Hugging Face· PlatformStory of the weekOpen-weight release

SmolLM3: smol, multilingual, long-context reasoner

Hugging Face releases SmolLM3, a fully open 3B small language model that outperforms Llama-3.2-3B and Qwen2.5-3B while being competitive with larger 4B models. It supports multilingual (6 languages), long context up to 128k, and dual mode reasoning (think/no_think). The release includes a complete engineering blueprint with architecture details, data mixtures, and training methodology.

From the source

With SmolLM3, we're excited to contribute a new competitive fully open 3B model

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