API with minimal deployment/ops and no integration work.","last_evaluated":"2026-03-29T18:03:42.428381+00:00","has_mcp":false,"has_api":false,"auth_methods":[],"has_free_tier":false,"known_gotchas":["No explicit, machine-consumable API contract (REST/OpenAPI/SDK) is shown in the provided content; agent integration likely depends on internal libraries and your own wiring into vLLM.","Playground credentials are shown for the hosted demo; do not assume these are production credentials or that the same auth applies to deployment."],"error_quality":0.0}