What are the hardware requirements for Qwen3 4B GRPO SFT?

Qwen3 4B GRPO SFT requires approximately 8.1 GB of VRAM and supports a context window of 32K tokens. Quantized variants may run on less VRAM; see the Quantized Models section on this page.

Who developed Qwen3 4B GRPO SFT and how large is it?

Qwen3 4B GRPO SFT is developed by Chengheng, 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 GRPO SFT?

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

Qwen3 4B GRPO SFT by Chengheng — VRAM 8.1GB, 32K context

Name: Qwen3 4B GRPO SFT
Author: Chengheng

Qwen3 4B GRPO SFT is an open-source language model by Chengheng. Features: 4b LLM, VRAM: 8.1GB, Context: 32K, License: apache-2.0, LLM Explorer Score: 0.18.

Base model:chengheng/qwen3-4b-... Base model:finetune:chengheng/... Conversational En Endpoints compatible Qwen3 Region:us Safetensors Sft Sharded Tensorflow Trl Unsloth

Model Card on HF 🤗: https://huggingface.co/Chengheng/qwen3-4b-GRPO-SFT

Qwen3 4B GRPO SFT Parameters and Internals

LLM Name	Qwen3 4B GRPO SFT
Repository 🤗	https://huggingface.co/Chengheng/qwen3-4b-GRPO-SFT
Base Model(s)	Chengheng/qwen3-4b-GPRO-600 Chengheng/qwen3-4b-GPRO-600
Model Size	4b
Required VRAM	8.1 GB
Updated	2026-09-20
Maintainer	Chengheng
Model Type	qwen3
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	32768
Model Max Length	32768
Transformers Version	4.51.3
Tokenizer Class	Qwen2Tokenizer
Padding Token	<\|vision_pad\|>
Vocabulary Size	151936
Torch Data Type	bfloat16
Errors	replace

Rank the Qwen3 4B GRPO SFT capabilities

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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 GRPO SFT

Best Alternatives	Context / RAM	Downloads	Likes
Qwen3 4B Instruct 2507	256K / 8.1 GB	3109972	911
GRPO 4 70	256K / 8.1 GB	14	0
FastContext 1.0 4B SFT	256K / 8.1 GB	5735	357
...2.5 Flash Lite Preview Distill	256K / 8.1 GB	31	1
Lightning 4B	256K / 8.1 GB	13	6
Fable Traces	256K / 8.1 GB	342	210
Qwen3 4B Thinking 2507	256K / 8.1 GB	291023	606
FastContext 1.0 4B RL	256K / 8.1 GB	4559	61
Qwen3 4B Cuad Extractor	256K / 8.1 GB	322	1
Checkpoint 8000	256K / 8.1 GB	1453	0

Note: green Score (e.g. "73.2") means that the model is better than Chengheng/qwen3-4b-GRPO-SFT.