alt.freeweights.vision / tf_efficientnet_b4.aa_in1k
From: timm <huggingface.co/timm>Newsgroups: alt.freeweights.visionSubject:

tf_efficientnet_b4.aa_in1k

Date: 2026-11-15Commit: c429f58Signed: 2DC28CC7B26A283B ✓

Image classification model with 19M parameters. Safetensors weights, 156 MB in all. Published by timm under Apache-2.0.

19M params156MBtf_efficientnet_b4.aa_in1ksafetensorspermissive
FactsParams19MSize156 MBFormatssafetensorsTaskimage classificationLicenseApache-2.0From sourcepermissive
$ fw get timm/tf_efficientnet_b4.aa_in1k
# manifest sha256 1860f8844769… · 156 MB · 5 files
$ fw verify ./tf_efficientnet_b4.aa_in1k timm/tf_efficientnet_b4.aa_in1k
From sourceHosted (signed)timm/tf_efficientnet_b4.aa_in1kLast check: 2026-11-15 03:37 UTC

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Works with

Runs with

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

Overview

Size
156 MB
Weights
77.9 MB (safetensors)
Parameters
19M
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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From sourcehuggingface.co2026-11-15 03:37 UTCpassed

Model card

From the publisher at commit c429f58. Shown as plain text with links; images open at the publisher.

Model card for tf_efficientnet_b4.aa_in1k#

A EfficientNet image classification model. Trained on ImageNet-1k with auto-augment in Tensorflow by paper authors, ported to PyTorch by Ross Wightman.

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('tf_efficientnet_b4.aa_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(
    'tf_efficientnet_b4.aa_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, 24, 190, 190])
    #  torch.Size([1, 32, 95, 95])
    #  torch.Size([1, 56, 48, 48])
    #  torch.Size([1, 160, 24, 24])
    #  torch.Size([1, 448, 12, 12])

    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(
    'tf_efficientnet_b4.aa_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, 1792, 12, 12) 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#

@inproceedings{tan2019efficientnet,
  title={Efficientnet: Rethinking model scaling for convolutional neural networks},
  author={Tan, Mingxing and Le, Quoc},
  booktitle={International conference on machine learning},
  pages={6105--6114},
  year={2019},
  organization={PMLR}
}
@inproceedings{47890,
    title       = {AutoAugment: Learning Augmentation Policies from Data},
    author      = {Ekin Dogus Cubuk and Barret Zoph and Dandelion Mane and Vijay Vasudevan and Quoc V. Le},
    year        = {2019},
    URL = {https://arxiv.org/pdf/1805.09501.pdf}
}
@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}}
}

Files

5 files · 156 MBWeights 77.9 MB (safetensors). Sizes and sha256 from the signed manifest.
Hide all 5 files with their sha256
FileSizesha256
.gitattributes1.48 KBdb7c0371f46f0840b8f25794c1e3321c9b5820a8cb6ba9694a46fc64b8fae5a6
README.md4.51 KB042cd8ec09f95a3e02953d8fa293df2454b5f6c537e7f37de10aef9fe955bf9d
config.json583 Ba1e2ea931dc86df6893d72d314bf7b49825b43423c0ac4944faf7b9f80e21d1a
model.safetensors77.9 MB8cd8ae7b6cf7dcac95cfa4c0187639b7bb618cb1554b713a057918d0fb794401
pytorch_model.bin78.1 MBc71dea7ce238d81c57d96dadea9e26c8f334be2964df893ebcf580a9e68390d4
VersionsEach time the pinned upstream commit or file list changed in this repo. Newest first.
Upstream commitDateContents
c429f589f9 pinned now2026-11-15 03:37 UTC5 files · 156 MB

Use it

$ fw get timm/tf_efficientnet_b4.aa_in1k
# manifest sha256 1860f8844769… · 156 MB · 5 files
$ fw verify ./tf_efficientnet_b4.aa_in1k timm/tf_efficientnet_b4.aa_in1k
fw.pyChecks the signature and every sha256, tries each source in order, resumes.
$ python3 fw.py get https://freeweights.allternit.com/manifests/timm/tf_efficientnet_b4.aa_in1k.json --dir ./tf_efficientnet_b4.aa_in1k $ python3 fw.py verify ./tf_efficientnet_b4.aa_in1k ./timm__tf_efficientnet_b4.aa_in1k.json
hfThe Hugging Face CLI with one setting. Same repo id.
$ HF_ENDPOINT=https://freeweights.allternit.com hf download timm/tf_efficientnet_b4.aa_in1k --revision c429f589f94f7009ad8027ca478b1bda9cb4a2fa --local-dir ./tf_efficientnet_b4.aa_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
042cd8ec09f95a3e02953d8fa293df2454b5f6c537e7f37de10aef9fe955bf9d
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: tf_efficientnet_b4.aa_in1kDate: 2026-11-15Commit: c429f58Signed: 2DC28CC7B26A283B ✓
Upstream
timm/tf_efficientnet_b4.aa_in1k
Pinned commit
c429f589f94f7009ad8027ca478b1bda9cb4a2fa
Manifest
tf_efficientnet_b4.aa_in1k.json · .minisig
Manifest sha256
1860f88447691b2c64b7a94cb6b28d4c406a4a483c685159c00bf4a5fc009d95
Signature
minisign, Ed25519, key 2DC28CC7B26A283B
Created
2026-11-15 03:37 UTC
Generator
freeweights-manifest/0.1.0
Takedowns
None.

How to verify

$ curl -O https://freeweights.allternit.com/manifests/timm/tf_efficientnet_b4.aa_in1k.json $ curl -O https://freeweights.allternit.com/manifests/timm/tf_efficientnet_b4.aa_in1k.json.minisig $ minisign -Vm tf_efficientnet_b4.aa_in1k.json -P RWQ7KGqyx4zCLXtUFOqvfv8L3g+8fpKJ1FsuxPyOYMF+4KufbUxKq1Oq $ shasum -a 256 <file> # compare with the Files tab

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Signed manifest
minisign, key 2DC28CC7B26A283B. tf_efficientnet_b4.aa_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