From: <huggingface.co/mlx-community> Newsgroups: alt.freeweights.gpt-ossSubject: gpt-oss-20b-MXFP4-Q4 Date: 2026-11-15Commit: f356f27Signed: 2DC28CC7B26A283B ✓ Text generation model with 20.9B parameters. Safetensors weights, 11.2 GB in all. Published by mlx-community under Apache-2.0.
20.9B params 11.2 GB gpt-oss-20b-MXFP4-Q4 safetensors permissive Facts Params 20.9B Size 11.2 GB Formats safetensors Task text generation License Apache-2.0 permissive
fw
$ fw get mlx-community/gpt-oss-20b-MXFP4-Q4
# manifest sha256 0f6852e1da4f… · 11.2 GB · 11 files
$ fw verify ./gpt-oss-20b-MXFP4-Q4 mlx-community/gpt-oss-20b-MXFP4-Q4Hosted (signed) mlx-community/gpt-oss-20b-MXFP4-Q4 Last check: 2026-11-15 04:59 UTC
Get help: custom fine-tune or private deploy. We review your setup before we quote.
Quantized of gpt-oss-20b .
Works with
Runs with Ranked by fit to this model (safetensors), then by GitHub stars.
Show all 24 Fine-tune with Show all 29
Overview
Size 11.2 GB
Weights 11.2 GB (safetensors)
Parameters 20.9B
Formats safetensors
Task text generation
License Apache-2.0 (permissive)
Files 11, each with a sha256
Publisher mlx-community
Added 2026-11-15
Section alt.freeweights.gpt-oss Lineage
Original release from the publisher.
Base model: openai/gpt-oss-20b
Where these bytes come from
Publisher at the pinned commit →You
Sources are tried in order. A file counts only when its size and sha256 match the manifest. Sources are checked when you ask for them, not on a timer.
Sources
Badge Host Last check Result huggingface.co 2026-11-15 04:59 UTC passed
Model card From the publisher at commit
f356f27 . Shown as plain text with links; images open at the publisher.
This model mlx-community/gpt-oss-20b-MXFP4-Q4 was converted to MLX format from openai/gpt-oss-20b using mlx-lm version 0.27.0 .
Use with mlx#
from mlx_lm import load, generate
model, tokenizer = load("mlx-community/gpt-oss-20b-MXFP4-Q4")
prompt = "hello"
if tokenizer.chat_template is not None:
messages = [{"role": "user", "content": prompt}]
prompt = tokenizer.apply_chat_template(
messages, add_generation_prompt=True
)
response = generate(model, tokenizer, prompt=prompt, verbose=True) Files 11 files · 11.2 GB Weights 11.2 GB (safetensors). Sizes and sha256 from the signed manifest.
Hide all 11 files with their sha256 File Size sha256 .gitattributes 1.57 KB 34448b82c17d60fec9b65b1f093c115ddbaadc04beb1b0140b6bfed2e012a930 README.md 838 B b9cdaf33f7a1854bb49346c80d56fc8f4544155bfbcafdd0af40afa0a0fa5099 config.json 34.0 KB e8ec3c105ab83e913a75baf587de778083ada1af3fac68d807e75ff926240e38 generation_config.json 177 B f9970ada892d2d1f72e3ed0a6535ccebadd11897318794ca671d8c7014c957da model-00001-of-00003.safetensors 5.31 GB ec8571f6f8adba2d7d92a1f6029a69aecd18ab4e82404a306ceb063d9ae1362d model-00002-of-00003.safetensors 5.26 GB 9a32623d891d6f64694fdaaaeecf145d8796d17c238b9b99af953077d0f63837 model-00003-of-00003.safetensors 608 MB 3fb80743340b3dbeb649e50b5fd1b5f063e98c143759025284344988d8fa0a95 model.safetensors.index.json 67.0 KB 065001869dd5ffd332419a432127467191b1bb0fd5c463dd0dc51f1359728a27 special_tokens_map.json 440 B 8464cabd6eda239fe46ebf8ae63b46c417721784a961a022f6b59174a2cda0e2 tokenizer.json 27.9 MB 0614fe83cadab421296e664e1f48f4261fa8fef6e03e63bb75c20f38e37d07d3 tokenizer_config.json 21.7 KB 2d8386578f85ea1fa698e78c58b2d8503e8122d6b110b61f93d3995601b07d91
Versions Each time the pinned upstream commit or file list changed in this repo. Newest first.
Upstream commit Date Contents f356f27472 pinned now 2026-11-15 04:59 UTC 11 files · 11.2 GB
Use it fw
$ fw get mlx-community/gpt-oss-20b-MXFP4-Q4
# manifest sha256 0f6852e1da4f… · 11.2 GB · 11 files
$ fw verify ./gpt-oss-20b-MXFP4-Q4 mlx-community/gpt-oss-20b-MXFP4-Q4fw.py Checks the signature and every sha256, tries each source in order, resumes.
$ python3 fw.py get https://freeweights.allternit.com/manifests/mlx-community/gpt-oss-20b-MXFP4-Q4.json --dir ./gpt-oss-20b-MXFP4-Q4
$ python3 fw.py verify ./gpt-oss-20b-MXFP4-Q4 ./mlx-community__gpt-oss-20b-MXFP4-Q4.jsonhf The Hugging Face CLI with one setting. Same repo id.
$ HF_ENDPOINT =https://freeweights.allternit.com hf download mlx-community/gpt-oss-20b-MXFP4-Q4 --revision f356f2747216d7e98fee755df25987459fc19089 --local-dir ./gpt-oss-20b-MXFP4-Q4transformers Load the weights in Python.
import os
os.environ["HF_ENDPOINT" ] = "https://freeweights.allternit.com"
from transformers import AutoModelForCausalLM, AutoTokenizer
tok = AutoTokenizer.from_pretrained("mlx-community/gpt-oss-20b-MXFP4-Q4", revision="f356f2747216d7e98fee755df25987459fc19089")
model = AutoModelForCausalLM.from_pretrained("mlx-community/gpt-oss-20b-MXFP4-Q4", revision="f356f2747216d7e98fee755df25987459fc19089", device_map="auto")vLLM Serve an OpenAI-compatible API.
$ HF_ENDPOINT =https://freeweights.allternit.com vllm serve mlx-community/gpt-oss-20b-MXFP4-Q4 --revision f356f2747216d7e98fee755df25987459fc19089License Name Apache License 2.0 Id Apache-2.0 Class Permissive Redistribution yes Listing Hosted (signed) Decided License as declared by the publisher. No person read it. 2026-11-15 Text in README.md Text sha256 b9cdaf33f7a1854bb49346c80d56fc8f4544155bfbcafdd0af40afa0a0fa5099 Terms gate No extra terms beyond the license. Read the license text
Licenses are checked against the license table . A custom license passes only after a person reads it.
Provenance From: <huggingface.co/mlx-community> Newsgroups: alt.freeweights.gpt-ossSubject: gpt-oss-20b-MXFP4-Q4 Date: 2026-11-15Commit: f356f27Signed: 2DC28CC7B26A283B ✓ Upstream mlx-community/gpt-oss-20b-MXFP4-Q4 Pinned commit f356f2747216d7e98fee755df25987459fc19089 Manifest gpt-oss-20b-MXFP4-Q4.json · .minisig Manifest sha256 0f6852e1da4f49e39f63799cb90e3c6e92c6efd436d04e5d0774f581b74d5749 Signature minisign, Ed25519, key 2DC28CC7B26A283B Created 2026-11-15 04:59 UTC Generator freeweights-manifest/0.1.0 Takedowns None. How to verify
$ curl -O https://freeweights.allternit.com/manifests/mlx-community/gpt-oss-20b-MXFP4-Q4.json
$ curl -O https://freeweights.allternit.com/manifests/mlx-community/gpt-oss-20b-MXFP4-Q4.json.minisig
$ minisign -Vm gpt-oss-20b-MXFP4-Q4.json -P RWQ7KGqyx4zCLXtUFOqvfv8L3g+8fpKJ1FsuxPyOYMF+4KufbUxKq1Oq
$ shasum -a 256 <file> # compare with the Files tab A manifest whose signature fails must be rejected. A file whose size or sha256 does not match must be discarded. Verify a download
Model tree No model in the catalog names this one as its parent.
Get it
$ HF_ENDPOINT =https://freeweights.allternit.com hf download mlx-community/gpt-oss-20b-MXFP4-Q4Open in Freeweights Studio Pull, verify and run it in the Allternit app on Desktop, web or phone.
116.8B params 131 GB gpt-oss-120b safetensors permissive Facts Params 116.8B Size 131 GB Formats safetensors Task text generation License Apache-2.0 permissive flip From: <huggingface.co/unsloth> Subject: gpt-oss-120b 116.8B params 65.8 GB gpt-oss-120b-4bit safetensors permissive Facts Params 116.8B Size 65.8 GB Formats safetensors Task text generation License Apache-2.0 permissive flip From: <huggingface.co/mlx-community> Subject: gpt-oss-120b-4bit 116.8B params 234 GB gpt-oss-120b-BF16 safetensors permissive Facts Params 116.8B Size 234 GB Formats safetensors Task text generation License Apache-2.0 permissive flip From: <huggingface.co/unsloth> Subject: gpt-oss-120b-BF16 gpt-oss 63.4 GB gpt-oss-120b-GGUF gguf permissive Facts Params not stated Size 63.4 GB Formats gguf Task not tagged License Apache-2.0 permissive flip From: <huggingface.co/lmstudio-community> Subject: gpt-oss-120b-GGUF gpt-oss 1.01 TB gpt-oss-120b-GGUF gguf permissive Facts Params not stated Size 1.01 TB Formats gguf Task text generation License Apache-2.0 permissive flip From: <huggingface.co/unsloth> Subject: gpt-oss-120b-GGUF 116.8B params 124 GB gpt-oss-120b-MLX-8bit safetensors permissive Facts Params 116.8B Size 124 GB Formats safetensors Task text generation License Apache-2.0 permissive flip From: <huggingface.co/lmstudio-community> Subject: gpt-oss-120b-MLX-8bit
mlx-community <huggingface.co/mlx-community>Newsgroups: alt.freeweights.gpt-ossSubject: 
unsloth 
lmstudio-community