Load HuggingFace checkpoints through a builder registry - #157
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jessegrabowski merged 24 commits intoSep 6, 2026
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Groundwork for loading Stable Diffusion XL: a config's declared class picks a builder, which constructs the graph and records the checkpoint key of every parameter as it goes, so filling the weights is a lookup. Builders for CLIP's two text encoders and GPT-2 land with it, checked against the numbers transformers computes from the same checkpoints.
📚 Documentation preview 📚: https://pytensor-ml--157.org.readthedocs.build/en/157/