PyTorch Image Models Files

August 27, 2026

• Add LowFormer model and weights
• Fix or merge a host of real but small or not commonly encountered bugs surfaced by agents
• Release 1.0.29

August 11, 2026

• Add model defs and pretrained weights for
• CPUBone, an efficient vision backbone for devices with low parallelization capabilities.
• PP-LCNetV2.
• LingBot-Vision.
• Add per-batch image and batch size scheduling for non-NaFlex training, including progressive small-to-large resolution schedules.
• Improve NaFlexViT with key-only attention masks, compile-friendly and memory-efficient position sampling, and cached variable-patch interpolation.
• Improve model factory path and checkpoint handling; fix equal-token positional embedding resampling.

What's Changed

• Add optional key-only masks for NaFlexVit self-attention by @chenghuichen in https://github.com/huggingface/pytorch-image-models/pull/2719
• Make NaFlex position embedding sampling compile-friendly and memory-efficient by @chenghuichen in https://github.com/huggingface/pytorch-image-models/pull/2720
• Variable train image sizes by @rwightman in https://github.com/huggingface/pytorch-image-models/pull/2722
• Improved model factory path handling. Fix [#2725] by @rwightman in https://github.com/huggingface/pytorch-image-models/pull/2727
• Naflex interp cache by @rwightman in https://github.com/huggingface/pytorch-image-models/pull/2728
• Cpubone by @rwightman in https://github.com/huggingface/pytorch-image-models/pull/2733
• Fix positional embedding resampling for equal-token grid changes by @aswanth-07 in https://github.com/huggingface/pytorch-image-models/pull/2737
• Add LingBot-Vision models by @belfner in https://github.com/huggingface/pytorch-image-models/pull/2730
• Add PP-LCNetV2 (lcnetv2_small / lcnetv2_base / lcnetv2_large) by @developer0hye in https://github.com/huggingface/pytorch-image-models/pull/2736
• Fix CutMix minmax border sampling by @tandede in https://github.com/huggingface/pytorch-image-models/pull/2739
• A few more mixup / cutmix / bbox range fixups by @rwightman in https://github.com/huggingface/pytorch-image-models/pull/2740
• Return the fused RMSNorm2d result directly by @Robertboy18 in https://github.com/huggingface/pytorch-image-models/pull/2741
• Fix custom input channels for pruned EfficientNet models by @aswanth-07 in https://github.com/huggingface/pytorch-image-models/pull/2742
• Preserve classifier head device and dtype on reset by @aswanth-07 in https://github.com/huggingface/pytorch-image-models/pull/2743
• Fix load_pretrained helper in NaFlexVit, make purpose clear by @rwightman in https://github.com/huggingface/pytorch-image-models/pull/2746
• Fix AttributeError in auto-augment factories when hparams is None by @winklemad in https://github.com/huggingface/pytorch-image-models/pull/2747
• Fix AdafactorBigVision dropping the factored row normalization for tall matrices by @winklemad in https://github.com/huggingface/pytorch-image-models/pull/2749
• Fix auto-augment 'inc' and 'b' config flags ignoring the documented 0 value by @winklemad in https://github.com/huggingface/pytorch-image-models/pull/2748
• Fix SGDW foreach path applying weight decay once per (device, dtype) group by @winklemad in https://github.com/huggingface/pytorch-image-models/pull/2750
• Fix OptimizerRegistry.create_optimizer crash on layer_decay without an explicit min scale by @winklemad in https://github.com/huggingface/pytorch-image-models/pull/2754
• Fix device / dtype change for all classifier resets by @rwightman in https://github.com/huggingface/pytorch-image-models/pull/2752
• Add LowFormer by @brianhou0208 in https://github.com/huggingface/pytorch-image-models/pull/2755

New Contributors

• @chenghuichen made their first contribution in https://github.com/huggingface/pytorch-image-models/pull/2719
• @aswanth-07 made their first contribution in https://github.com/huggingface/pytorch-image-models/pull/2737
• @tandede made their first contribution in https://github.com/huggingface/pytorch-image-models/pull/2739
• @Robertboy18 made their first contribution in https://github.com/huggingface/pytorch-image-models/pull/2741
• @winklemad made their first contribution in https://github.com/huggingface/pytorch-image-models/pull/2747

Full Changelog: https://github.com/huggingface/pytorch-image-models/compare/v1.0.28...v1.0.29