alt.freeweights.vision / efficientnet_b1.ft_in1k
From: timm <huggingface.co/timm>Newsgroups: alt.freeweights.visionSubject:

efficientnet_b1.ft_in1k

Date: 2026-11-15Commit: 1d6ddfdSigned: 2DC28CC7B26A283B ✓

Image classification model with 8M parameters. Safetensors weights, 63.1 MB in all. Published by timm under Apache-2.0.

8M params63.1MBefficientnet_b1.ft_in1ksafetensorspermissive
FactsParams8MSize63.1 MBFormatssafetensorsTaskimage classificationLicenseApache-2.0From sourcepermissive
$ fw get timm/efficientnet_b1.ft_in1k
# manifest sha256 15be06d6c96e… · 63.1 MB · 5 files
$ fw verify ./efficientnet_b1.ft_in1k timm/efficientnet_b1.ft_in1k
From sourceHosted (signed)timm/efficientnet_b1.ft_in1kLast check: 2026-11-15 02:49 UTC

Get help: custom fine-tune or private deploy. We review your setup before we quote.

Works with

Runs with

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

Overview

Size
63.1 MB
Weights
31.5 MB (safetensors)
Parameters
8M
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 1d6ddfd. Shown as plain text with links; images open at the publisher.

Model card for efficientnet_b1.ft_in1k#

A EfficientNet image classification model. Fine-tuned on ImageNet-1k from original Tensorflow "SAME" padding weights for use in PyTorch.

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('efficientnet_b1.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(
    'efficientnet_b1.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, 16, 112, 112])
    #  torch.Size([1, 24, 56, 56])
    #  torch.Size([1, 40, 28, 28])
    #  torch.Size([1, 112, 14, 14])
    #  torch.Size([1, 320, 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(
    'efficientnet_b1.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, 1280, 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#

@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}}
}
@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}
}

Files

5 files · 63.1 MBWeights 31.5 MB (safetensors). Sizes and sha256 from the signed manifest.
Hide all 5 files with their sha256
FileSizesha256
.gitattributes1.48 KBdb7c0371f46f0840b8f25794c1e3321c9b5820a8cb6ba9694a46fc64b8fae5a6
README.md4.09 KBb5c06bb93ad9c0a1c41a094cb096c8ef1c1ec7c441e13e7f409a43c77835a1ff
config.json638 B4bcc5bdacffb1bb9264fff246bf8e167f9e4318fb8d2ad2d178ee32b92f9d2f6
model.safetensors31.5 MB2eb860ed42ef594b3ae479669e306927bb4d4018e246e38f512b6b25b1734f6e
pytorch_model.bin31.6 MB5fffd7b0d6fec411a55e95469e0e38a15a2eb3a49a72fa9ed7a09112e73cf417
VersionsEach time the pinned upstream commit or file list changed in this repo. Newest first.
Upstream commitDateContents
1d6ddfd0ad pinned now2026-11-15 02:49 UTC5 files · 63.1 MB

Use it

$ fw get timm/efficientnet_b1.ft_in1k
# manifest sha256 15be06d6c96e… · 63.1 MB · 5 files
$ fw verify ./efficientnet_b1.ft_in1k timm/efficientnet_b1.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/efficientnet_b1.ft_in1k.json --dir ./efficientnet_b1.ft_in1k $ python3 fw.py verify ./efficientnet_b1.ft_in1k ./timm__efficientnet_b1.ft_in1k.json
hfThe Hugging Face CLI with one setting. Same repo id.
$ HF_ENDPOINT=https://freeweights.allternit.com hf download timm/efficientnet_b1.ft_in1k --revision 1d6ddfd0ad535646fdb05bc3834913d93816152e --local-dir ./efficientnet_b1.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
b5c06bb93ad9c0a1c41a094cb096c8ef1c1ec7c441e13e7f409a43c77835a1ff
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: efficientnet_b1.ft_in1kDate: 2026-11-15Commit: 1d6ddfdSigned: 2DC28CC7B26A283B ✓
Upstream
timm/efficientnet_b1.ft_in1k
Pinned commit
1d6ddfd0ad535646fdb05bc3834913d93816152e
Manifest
efficientnet_b1.ft_in1k.json · .minisig
Manifest sha256
15be06d6c96eaf3bc1b1338174e372eb5617b0fc0302f20dd0815edd8b5a8764
Signature
minisign, Ed25519, key 2DC28CC7B26A283B
Created
2026-11-15 02:49 UTC
Generator
freeweights-manifest/0.1.0
Takedowns
None.

How to verify

$ curl -O https://freeweights.allternit.com/manifests/timm/efficientnet_b1.ft_in1k.json $ curl -O https://freeweights.allternit.com/manifests/timm/efficientnet_b1.ft_in1k.json.minisig $ minisign -Vm efficientnet_b1.ft_in1k.json -P RWQ7KGqyx4zCLXtUFOqvfv8L3g+8fpKJ1FsuxPyOYMF+4KufbUxKq1Oq $ shasum -a 256 <file> # compare with the Files tab

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Signed manifest
minisign, key 2DC28CC7B26A283B. efficientnet_b1.ft_in1k.json. Provenance. Takedown history: none.
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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