alt.freeweights.vision / tf_efficientnet_b4.ns_jft_in1k
From: timm <huggingface.co/timm>Newsgroups: alt.freeweights.visionSubject:

tf_efficientnet_b4.ns_jft_in1k

Date: 2026-11-15Commit: 40be4c2Signed: 2DC28CC7B26A283B ✓

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

19M params156MBtf_efficientnet_b4.ns_jft_in1ksafetensorspermissive
FactsParams19MSize156 MBFormatssafetensorsTaskimage classificationLicenseApache-2.0From sourcepermissive
$ fw get timm/tf_efficientnet_b4.ns_jft_in1k
# manifest sha256 2f95a24d0f1d… · 156 MB · 5 files
$ fw verify ./tf_efficientnet_b4.ns_jft_in1k timm/tf_efficientnet_b4.ns_jft_in1k
From sourceHosted (signed)timm/tf_efficientnet_b4.ns_jft_in1kLast check: 2026-11-15 02:39 UTC

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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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From sourcehuggingface.co2026-11-15 02:39 UTCpassed

Model card

From the publisher at commit 40be4c2. Shown as plain text with links; images open at the publisher.

Model card for tf_efficientnet_b4.ns_jft_in1k#

A EfficientNet image classification model. Trained on ImageNet-1k and unlabeled JFT-300m using Noisy Student semi-supervised learning 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.ns_jft_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.ns_jft_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.ns_jft_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}
}
@article{Xie2019SelfTrainingWN,
  title={Self-Training With Noisy Student Improves ImageNet Classification},
  author={Qizhe Xie and Eduard H. Hovy and Minh-Thang Luong and Quoc V. Le},
  journal={2020 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)},
  year={2019},
  pages={10684-10695}
}
@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.md4.62 KBef73eb3289881485740f9c4577af36aceed909372990e2cc8174deac12e7c443
config.json587 B16cd78f150668bf27bbc3c336aa759bfdb8f24109ada1ed6d3272016f271cd86
model.safetensors77.9 MBede54280eab358dcd49d71f4dcabcedf14a0ac33267bac772b66110cbe168f79
pytorch_model.bin78.1 MBe71b294cca634079b547cbcea0b8a40d2acb92263a4d247f20033764b7aae432
VersionsEach time the pinned upstream commit or file list changed in this repo. Newest first.
Upstream commitDateContents
40be4c2e3f pinned now2026-11-15 02:39 UTC5 files · 156 MB

Use it

$ fw get timm/tf_efficientnet_b4.ns_jft_in1k
# manifest sha256 2f95a24d0f1d… · 156 MB · 5 files
$ fw verify ./tf_efficientnet_b4.ns_jft_in1k timm/tf_efficientnet_b4.ns_jft_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.ns_jft_in1k.json --dir ./tf_efficientnet_b4.ns_jft_in1k $ python3 fw.py verify ./tf_efficientnet_b4.ns_jft_in1k ./timm__tf_efficientnet_b4.ns_jft_in1k.json
hfThe Hugging Face CLI with one setting. Same repo id.
$ HF_ENDPOINT=https://freeweights.allternit.com hf download timm/tf_efficientnet_b4.ns_jft_in1k --revision 40be4c2e3f4a91b2d9772137bfc2ea959e6e5260 --local-dir ./tf_efficientnet_b4.ns_jft_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
ef73eb3289881485740f9c4577af36aceed909372990e2cc8174deac12e7c443
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.ns_jft_in1kDate: 2026-11-15Commit: 40be4c2Signed: 2DC28CC7B26A283B ✓
Upstream
timm/tf_efficientnet_b4.ns_jft_in1k
Pinned commit
40be4c2e3f4a91b2d9772137bfc2ea959e6e5260
Manifest
tf_efficientnet_b4.ns_jft_in1k.json · .minisig
Manifest sha256
2f95a24d0f1d86ce4fd3706359272ae114b2a482c8f3503adabdb68c4e3df280
Signature
minisign, Ed25519, key 2DC28CC7B26A283B
Created
2026-11-15 02:39 UTC
Generator
freeweights-manifest/0.1.0
Takedowns
None.

How to verify

$ curl -O https://freeweights.allternit.com/manifests/timm/tf_efficientnet_b4.ns_jft_in1k.json $ curl -O https://freeweights.allternit.com/manifests/timm/tf_efficientnet_b4.ns_jft_in1k.json.minisig $ minisign -Vm tf_efficientnet_b4.ns_jft_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.ns_jft_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