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SmolLM

by HuggingFace

About the model:

Small open models by HuggingFace.

Model type:

Text

Model performance class:

Full

Link to the model:

https://huggingface.co/HuggingFaceTB/SmolLM3-3B

Base models:

SmolLM3-3B-Base

End model:

SmolLM3-3B

End model license:

Apache-2.0

About the organisation:

HuggingFace, a large AI platform.

Link to the organisation:

https://www.huggingface.co/

Model release date:

July 2025

Availability

Base Model Data

Data source mixture described in training config. Pretraining data sources published as part of the collection.

https://huggingface.co/datasets/HuggingFaceTB/smollm3-configs https://huggingface.co/collections/HuggingFaceTB/smollm3-pretraining-datasets-685a7353fdc01aecde51b1d9

End User Model Data

Data sources for fine-tuning provided through HuggingFace.

https://huggingface.co/datasets/HuggingFaceTB/smoltalk2

Base Model Weights

Weights for the base model freely available under Apache-2.0 license.

https://huggingface.co/HuggingFaceTB/SmolLM3-3B-Base

End User Model Weights

Weights for the fine-tuned model freely available under Apache-2.0 license.

https://huggingface.co/HuggingFaceTB/SmolLM3-3B

Training Code

Training code made available on GitHub.

https://github.com/huggingface/smollm

Documentation

Code Documentation

GitHub repository is well-documented.

https://github.com/huggingface/smollm

Hardware Architecture

Full model architecture provided on GitHub.

https://huggingface.co/datasets/HuggingFaceTB/smollm3-configs

Preprint

Release-by-blogpost, however the blogpost provides all the technical details expected of a preprint.

https://huggingface.co/blog/smollm3

Paper

No peer-reviewed paper found.

Modelcard

Model card provides the requisite information.

https://huggingface.co/HuggingFaceTB/SmolLM3-3B

Datasheet

Datasheets contain requisite information.

https://huggingface.co/datasets/HuggingFaceTB/smoltalk2 https://huggingface.co/collections/HuggingFaceTB/smollm3-pretraining-datasets-685a7353fdc01aecde51b1d9

Access

Licenses

Both base model and fine-tuned model are licensed under Apache-2.0.

https://huggingface.co/HuggingFaceTB/SmolLM3-3B-Base#license https://huggingface.co/HuggingFaceTB/SmolLM3-3B#license

Last updated 13 March 2026

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