{
  "slug": "smollm3-3b",
  "order": 15,
  "name": "SmolLM3 (3B)",
  "baseTitle": "SmolLM3 3B",
  "company": "Hugging Face",
  "country": "United States",
  "flag": "🇺🇸",
  "date": "2025-06-19",
  "decoderType": "Dense",
  "attention": "GQA with periodic NoPE layers",
  "layerMix": "36 GQA",
  "scale": "3B parameters",
  "totalParams": 3000000000,
  "activeParams": 3000000000,
  "context": "131,072",
  "contextTokens": 131072,
  "license": "Apache License 2.0",
  "kvCacheText": "72 KiB",
  "kvCacheKiB": 72,
  "kvCacheLevel": "Low",
  "summary": "Compact dense model that experiments with leaving out positional encodings in selected layers.",
  "keyDetail": "Every fourth layer omits RoPE to test a NoPE-style cadence.",
  "image": {
    "full": "https://sebastianraschka.com/llm-architecture-gallery/images/architectures/smollm3-3b.webp",
    "thumb": "https://sebastianraschka.com/llm-architecture-gallery/images/architectures/thumbnails/smollm3-3b.webp",
    "alt": "Figure 21: SmolLM3 3B",
    "width": 934,
    "height": 960
  },
  "articleUrl": "https://magazine.sebastianraschka.com/p/the-big-llm-architecture-comparison#%C2%A77-smollm3",
  "links": [
    {
      "label": "View in article",
      "href": "https://magazine.sebastianraschka.com/p/the-big-llm-architecture-comparison#%C2%A77-smollm3",
      "title": null
    },
    {
      "label": "config.json",
      "href": "https://huggingface.co/HuggingFaceTB/SmolLM3-3B-Base/blob/main/config.json",
      "title": "HuggingFaceTB/SmolLM3-3B-Base"
    },
    {
      "label": "Tech report",
      "href": "https://huggingface.co/blog/smollm3",
      "title": null
    }
  ],
  "concepts": [
    {
      "slug": "nope",
      "label": "NoPE",
      "name": "No Positional Embeddings",
      "url": "https://llm-atlas-7or.pages.dev/concepts/nope/"
    },
    {
      "slug": "gqa",
      "label": "GQA",
      "name": "Grouped-Query Attention",
      "url": "https://llm-atlas-7or.pages.dev/concepts/gqa/"
    }
  ],
  "aai": null,
  "sourceUrl": "https://sebastianraschka.com/llm-architecture-gallery/#card-smollm3-3b",
  "family": "dense",
  "url": "https://llm-atlas-7or.pages.dev/models/smollm3-3b/",
  "markdownUrl": "https://llm-atlas-7or.pages.dev/models/smollm3-3b.md"
}