What are the hardware requirements for Qwen3.5 4B?

Qwen3.5 4B requires approximately 9.3 GB of VRAM. Quantized variants may run on less VRAM; see the Quantized Models section on this page.

Who developed Qwen3.5 4B and how large is it?

Qwen3.5 4B is developed by unsloth, 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 Qwen3.5 4B?

Qwen3.5 4B is hosted on Hugging Face and linked from this page. LLM Explorer also lists quantized variants and similar alternatives if available.

Qwen3.5 4B by unsloth — VRAM 9.3GB

Name: Qwen3.5 4B
Author: unsloth

Qwen3.5 4B is an open-source language model by unsloth. Features: 4b LLM, VRAM: 9.3GB, License: apache-2.0, LLM Explorer Score: 0.32.

Base model:finetune:qwen/qwen3... Base model:qwen/qwen3.5-4b Conversational Endpoints compatible Image-text-to-text Qwen3 5 Region:us Safetensors Sharded Tensorflow Unsloth

Model Card on HF 🤗: https://huggingface.co/unsloth/Qwen3.5-4B

Qwen3.5 4B Parameters and Internals

LLM Name	Qwen3.5 4B
Repository 🤗	https://huggingface.co/unsloth/Qwen3.5-4B
Base Model(s)	Qwen/Qwen3.5-4B Qwen/Qwen3.5-4B
Model Size	4b
Required VRAM	9.3 GB
Updated	2026-08-09
Maintainer	unsloth
Model Type	qwen3_5
Model Files	5.3 GB: 1-of-2 4.0 GB: 2-of-2
Model Architecture	Qwen3_5ForConditionalGeneration
License	apache-2.0
Model Max Length	262144
Transformers Version	4.57.0.dev0
Tokenizer Class	Qwen2Tokenizer
Padding Token	<\|vision_pad\|>
Errors	replace

Rank the Qwen3.5 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 Qwen3.5 4B

Best Alternatives	Context / RAM	Downloads	Likes
Qwen3.5 4B	0K / 9.3 GB	6575502	801
Agents A1 4B	0K / 9.1 GB	177578	72
NuExtract3	0K / 0.2 GB	441570	324
Fara1.5 4B	0K / 9.1 GB	4934	39
Qwen3.5 4B Base	0K / 9.3 GB	227814	79
DeepSeek V4 Pro Qwen3.5 4B	0K / 9.3 GB	3476	9
JOSIE 2 4B Preview	0K / 9.3 GB	733	20
Mephisto 4B 0725	0K / 8.6 GB	3001	5
JOSIE 2 4B OSS	0K / 9.3 GB	325	7
Mephisto 4B V2	0K / 8.6 GB	301	2

Note: green Score (e.g. "73.2") means that the model is better than unsloth/Qwen3.5-4B.