SmolLM
Family overview — summarizes releases; licenses and availability belong to each release.
Maintained by Hugging Face (Smol Models Research, HuggingFaceTB)13
SmolLM is Hugging Face's series of small language models. The first SmolLM release (July 2024) came in 135M, 360M, and 1.7B sizes; SmolLM2 kept those three sizes, with the 1.7B model trained on about 11 trillion tokens (paper February 2025); and SmolLM3 (July 2025) is a 3B model released as base and instruct checkpoints, with a dual-mode reasoning instruct model. The SmolVLM vision-language models are maintained in the same repository.45261
- Repository: huggingface/smollm repository (external site: github.com)
- Release notes: SmolLM3 blog post (external site: huggingface.co)
- Paper: SmolLM2 paper (arXiv 2502.02737) (external site: arxiv.org)
- Model hub: HuggingFaceTB on Hugging Face (external site: huggingface.co)
Releases assessed
| Release | Weights | Tier (USASI rubric v0.1) | License | Released |
|---|---|---|---|---|
| SmolLM3 3B | Weights: Public | Model-disclosure tier (USASI rubric v0.1): Fully open | Apache-2.0, Apache-2.0, Apache-2.0 | Jul 8, 2025 |
What it is useful for
Organization context
Provenance and derivatives
Trained from scratch by Hugging Face on public datasets. SmolLM used the SmolLM-Corpus (Cosmopedia v2, synthetic textbooks and stories generated with Mixtral; FineWeb-Edu; and Python-Edu, filtered from The Stack); SmolLM2 added the FineMath, Stack-Edu, and SmolTalk datasets; SmolLM3's pretraining mix includes FineWeb-Edu, DCLM, FineWeb-2, FineMath, and Stack-Edu among other public datasets.4578
- Derived from: FineWeb-Edu (subset of FineWeb) — Educational web subset filtered from FineWeb; used across SmolLM generations.
U.S. eligibility
Eligible · basis: U.S. headquarters
The models are published by Hugging Face's HuggingFaceTB organization ("Hugging Face Smol Models Research") and documented in Hugging Face's GitHub repository. Hugging Face's terms of service identify Hugging Face, Inc., a Delaware corporation, as the provider of its services, and its privacy policy states that the company is located in the United States. See the hugging-face organization record for the dual-country assessment. Eligibility of each release is assessed on the release record.31910
Sources
This listing is not an endorsement, a safety assessment, or a federal approval.