What are the hardware requirements for Qwen3 4B MLX Bf16?

Qwen3 4B MLX Bf16 requires approximately 8 GB of VRAM and supports a context window of 40K tokens. Quantized variants may run on less VRAM; see the Quantized Models section on this page.

Who developed Qwen3 4B MLX Bf16 and how large is it?

Qwen3 4B MLX Bf16 is developed by Qwen, 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 4B MLX Bf16?

Qwen3 4B MLX Bf16 is hosted on Hugging Face and linked from this page. LLM Explorer also lists quantized variants and similar alternatives if available.

Qwen3 4B MLX Bf16 by Qwen — VRAM 8GB, 40K context

Name: Qwen3 4B MLX Bf16
Author: Qwen

Qwen3 4B MLX Bf16 is an open-source language model by Qwen. Features: 4b LLM, VRAM: 8GB, Context: 40K, License: apache-2.0, LLM Explorer Score: 0.19.

Arxiv:2309.00071 Arxiv:2505.09388 Conversational Mlx Qwen3 Region:us Safetensors Sharded Tensorflow

Model Card on HF 🤗: https://huggingface.co/Qwen/Qwen3-4B-MLX-bf16

Qwen3 4B MLX Bf16 Parameters and Internals

LLM Name	Qwen3 4B MLX Bf16
Repository 🤗	https://huggingface.co/Qwen/Qwen3-4B-MLX-bf16
Model Size	4b
Required VRAM	8 GB
Updated	2026-08-07
Maintainer	Qwen
Model Type	qwen3
Model Files	5.3 GB: 1-of-2 2.7 GB: 2-of-2
Model Architecture	Qwen3ForCausalLM
License	apache-2.0
Context Length	40960
Model Max Length	40960
Transformers Version	4.51.0
Tokenizer Class	Qwen2Tokenizer
Padding Token	<\|endoftext\|>
Vocabulary Size	151936
Torch Data Type	bfloat16
Errors	replace

Rank the Qwen3 4B MLX Bf16 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 4B MLX Bf16

Best Alternatives	Context / RAM	Downloads	Likes
FastContext 1.0 4B SFT	256K / 8.1 GB	5735	357
GRPO 4 70	256K / 8.1 GB	12	0
Qwen3 4B Instruct 2507	256K / 8.1 GB	3109972	911
Fable Traces	256K / 8.1 GB	436	210
Lightning 4B	256K / 8.1 GB	13	6
FastContext 1.0 4B RL	256K / 8.1 GB	4559	61
...PT Gpt5.1 Thinking Safetensors	256K / 8.1 GB	116	2
Qwen3 4B Thinking 2507	256K / 8.1 GB	291023	606
...pt Full Qwen3 4b Instruct 2507	256K / 8 GB	365	1
Qwen3 4B Instruct 2507 FP8	256K / 5.2 GB	1100744	78

Note: green Score (e.g. "73.2") means that the model is better than Qwen/Qwen3-4B-MLX-bf16.