alt.freeweights.vision / mambaout_small_rw.sw_e450_in1k
From: timm <huggingface.co/timm>Newsgroups: alt.freeweights.visionSubject:

mambaout_small_rw.sw_e450_in1k

Date: 2026-11-15Commit: cffff4aSigned: 2DC28CC7B26A283B ✓

Image classification model with 48M parameters. Safetensors weights, 388 MB in all. Published by timm under Apache-2.0.

48M params388MBmambaout_small_rw.sw_e450_in1ksafetensorspermissive
FactsParams48MSize388 MBFormatssafetensorsTaskimage classificationLicenseApache-2.0From sourcepermissive
$ fw get timm/mambaout_small_rw.sw_e450_in1k
# manifest sha256 3675790d5644… · 388 MB · 5 files
$ fw verify ./mambaout_small_rw.sw_e450_in1k timm/mambaout_small_rw.sw_e450_in1k
From sourceHosted (signed)timm/mambaout_small_rw.sw_e450_in1kLast check: 2026-11-15 03:48 UTC

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Works with

Runs with

Ranked by fit to this model (safetensors), then by GitHub stars.

Overview

Size
388 MB
Weights
194 MB (safetensors)
Parameters
48M
Formats
safetensors
Task
image classification
License
Apache-2.0 (permissive)
Files
5, each with a sha256
Publisher
timm
Added
2026-11-15
Section
alt.freeweights.vision
Lineage

Original release from the publisher.

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From sourcehuggingface.co2026-11-15 03:48 UTCpassed

Model card

From the publisher at commit cffff4a. Shown as plain text with links; images open at the publisher.

Model card for mambaout_small_rw.sw_e450_in1k#

A MambaOut image classification model with timm specific architecture customizations. Trained on ImageNet-1k by Ross Wightman using Swin / ConvNeXt based recipe.

Model Details#

Model Usage#

Image Classification#
from urllib.request import urlopen
from PIL import Image
import timm

img = Image.open(urlopen(
    'https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/beignets-task-guide.png'
))

model = timm.create_model('mambaout_small_rw.sw_e450_in1k', pretrained=True)
model = model.eval()

# get model specific transforms (normalization, resize)
data_config = timm.data.resolve_model_data_config(model)
transforms = timm.data.create_transform(**data_config, is_training=False)

output = model(transforms(img).unsqueeze(0))  # unsqueeze single image into batch of 1

top5_probabilities, top5_class_indices = torch.topk(output.softmax(dim=1) * 100, k=5)
Feature Map Extraction#
from urllib.request import urlopen
from PIL import Image
import timm

img = Image.open(urlopen(
    'https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/beignets-task-guide.png'
))

model = timm.create_model(
    'mambaout_small_rw.sw_e450_in1k',
    pretrained=True,
    features_only=True,
)
model = model.eval()

# get model specific transforms (normalization, resize)
data_config = timm.data.resolve_model_data_config(model)
transforms = timm.data.create_transform(**data_config, is_training=False)

output = model(transforms(img).unsqueeze(0))  # unsqueeze single image into batch of 1

for o in output:
    # print shape of each feature map in output
    # e.g.:
    #  torch.Size([1, 56, 56, 96])
    #  torch.Size([1, 28, 28, 192])
    #  torch.Size([1, 14, 14, 384])
    #  torch.Size([1, 7, 7, 576])

    print(o.shape)
Image Embeddings#
from urllib.request import urlopen
from PIL import Image
import timm

img = Image.open(urlopen(
    'https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/beignets-task-guide.png'
))

model = timm.create_model(
    'mambaout_small_rw.sw_e450_in1k',
    pretrained=True,
    num_classes=0,  # remove classifier nn.Linear
)
model = model.eval()

# get model specific transforms (normalization, resize)
data_config = timm.data.resolve_model_data_config(model)
transforms = timm.data.create_transform(**data_config, is_training=False)

output = model(transforms(img).unsqueeze(0))  # output is (batch_size, num_features) shaped tensor

# or equivalently (without needing to set num_classes=0)

output = model.forward_features(transforms(img).unsqueeze(0))
# output is unpooled, a (1, 7, 7, 576) shaped tensor

output = model.forward_head(output, pre_logits=True)
# output is a (1, num_features) shaped tensor

Model Comparison#

By Top-1#
modelimg_sizetop1top5param_count
mambaout_base_plus_rw.sw_e150_r384_in12k_ft_in1k38487.50698.428101.66
mambaout_base_plus_rw.sw_e150_in12k_ft_in1k28886.91298.236101.66
mambaout_base_plus_rw.sw_e150_in12k_ft_in1k22486.63298.156101.66
mambaout_base_tall_rw.sw_e500_in1k28884.97497.33286.48
mambaout_base_wide_rw.sw_e500_in1k28884.96297.20894.45
mambaout_base_short_rw.sw_e500_in1k28884.83297.2788.83
mambaout_base.in1k28884.7296.9384.81
mambaout_small_rw.sw_e450_in1k28884.59897.09848.5
mambaout_small.in1k28884.596.97448.49
mambaout_base_wide_rw.sw_e500_in1k22484.45496.86494.45
mambaout_base_tall_rw.sw_e500_in1k22484.43496.95886.48
mambaout_base_short_rw.sw_e500_in1k22484.36296.95288.83
mambaout_base.in1k22484.16896.6884.81
mambaout_small.in1k22484.08696.6348.49
mambaout_small_rw.sw_e450_in1k22484.02496.75248.5
mambaout_tiny.in1k28883.44896.53826.55
mambaout_tiny.in1k22482.73696.126.55
mambaout_kobe.in1k28881.05495.7189.14
mambaout_kobe.in1k22479.98694.9869.14
mambaout_femto.in1k28879.84895.147.3
mambaout_femto.in1k22478.8794.4087.3

Citation#

@misc{rw2019timm,
  author = {Ross Wightman},
  title = {PyTorch Image Models},
  year = {2019},
  publisher = {GitHub},
  journal = {GitHub repository},
  doi = {10.5281/zenodo.4414861},
  howpublished = {\url{https://github.com/huggingface/pytorch-image-models}}
}
@article{yu2024mambaout,
  title={MambaOut: Do We Really Need Mamba for Vision?},
  author={Yu, Weihao and Wang, Xinchao},
  journal={arXiv preprint arXiv:2405.07992},
  year={2024}
}

Files

5 files · 388 MBWeights 194 MB (safetensors). Sizes and sha256 from the signed manifest.
Hide all 5 files with their sha256
FileSizesha256
.gitattributes1.52 KB11ad7efa24975ee4b0c3c3a38ed18737f0658a5f75a0a96787b576a78a023361
README.md7.49 KBcf1c3234f740f6e51194d73cd53a07b6c8bcbcb2c7090b4486170d82fcb9c404
config.json642 B1e064e06134b9df096ff0dc2409c04d0e71f4db31af89aedf34a64526a35e909
model.safetensors194 MB893c9ba8676ca80a87293a120c8ab46c8d1a11b767c9acd24b02f4b7996e1e86
pytorch_model.bin194 MBd7993437945ff4ae930bd6c8fb35956dc615e63c5dbbde0329888daf6f45263a
VersionsEach time the pinned upstream commit or file list changed in this repo. Newest first.
Upstream commitDateContents
cffff4a64f pinned now2026-11-15 03:48 UTC5 files · 388 MB

Use it

$ fw get timm/mambaout_small_rw.sw_e450_in1k
# manifest sha256 3675790d5644… · 388 MB · 5 files
$ fw verify ./mambaout_small_rw.sw_e450_in1k timm/mambaout_small_rw.sw_e450_in1k
fw.pyChecks the signature and every sha256, tries each source in order, resumes.
$ python3 fw.py get https://freeweights.allternit.com/manifests/timm/mambaout_small_rw.sw_e450_in1k.json --dir ./mambaout_small_rw.sw_e450_in1k $ python3 fw.py verify ./mambaout_small_rw.sw_e450_in1k ./timm__mambaout_small_rw.sw_e450_in1k.json
hfThe Hugging Face CLI with one setting. Same repo id.
$ HF_ENDPOINT=https://freeweights.allternit.com hf download timm/mambaout_small_rw.sw_e450_in1k --revision cffff4a64f94b729cd542639e884b2ae1d787d65 --local-dir ./mambaout_small_rw.sw_e450_in1k

License

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
cf1c3234f740f6e51194d73cd53a07b6c8bcbcb2c7090b4486170d82fcb9c404
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: timm <huggingface.co/timm>Newsgroups: alt.freeweights.visionSubject: mambaout_small_rw.sw_e450_in1kDate: 2026-11-15Commit: cffff4aSigned: 2DC28CC7B26A283B ✓
Upstream
timm/mambaout_small_rw.sw_e450_in1k
Pinned commit
cffff4a64f94b729cd542639e884b2ae1d787d65
Manifest
mambaout_small_rw.sw_e450_in1k.json · .minisig
Manifest sha256
3675790d5644ad66422312cb98d38d9d318e894ed10247bbefedf3ab29caaea5
Signature
minisign, Ed25519, key 2DC28CC7B26A283B
Created
2026-11-15 03:48 UTC
Generator
freeweights-manifest/0.1.0
Takedowns
None.

How to verify

$ curl -O https://freeweights.allternit.com/manifests/timm/mambaout_small_rw.sw_e450_in1k.json $ curl -O https://freeweights.allternit.com/manifests/timm/mambaout_small_rw.sw_e450_in1k.json.minisig $ minisign -Vm mambaout_small_rw.sw_e450_in1k.json -P RWQ7KGqyx4zCLXtUFOqvfv8L3g+8fpKJ1FsuxPyOYMF+4KufbUxKq1Oq $ shasum -a 256 <file> # compare with the Files tab

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Download
$ HF_ENDPOINT=https://freeweights.allternit.com hf download timm/mambaout_small_rw.sw_e450_in1k
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Signed manifest
minisign, key 2DC28CC7B26A283B. mambaout_small_rw.sw_e450_in1k.json. Provenance. Takedown history: none.
From: dima806 <huggingface.co/dima806>Subject: ai_vs_real_image_detection
From: legekka <huggingface.co/legekka>Subject: AI-Anime-Image-Detector-ViT
From: onnx-community <huggingface.co/onnx-community>Subject: AI-Anime-Image-Detector-ViT-ONNX
From: AICodexLab <huggingface.co/AICodexLab>Subject: answerdotai-ModernBERT-base-ai-detector
From: onnx-community <huggingface.co/onnx-community>Subject: answerdotai-ModernBERT-base-ai-detector-ONNX
From: onnx-community <huggingface.co/onnx-community>Subject: bart-large-cnn-ONNX