alt.freeweights.vision / eca_botnext26ts_256.c1_in1k
From: timm <huggingface.co/timm>Newsgroups: alt.freeweights.visionSubject:

eca_botnext26ts_256.c1_in1k

Date: 2026-11-15Commit: 490aa3cSigned: 2DC28CC7B26A283B ✓

Image classification model with 11M parameters. Safetensors weights, 85.1 MB in all. Published by timm under Apache-2.0.

11M params85.1MBeca_botnext26ts_256.c1_in1ksafetensorspermissive
FactsParams11MSize85.1 MBFormatssafetensorsTaskimage classificationLicenseApache-2.0From sourcepermissive
$ fw get timm/eca_botnext26ts_256.c1_in1k
# manifest sha256 c2f22353c360… · 85.1 MB · 5 files
$ fw verify ./eca_botnext26ts_256.c1_in1k timm/eca_botnext26ts_256.c1_in1k
From sourceHosted (signed)timm/eca_botnext26ts_256.c1_in1kLast check: 2026-11-15 03:27 UTC

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Runs with

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

Overview

Size
85.1 MB
Weights
42.5 MB (safetensors)
Parameters
11M
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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Original release from the publisher.

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Model card

From the publisher at commit 490aa3c. Shown as plain text with links; images open at the publisher.

Model card for eca_botnext26ts_256.c1_in1k#

A BotNet image classification model (with Efficient channel attention, based on ResNeXt 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 C recipes
  • SGD (w/ Nesterov) optimizer and AGC (adaptive gradient clipping).
  • 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): 10.6
    • GMACs: 2.5
    • Activations (M): 11.6
    • 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('eca_botnext26ts_256.c1_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(
    'eca_botnext26ts_256.c1_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, 128, 128])
    #  torch.Size([1, 256, 64, 64])
    #  torch.Size([1, 512, 32, 32])
    #  torch.Size([1, 1024, 16, 16])
    #  torch.Size([1, 2048, 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(
    'eca_botnext26ts_256.c1_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, 2048, 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 · 85.1 MBWeights 42.5 MB (safetensors). Sizes and sha256 from the signed manifest.
Hide all 5 files with their sha256
FileSizesha256
.gitattributes1.48 KBdb7c0371f46f0840b8f25794c1e3321c9b5820a8cb6ba9694a46fc64b8fae5a6
README.md5.40 KBc5ae5b3fe5576d378b2ecb5cd8db6ad36b04d39e98d80cdef5b185a9b444dfe3
config.json644 Be4198bf956dba524d2e7ce53d56a13aec1663df97b747ea60e7890fed6eb491d
model.safetensors42.5 MBf5e716741475d191e670fff43185714ea125e13a1d411bfefd775b1e22c3db77
pytorch_model.bin42.6 MBc3dc8b8458842a551a2e3c86c81975cf206711009654624c1e6a21dc717113a9
VersionsEach time the pinned upstream commit or file list changed in this repo. Newest first.
Upstream commitDateContents
490aa3c4b1 pinned now2026-11-15 03:27 UTC5 files · 85.1 MB

Use it

$ fw get timm/eca_botnext26ts_256.c1_in1k
# manifest sha256 c2f22353c360… · 85.1 MB · 5 files
$ fw verify ./eca_botnext26ts_256.c1_in1k timm/eca_botnext26ts_256.c1_in1k
fw.pyChecks the signature and every sha256, tries each source in order, resumes.
$ python3 fw.py get https://freeweights.allternit.com/manifests/timm/eca_botnext26ts_256.c1_in1k.json --dir ./eca_botnext26ts_256.c1_in1k $ python3 fw.py verify ./eca_botnext26ts_256.c1_in1k ./timm__eca_botnext26ts_256.c1_in1k.json
hfThe Hugging Face CLI with one setting. Same repo id.
$ HF_ENDPOINT=https://freeweights.allternit.com hf download timm/eca_botnext26ts_256.c1_in1k --revision 490aa3c4b15d03e54f6029ede91cb05c8f183cbf --local-dir ./eca_botnext26ts_256.c1_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
c5ae5b3fe5576d378b2ecb5cd8db6ad36b04d39e98d80cdef5b185a9b444dfe3
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: eca_botnext26ts_256.c1_in1kDate: 2026-11-15Commit: 490aa3cSigned: 2DC28CC7B26A283B ✓
Upstream
timm/eca_botnext26ts_256.c1_in1k
Pinned commit
490aa3c4b15d03e54f6029ede91cb05c8f183cbf
Manifest
eca_botnext26ts_256.c1_in1k.json · .minisig
Manifest sha256
c2f22353c3603d9cd4f182f44ed5c336cb1d63ac78d5454449ff9561f62c8137
Signature
minisign, Ed25519, key 2DC28CC7B26A283B
Created
2026-11-15 03:27 UTC
Generator
freeweights-manifest/0.1.0
Takedowns
None.

How to verify

$ curl -O https://freeweights.allternit.com/manifests/timm/eca_botnext26ts_256.c1_in1k.json $ curl -O https://freeweights.allternit.com/manifests/timm/eca_botnext26ts_256.c1_in1k.json.minisig $ minisign -Vm eca_botnext26ts_256.c1_in1k.json -P RWQ7KGqyx4zCLXtUFOqvfv8L3g+8fpKJ1FsuxPyOYMF+4KufbUxKq1Oq $ shasum -a 256 <file> # compare with the Files tab

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Signed manifest
minisign, key 2DC28CC7B26A283B. eca_botnext26ts_256.c1_in1k.json. Provenance. Takedown history: none.
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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