---
title: Switchboard
emoji: 🔀
colorFrom: yellow
colorTo: red
sdk: static
app_file: index.html
pinned: true
license: apache-2.0
short_description: A 0.5B router that picks the cheapest model for each prompt
models:
  - switchboardllm/switchboard-router-0.5b-ONNX
  - switchboardllm/switchboard-router-0.5b
  - switchboardllm/switchboard-router-0.5b-GGUF
datasets:
  - routellm/gpt4_dataset
tags:
  - router
  - llm-routing
  - transformers.js
  - webgpu
---

# Switchboard demo

Paste a prompt and see which model tier Switchboard picks: small, mid or frontier. The router ([switchboard-router-0.5b-ONNX](https://huggingface.co/switchboardllm/switchboard-router-0.5b-ONNX)) runs in your browser with Transformers.js, so prompts never leave your device. The first route downloads the model once (660 MB).

Model card and results: [switchboardllm/switchboard-router-0.5b](https://huggingface.co/switchboardllm/switchboard-router-0.5b)