alt.freeweights.vision / sebotnet33ts_256.a1h_in1k
From: timm <huggingface.co/timm>Newsgroups: alt.freeweights.visionSubject:

sebotnet33ts_256.a1h_in1k

Date: 2026-11-15Commit: dbf0712Signed: 2DC28CC7B26A283B ✓

Image classification model with 14M parameters. Safetensors weights, 110 MB in all. Published by timm under Apache-2.0.

14M params110MBsebotnet33ts_256.a1h_in1ksafetensorspermissive
FactsParams14MSize110 MBFormatssafetensorsTaskimage classificationLicenseApache-2.0From sourcepermissive
$ fw get timm/sebotnet33ts_256.a1h_in1k
# manifest sha256 e485254f463d… · 110 MB · 5 files
$ fw verify ./sebotnet33ts_256.a1h_in1k timm/sebotnet33ts_256.a1h_in1k
From sourceHosted (signed)timm/sebotnet33ts_256.a1h_in1kLast check: 2026-11-15 03:25 UTC

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

Overview

Size
110 MB
Weights
55.0 MB (safetensors)
Parameters
14M
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
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Model card

From the publisher at commit dbf0712. Shown as plain text with links; images open at the publisher.

Model card for sebotnet33ts_256.a1h_in1k#

A BotNet image classification model (with Squeeze-and-Excitation channel attention, based on ResNet architecture). Trained on ImageNet-1k in timm by Ross Wightman.

NOTE: this model did not adhere to any specific paper configuration, it was tuned for reasonable training times and reduced frequency of self-attention blocks.

Recipe details:

  • Based on ResNet Strikes Back A1 recipe
  • LAMB optimizer
  • Stronger dropout, stochastic depth, and RandAugment than paper A1 recipe
  • Cosine LR schedule with warmup

This model architecture is implemented using timm's flexible BYOBNet (Bring-Your-Own-Blocks Network).

BYOB (with BYOANet attention specific blocks) allows configuration of:

  • block / stage layout
  • block-type interleaving
  • stem layout
  • output stride (dilation)
  • activation and norm layers
  • channel and spatial / self-attention layers

...and also includes timm features common to many other architectures, including:

  • stochastic depth
  • gradient checkpointing
  • layer-wise LR decay
  • per-stage feature extraction

Model Details#

  • Model Type: Image classification / feature backbone
  • Model Stats:
    • Params (M): 13.7
    • GMACs: 3.9
    • Activations (M): 17.5
    • Image size: 256 x 256
  • Papers:
  • Dataset: ImageNet-1k

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('sebotnet33ts_256.a1h_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(
    'sebotnet33ts_256.a1h_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, 32, 128, 128])
    #  torch.Size([1, 256, 64, 64])
    #  torch.Size([1, 512, 32, 32])
    #  torch.Size([1, 1024, 16, 16])
    #  torch.Size([1, 1280, 8, 8])

    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(
    'sebotnet33ts_256.a1h_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, 1280, 8, 8) 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#

@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{Srinivas2021BottleneckTF,
  title={Bottleneck Transformers for Visual Recognition},
  author={A. Srinivas and Tsung-Yi Lin and Niki Parmar and Jonathon Shlens and P. Abbeel and Ashish Vaswani},
  journal={2021 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)},
  year={2021},
  pages={16514-16524}
}
@inproceedings{wightman2021resnet,
  title={ResNet strikes back: An improved training procedure in timm},
  author={Wightman, Ross and Touvron, Hugo and Jegou, Herve},
  booktitle={NeurIPS 2021 Workshop on ImageNet: Past, Present, and Future}
}

Files

5 files · 110 MBWeights 55.0 MB (safetensors). Sizes and sha256 from the signed manifest.
Hide all 5 files with their sha256
FileSizesha256
.gitattributes1.48 KBdb7c0371f46f0840b8f25794c1e3321c9b5820a8cb6ba9694a46fc64b8fae5a6
README.md5.43 KB32acb167ec2403a863be45fbc514265acd6b6b7cfe78f307ae885e6ea892ea5a
config.json642 Bf0708844bb36c84dce4c344220f68945e357bb9862b2e4d03d8f181f6cad6d6c
model.safetensors55.0 MBf4e3af372c615699a90721d2f4ea89568e12dc9f12230976c6f8ea5f028455be
pytorch_model.bin55.0 MB42205c36b07b5d8a9693b585a4f31ec5803692bd808256807b8242db7617712b
VersionsEach time the pinned upstream commit or file list changed in this repo. Newest first.
Upstream commitDateContents
dbf071275c pinned now2026-11-15 03:25 UTC5 files · 110 MB

Use it

$ fw get timm/sebotnet33ts_256.a1h_in1k
# manifest sha256 e485254f463d… · 110 MB · 5 files
$ fw verify ./sebotnet33ts_256.a1h_in1k timm/sebotnet33ts_256.a1h_in1k
fw.pyChecks the signature and every sha256, tries each source in order, resumes.
$ python3 fw.py get https://freeweights.allternit.com/manifests/timm/sebotnet33ts_256.a1h_in1k.json --dir ./sebotnet33ts_256.a1h_in1k $ python3 fw.py verify ./sebotnet33ts_256.a1h_in1k ./timm__sebotnet33ts_256.a1h_in1k.json
hfThe Hugging Face CLI with one setting. Same repo id.
$ HF_ENDPOINT=https://freeweights.allternit.com hf download timm/sebotnet33ts_256.a1h_in1k --revision dbf071275cadd0025a0fa6a57a6afef5f3bd4d93 --local-dir ./sebotnet33ts_256.a1h_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
32acb167ec2403a863be45fbc514265acd6b6b7cfe78f307ae885e6ea892ea5a
Terms gate
No extra terms beyond the license.

Read the license text

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Provenance

From: timm <huggingface.co/timm>Newsgroups: alt.freeweights.visionSubject: sebotnet33ts_256.a1h_in1kDate: 2026-11-15Commit: dbf0712Signed: 2DC28CC7B26A283B ✓
Upstream
timm/sebotnet33ts_256.a1h_in1k
Pinned commit
dbf071275cadd0025a0fa6a57a6afef5f3bd4d93
Manifest
sebotnet33ts_256.a1h_in1k.json · .minisig
Manifest sha256
e485254f463d8136ae778274f80d2b5c46cdbcd60b506d9948ffbd3be05b0ede
Signature
minisign, Ed25519, key 2DC28CC7B26A283B
Created
2026-11-15 03:25 UTC
Generator
freeweights-manifest/0.1.0
Takedowns
None.

How to verify

$ curl -O https://freeweights.allternit.com/manifests/timm/sebotnet33ts_256.a1h_in1k.json $ curl -O https://freeweights.allternit.com/manifests/timm/sebotnet33ts_256.a1h_in1k.json.minisig $ minisign -Vm sebotnet33ts_256.a1h_in1k.json -P RWQ7KGqyx4zCLXtUFOqvfv8L3g+8fpKJ1FsuxPyOYMF+4KufbUxKq1Oq $ shasum -a 256 <file> # compare with the Files tab

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Signed manifest
minisign, key 2DC28CC7B26A283B. sebotnet33ts_256.a1h_in1k.json. Provenance. Takedown history: none.
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