Tool profile

vllm-project/semantic-router

github.com

An open, programmable decision layer that routes each LLM call to the best model and compute backend.

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PublishedOct 17, 2026
PricingOpen source

What it does

vllm-project/semantic-router

github.com

vLLM Semantic Router gives agent harnesses a single API for many models, selecting or combining backends per call based on your policy for quality, latency, cost and location. It is aimed at teams running LLM agents across local, private and cloud compute who want consistent routing and guardrails. It is written in Go and offered as an installable open project with documentation and an online playground.

PricingOpen source
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githubopen-sourcellmai-gatewaypytorchkubernetesinferenceguardrailsllmroutermixture-of-models

FAQ

Frequently asked questions

What is vllm-project/semantic-router?
vLLM Semantic Router gives agent harnesses a single API for many models, selecting or combining backends per call based on your policy for quality, latency, cost and location. It is aimed at teams running LLM agents across local, private and cloud compute who want consistent routing and guardrails. It is written in Go and offered as an installable open project with documentation and an online playground.
How much does vllm-project/semantic-router cost?
vllm-project/semantic-router uses a Open source pricing model. Check the official website for current plans.
What is vllm-project/semantic-router used for?
vllm-project/semantic-router is listed on TolsAI under: Open Source.
Where can I use vllm-project/semantic-router?
vllm-project/semantic-router is available on its official website, github.com.

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