Upgrade pinned hf CLI to 1.26.0 for Xet-backed repos - #163
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The locked hf 1.25.1 fails on repositories migrated to Xet storage (RuntimeError: Unable to parse string as hex hash value) during nvidia/Cosmos-Guardrail1 download. hf 1.26.0 downloads the same revision cleanly (verified with a full re-download).
lfengad
approved these changes
Aug 6, 2026
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The locked hf 1.25.1 in
cosmos_framework/utils/hf_clifails on repositories migrated to Hugging Face Xet storage. Reproduced with the framework's own download path (checkpoint_db._hf_download) againstnvidia/Cosmos-Guardrail1:The action-policy inference server hard-requires that download at startup, so serving is currently broken on a fresh machine.
Change. Bump the pin to
hf==1.26.0and regenerateuv.lockwith the documented procedure from the file header (uv lock --upgrade-package hf). Two files, no code change.Validation. On a fresh 8xA100 instance, cleared the model from the HF cache and re-ran the framework's exact download command with the new lock: full 3.5 GB snapshot (102 files) downloaded clean and returned the snapshot path.
Found while validating #162 on rented hardware.