A web-based platform and ecosystem for sharing machine-learning models, datasets, and demonstration applications ('Spaces'), with conventions for model cards, dataset cards, and versioned repositories.

ByCASRAI Editorial Board

· Last updated 21 May 2026

Examples

Worked examples

Is an instance
A research lab releasing fine-tuned LLM checkpoints to Hugging Face Hub with a model card README.
Is an instance
An enterprise hosting a private Hub instance with the same model-card conventions.

Counter-examples

Looks similar, but isn't

Not an instance
A model deposited only as a tarball on a personal website.
Not an instance
Source code hosted on GitHub without weights.

Editorial commentary

Hugging Face Hub has become the de facto default registry for open-weight models in NLP and increasingly across modalities. Its README-based model-card convention and 'Inference API' patterns have shaped how models are documented and consumed. This entry captures the concept of community model registries with structured documentation, not specific product features.

References

Wolf et al., 'Transformers: State-of-the-art Natural Language Processing' (EMNLP demos, 2020); Hugging Face Hub documentation.

Also known as

HF Hub · model hub

Machine-readable encodings

Use in your systems

JATS XML <role> element

xml

<role vocab="credit"
      vocab-identifier="https://casrai.org/dictionary/"
      vocab-term="Hugging Face Hub (concept)"
      vocab-term-identifier="https://casrai.org/dictionary/term/hugging-face-hub-concept" />

Schema.org DefinedTerm (JSON-LD)

json

{
  "@context": "https://schema.org",
  "@type": "DefinedTerm",
  "@id": "https://casrai.org/dictionary/term/hugging-face-hub-concept",
  "name": "Hugging Face Hub (concept)",
  "identifier": "https://casrai.org/dictionary/term/hugging-face-hub-concept",
  "description": "A web-based platform and ecosystem for sharing machine-learning models, datasets, and demonstration applications ('Spaces'), with conventions for model cards, dataset cards, and versioned repositories.",
  "inDefinedTermSet": "https://casrai.org/dictionary/domain/ai-ml-research-outputs#set",
  "url": "https://casrai.org/dictionary/term/hugging-face-hub-concept",
  "sameAs": [
    "HF Hub",
    "model hub"
  ],
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "publisher": {
    "@id": "https://casrai.org/#organization"
  },
  "dateModified": "2026-05-21T02:22:50",
  "inLanguage": "en"
}

Referenced across the research world

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