Models · Hugging Face
Safetensors is open source and contributions are welcome at every level
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★ Tier-1 Source
If you're a developer, researcher, or organization that builds on Safetensors and want to be more involved in shaping its direction, open an issue, start a discussion, or reach out to the maintainers directly.
Key facts
- They're also building first-class APIs for Tensor Parallel and Pipeline Parallel loading, so each rank or pipeline stage loads only the weights it needs
- The trademark, the repository, and the governance of the project sit with the Linux Foundation rather than any single company
- For organizations building on top of Safetensors, neutral governance under the Linux Foundation provides a stable, long-term foundation, entirely community-driven
- The format they built is intentionally simple: a JSON header with a hard limit of 100MB, describing tensor metadata, followed by raw tensor data
Summary
Safetensors started as a Hugging Face project born out of a concrete need: a way to store and share model weights that couldn't execute arbitrary code. The format they built is intentionally simple: a JSON header with a hard limit of 100MB, describing tensor metadata, followed by raw tensor data. What they didn't fully anticipate was how broadly it would be adopted. The team want Safetensors to truly belong to the community. The trademark, the repository, and the governance of the project sit with the Linux Foundation rather than any single company. The team believe safety is best guaranteed when every contributor can build on what already exists; a principle now embedded in the project's governance itself.