What are the hardware requirements for Switchboard Router 4B?

Switchboard Router 4B requires approximately 8.1 GB of VRAM and supports a context window of 256K tokens. Quantized variants may run on less VRAM; see the Quantized Models section on this page.

Who developed Switchboard Router 4B and how large is it?

Switchboard Router 4B is developed by switchboardllm, a model with 4b parameters. The model is published as open weights on Hugging Face and indexed on LLM Explorer with full benchmark history.

Where can I download or evaluate Switchboard Router 4B?

Switchboard Router 4B is hosted on Hugging Face and linked from this page. LLM Explorer also lists quantized variants and similar alternatives if available.

Switchboard Router 4B by switchboardllm — VRAM 8.1GB, 256K context

Name: Switchboard Router 4B
Author: switchboardllm

Switchboard Router 4B is an open-source language model by switchboardllm. Features: 4b LLM, VRAM: 8.1GB, Context: 256K, License: apache-2.0, Instruction-Based, LLM Explorer Score: 0.29.

Base model:finetune:qwen/qwen3... Base model:qwen/qwen3-4b-instr... Conversational Cost-optimization Dataset:routellm/gpt4 dataset En Endpoints compatible Instruct Llm-routing Qwen3 Region:us Router Safetensors Sharded Switchboard Tensorflow

Model Card on HF 🤗: https://huggingface.co/switchboardllm/switchboard-router-4b

Switchboard Router 4B Parameters and Internals

LLM Name	Switchboard Router 4B
Repository 🤗	https://huggingface.co/switchboardllm/switchboard-router-4b
Base Model(s)	Qwen3 4B Instruct 2507 Qwen/Qwen3-4B-Instruct-2507
Model Size	4b
Required VRAM	8.1 GB
Updated	2026-10-16
Maintainer	switchboardllm
Model Type	qwen3
Instruction-Based	Yes
Model Files	5.0 GB: 1-of-2 3.1 GB: 2-of-2
Supported Languages	en
Model Architecture	Qwen3ForCausalLM
License	apache-2.0
Context Length	262144
Model Max Length	262144
Transformers Version	4.53.1
Tokenizer Class	Qwen2Tokenizer
Padding Token	<\|endoftext\|>
Vocabulary Size	151936
Torch Data Type	bfloat16
Errors	replace

Rank the Switchboard Router 4B capabilities

Have you tried this model? Rate its performance — this feedback helps the ML community find the right model for their needs.

Instruction Following and Task Automation
Factuality and Completeness of Knowledge
Censorship and Alignment
Data Analysis and Insight Generation
Text Generation
Text Summarization and Feature Extraction
Code Generation
Multi-Language Support and Translation

Best Alternatives to Switchboard Router 4B

Best Alternatives	Context / RAM	Downloads	Likes
Dwight 4B	256K / 8.1 GB	374	10
Qwen3 4B Instruct 2507	256K / 8.1 GB	3109972	911
FastContext 1.0 4B SFT	256K / 8.1 GB	5735	357
SRA RiskGate 4B	256K / 8 GB	2662	1
Qwen3 4B Instruct 2507 FP8	256K / 5.2 GB	1100744	78
FastContext 1.0 4B RL	256K / 8.1 GB	4559	61
Mgi Assistant V1 Qwen3 4B	256K / 8.1 GB	669	1
Fable Traces	256K / 8.1 GB	100	210
Jamjuri EDGE Preview 100	256K / 8 GB	529	1
Voho Saudi Chat 4B	256K / 8 GB	468	1

Note: green Score (e.g. "73.2") means that the model is better than switchboardllm/switchboard-router-4b.