alt.freeweights.vision / mambaout_small.in1k
From: timm <huggingface.co/timm>Newsgroups: alt.freeweights.visionSubject:

mambaout_small.in1k

Date: 2026-11-15Commit: 6dab128Signed: 2DC28CC7B26A283B ✓

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

48M params388MBmambaout_small.in1ksafetensorspermissive
FactsParams48MSize388 MBFormatssafetensorsTaskimage classificationLicenseApache-2.0From sourcepermissive
$ fw get timm/mambaout_small.in1k
# manifest sha256 b633c3fad11a… · 388 MB · 5 files
$ fw verify ./mambaout_small.in1k timm/mambaout_small.in1k
From sourceHosted (signed)timm/mambaout_small.in1kLast check: 2026-11-15 03:48 UTC

Get help: custom fine-tune or private deploy. We review your setup before we quote.

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 6dab128. Shown as plain text with links; images open at the publisher.

Model card for mambaout_small.in1k#

A MambaOut image classification model. Pretrained on ImageNet-1k by paper authors.

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.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.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.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#

@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.md7.01 KBda4ba1d93eea729fe06440cd9a94669efe186f9969208e46495ea4bd57b47eb4
config.json631 Ba8ffc59b4f2a72e84ddfb7e6c654c0235bba5fb38459fa9b862dd6f9e5be631a
model.safetensors194 MB48b5046af3a41cb18c46dfad3c462e468966ac0ace33fcc5e3ca6608f9bdcc5f
pytorch_model.bin194 MB00147d3e02d17c9b53e981a276b9f62c855720defdeac31845e6c6300c8157b6
VersionsEach time the pinned upstream commit or file list changed in this repo. Newest first.
Upstream commitDateContents
6dab128901 pinned now2026-11-15 03:48 UTC5 files · 388 MB

Use it

$ fw get timm/mambaout_small.in1k
# manifest sha256 b633c3fad11a… · 388 MB · 5 files
$ fw verify ./mambaout_small.in1k timm/mambaout_small.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.in1k.json --dir ./mambaout_small.in1k $ python3 fw.py verify ./mambaout_small.in1k ./timm__mambaout_small.in1k.json
hfThe Hugging Face CLI with one setting. Same repo id.
$ HF_ENDPOINT=https://freeweights.allternit.com hf download timm/mambaout_small.in1k --revision 6dab12890168444e9e114f91ccf8b568b73f7228 --local-dir ./mambaout_small.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
da4ba1d93eea729fe06440cd9a94669efe186f9969208e46495ea4bd57b47eb4
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.in1kDate: 2026-11-15Commit: 6dab128Signed: 2DC28CC7B26A283B ✓
Upstream
timm/mambaout_small.in1k
Pinned commit
6dab12890168444e9e114f91ccf8b568b73f7228
Manifest
mambaout_small.in1k.json · .minisig
Manifest sha256
b633c3fad11ac068c3cf6443f479a529bfc718ddfd326803398a6251aab65476
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.in1k.json $ curl -O https://freeweights.allternit.com/manifests/timm/mambaout_small.in1k.json.minisig $ minisign -Vm mambaout_small.in1k.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 related models in this catalog.Nothing here lists this model as its parent, and it names no parent.
Get it
Download
$ HF_ENDPOINT=https://freeweights.allternit.com hf download timm/mambaout_small.in1k
Open in Freeweights Studio

Pull, verify and run it in the Allternit app on Desktop, web or phone.

Signed manifest
minisign, key 2DC28CC7B26A283B. mambaout_small.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