vLLM semantic model selector

vLLM's modelselection module uses ML algorithms (KNN, KMeans, SVM, MLP) to route queries to most appropriate LLM based on characteristics

AA clean typed decision (yes/no, a pick from a list, or a level on a scale) that is concrete, repeats routinely, and has meaningful value.4.28

Key facts

Vertical
Software & tech
Function
Agents & dev
Status
Seen in the wild
Volume
high
Value
meaningful
Risk
moderate
Evidence
described plan
Flags
None

Source: https://docsearch.algolia.com/mcp/docs/repo/vllm-project/semantic-router

Build this with a classifier

Define a typed decision with a bounded answer, then evaluate it on examples.

{
  "decision_type": "choice",
  "question": "Does this input match the decision in “vLLM semantic model selector”?",
  "input": "<input to classify>",
  "output": "one label from a fixed list"
}

Related use cases

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