alt.freeweights.vision / caformer_s36.sail_in22k_ft_in1k
From: timm <huggingface.co/timm>Newsgroups: alt.freeweights.visionSubject:

caformer_s36.sail_in22k_ft_in1k

Date: 2026-11-15Commit: 71ed037Signed: 2DC28CC7B26A283B ✓

Image classification model with 39M parameters. Safetensors weights, 315 MB in all. Published by timm under Apache-2.0.

39M params315MBcaformer_s36.sail_in22k_ft_in1ksafetensorspermissive
FactsParams39MSize315 MBFormatssafetensorsTaskimage classificationLicenseApache-2.0From sourcepermissive
$ fw get timm/caformer_s36.sail_in22k_ft_in1k
# manifest sha256 3e8845be4d07… · 315 MB · 5 files
$ fw verify ./caformer_s36.sail_in22k_ft_in1k timm/caformer_s36.sail_in22k_ft_in1k
From sourceHosted (signed)timm/caformer_s36.sail_in22k_ft_in1kLast check: 2026-11-15 02:45 UTC

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Works with

Runs with

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

Overview

Size
315 MB
Weights
157 MB (safetensors)
Parameters
39M
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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BadgeHostLast checkResult
From sourcehuggingface.co2026-11-15 02:45 UTCpassed

Model card

From the publisher at commit 71ed037. Shown as plain text with links; images open at the publisher.

Model card for caformer_s36.sail_in22k_ft_in1k#

A CAFormer (a MetaFormer) image classification model. Pretrained on ImageNet-22k and fine-tuned 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('caformer_s36.sail_in22k_ft_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(
    'caformer_s36.sail_in22k_ft_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, 64, 56, 56])
    #  torch.Size([1, 128, 28, 28])
    #  torch.Size([1, 320, 14, 14])
    #  torch.Size([1, 512, 7, 7])

    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(
    'caformer_s36.sail_in22k_ft_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, 512, 7, 7) shaped tensor

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

Model Comparison#

Explore the dataset and runtime metrics of this model in timm model results.

Citation#

@article{yu2022metaformer_baselines,
  title={Metaformer baselines for vision},
  author={Yu, Weihao and Si, Chenyang and Zhou, Pan and Luo, Mi and Zhou, Yichen and Feng, Jiashi and Yan, Shuicheng and Wang, Xinchao},
  journal={arXiv preprint arXiv:2210.13452},
  year={2022}
}

Files

5 files · 315 MBWeights 157 MB (safetensors). Sizes and sha256 from the signed manifest.
Hide all 5 files with their sha256
FileSizesha256
.gitattributes1.48 KBdb7c0371f46f0840b8f25794c1e3321c9b5820a8cb6ba9694a46fc64b8fae5a6
README.md3.77 KB304599328ceba108ad497175b2e32258ee572ea9846d3830d8e66b1ffec7e0c6
config.json584 B7bae91c923560345fbee8f853a2f80ac1941666fa0a1af8d40c093a97375c699
model.safetensors157 MB85166c3a59d3aff6267235df08c8da261c115be8898a56d6fca7eb8fb35f3efe
pytorch_model.bin157 MBad93ea62f85c63a9008407fc1740b8158e3c494e7eb66a9045c56fca00f01267
VersionsEach time the pinned upstream commit or file list changed in this repo. Newest first.
Upstream commitDateContents
71ed03700f pinned now2026-11-15 02:45 UTC5 files · 315 MB

Use it

$ fw get timm/caformer_s36.sail_in22k_ft_in1k
# manifest sha256 3e8845be4d07… · 315 MB · 5 files
$ fw verify ./caformer_s36.sail_in22k_ft_in1k timm/caformer_s36.sail_in22k_ft_in1k
fw.pyChecks the signature and every sha256, tries each source in order, resumes.
$ python3 fw.py get https://freeweights.allternit.com/manifests/timm/caformer_s36.sail_in22k_ft_in1k.json --dir ./caformer_s36.sail_in22k_ft_in1k $ python3 fw.py verify ./caformer_s36.sail_in22k_ft_in1k ./timm__caformer_s36.sail_in22k_ft_in1k.json
hfThe Hugging Face CLI with one setting. Same repo id.
$ HF_ENDPOINT=https://freeweights.allternit.com hf download timm/caformer_s36.sail_in22k_ft_in1k --revision 71ed03700f6ea61fd484d826edc3d39017d14dfe --local-dir ./caformer_s36.sail_in22k_ft_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
304599328ceba108ad497175b2e32258ee572ea9846d3830d8e66b1ffec7e0c6
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: caformer_s36.sail_in22k_ft_in1kDate: 2026-11-15Commit: 71ed037Signed: 2DC28CC7B26A283B ✓
Upstream
timm/caformer_s36.sail_in22k_ft_in1k
Pinned commit
71ed03700f6ea61fd484d826edc3d39017d14dfe
Manifest
caformer_s36.sail_in22k_ft_in1k.json · .minisig
Manifest sha256
3e8845be4d07116db0fc790f67c3f68319b5ca39c1edf6666e17134db592883b
Signature
minisign, Ed25519, key 2DC28CC7B26A283B
Created
2026-11-15 02:45 UTC
Generator
freeweights-manifest/0.1.0
Takedowns
None.

How to verify

$ curl -O https://freeweights.allternit.com/manifests/timm/caformer_s36.sail_in22k_ft_in1k.json $ curl -O https://freeweights.allternit.com/manifests/timm/caformer_s36.sail_in22k_ft_in1k.json.minisig $ minisign -Vm caformer_s36.sail_in22k_ft_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

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Get it
Download
$ HF_ENDPOINT=https://freeweights.allternit.com hf download timm/caformer_s36.sail_in22k_ft_in1k
Open in Freeweights Studio

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Signed manifest
minisign, key 2DC28CC7B26A283B. caformer_s36.sail_in22k_ft_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