timm documentation
Next-ViT
Next-ViT
Category: Hybrid · Code: timm/models/nextvit.py · Architectures: 3 · Pretrained weights: 12 (12 with ImageNet-1k results)
Next-ViT is a hybrid CNN / transformer for efficient deployment, stacking Next Convolution Blocks (NCB) and Next Transformer Blocks (NTB).
Papers
Usage
See the Quickstart for loading pretrained weights, image preprocessing and fine-tuning, and Feature Extraction for using the models as backbones.
>>> import timm
>>> model = timm.create_model('nextvit_small.bd_in1k', pretrained=True)
>>> data_config = timm.data.resolve_model_data_config(model)Model API support
✓ supported, ✓ (square) works for square sizes only, ✗ not supported, – not needed (the model already accepts any input
size). Checked by running each feature on a randomly initialized model (NextViT with nextvit_small at 224), other
architectures of the same class are expected to behave the same. See the Model API page for details.
Architectures
| Architecture | Params (M) | GMACs | Input size | Pretrained weights |
|---|---|---|---|---|
nextvit_base | 44.79 | 8.29 | 224 | 4 |
nextvit_large | 57.83 | 10.77 | 224 | 4 |
nextvit_small | 31.74 | 5.80 | 224 | 4 |
GMACs and parameter counts are for the default input size and classifier of each architecture, from the benchmark results.
Pretrained weights
Top-1 is ImageNet-1k validation accuracy from results-imagenet.csv at
the listed eval size, - if the weight has no ImageNet-1k result (e.g. pretraining or image-text weights). Classes is the
size of the pretrained classifier, none for weights without one.
| Weight | Input size | Top-1 (%) | Eval size | Classes | License | Hub |
|---|---|---|---|---|---|---|
nextvit_base.bd_in1k | 224 | 83.498 | 224 | 1000 | apache-2.0 | timm |
nextvit_base.bd_in1k_384 | 384 | 84.706 | 384 | 1000 | apache-2.0 | timm |
nextvit_base.bd_ssld_6m_in1k | 224 | 85.186 | 224 | 1000 | apache-2.0 | timm |
nextvit_base.bd_ssld_6m_in1k_384 | 384 | 86.372 | 384 | 1000 | apache-2.0 | timm |
nextvit_large.bd_in1k | 224 | 83.654 | 224 | 1000 | apache-2.0 | timm |
nextvit_large.bd_in1k_384 | 384 | 84.930 | 384 | 1000 | apache-2.0 | timm |
nextvit_large.bd_ssld_6m_in1k | 224 | 85.514 | 224 | 1000 | apache-2.0 | timm |
nextvit_large.bd_ssld_6m_in1k_384 | 384 | 86.544 | 384 | 1000 | apache-2.0 | timm |
nextvit_small.bd_in1k | 224 | 82.626 | 224 | 1000 | apache-2.0 | timm |
nextvit_small.bd_in1k_384 | 384 | 84.036 | 384 | 1000 | apache-2.0 | timm |
nextvit_small.bd_ssld_6m_in1k | 224 | 84.872 | 224 | 1000 | apache-2.0 | timm |
nextvit_small.bd_ssld_6m_in1k_384 | 384 | 85.966 | 384 | 1000 | apache-2.0 | timm |