timm author ships first CLIP model trained with both FlexiViT patch jitter and NaFlex seq-length jitter

wightmanr · x · 2026-09-06

Ross Wightman (timm) pushed a test CLIP model from OpenCLIP trial runs, believed to be the first trained with both patch size jitter (FlexiViT) and sequence length jitter (NaFlex style)—a small NaFlexViT CLIP on CC12M, compared against fixed patch size with variable sequence length. Recent timm 1.0.29 and OpenCLIP releases added patch jitter support, with timm gaining pinv-matrix prewarm caching and pre-patchified NaFlex pipeline support (flat nn.Linear embed, 5D tensors upstream).

Related event: timm Author Releases NaFlexViT CLIP Model with Dual Jitter(2 posts)→

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