What are the hardware requirements for GPT Oss 20B 4bit?

GPT Oss 20B 4bit requires approximately 13.8 GB of VRAM and supports a context window of 128K tokens. Quantized variants may run on less VRAM; see the Quantized Models section on this page.

Who developed GPT Oss 20B 4bit and how large is it?

GPT Oss 20B 4bit is developed by ppz1, a model with 20b 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 GPT Oss 20B 4bit?

GPT Oss 20B 4bit is hosted on Hugging Face and linked from this page. LLM Explorer also lists quantized variants and similar alternatives if available.

GPT Oss 20B 4bit by ppz1 — VRAM 13.8GB, 128K context

Name: GPT Oss 20B 4bit
Author: ppz1

GPT Oss 20B 4bit is an open-source language model by ppz1. Features: 20b LLM, VRAM: 13.8GB, Context: 128K, Quantized, LLM Explorer Score: 0.28.

Arxiv:1910.09700 4bit 8-bit Conversational Endpoints compatible Gpt oss Mxfp4 Quantized Region:us Safetensors Sharded Tensorflow

Model Card on HF 🤗: https://huggingface.co/ppz1/gpt-oss-20b-4bit

GPT Oss 20B 4bit Parameters and Internals

LLM Name	GPT Oss 20B 4bit
Repository 🤗	https://huggingface.co/ppz1/gpt-oss-20b-4bit
Model Size	20b
Required VRAM	13.8 GB
Updated	2026-09-02
Maintainer	ppz1
Model Type	gpt_oss
Model Files	4.8 GB: 1-of-3 4.8 GB: 2-of-3 4.2 GB: 3-of-3
Quantization Type	4bit
Model Architecture	GptOssForCausalLM
Context Length	131072
Model Max Length	131072
Transformers Version	5.15.1
Tokenizer Class	TokenizersBackend
Padding Token	<\|endoftext\|>
Vocabulary Size	201088

Rank the GPT Oss 20B 4bit 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 GPT Oss 20B 4bit

Best Alternatives	Context / RAM	Downloads	Likes
GPT Oss 20B MXFP4 Q8	128K / 12.1 GB	354421	79
GPT Oss 20B OptiQ 4bit	128K / 11.6 GB	1690	6
GPT Oss 20B Unsloth Bnb 4bit	128K / 12.6 GB	64914	38
...s 20B Ja Fin Thinking MLX 4bit	128K / 11.8 GB	126	1
...s 20B Ja Fin Thinking MLX 8bit	128K / 22.1 GB	102	1
GPT Oss 20B MLX 8bit	128K / 22.1 GB	2890	58
GPT Oss 20B MXFP4 Q4	128K / 11.2 GB	2178	16
GPT Oss 20B Bnb 4bit	128K / 40.8 GB	2402	14
GPT Oss Coder 20B	128K / 13.8 GB	13	13
GPT Oss 20B	128K / 13.8 GB	7983620	4849

Note: green Score (e.g. "73.2") means that the model is better than ppz1/gpt-oss-20b-4bit.