{
  "slug": "lfm2-5-8b-a1b",
  "order": 76,
  "name": "LFM2.5 (8B-A1B)",
  "baseTitle": "LFM2.5 8B-A1B",
  "company": "Liquid AI",
  "country": "United States",
  "flag": "🇺🇸",
  "date": "2026-05-28",
  "decoderType": "Sparse hybrid",
  "attention": "LIV convolution blocks plus GQA and MoE",
  "layerMix": "18 LIV conv + 6 GQA + MoE FFNs",
  "scale": "8.3B total, 1.5B active (18.1% active)",
  "totalParams": 8300000000.000001,
  "activeParams": 1500000000,
  "context": "128,000",
  "contextTokens": 128000,
  "license": "LFM Open License v1.0",
  "kvCacheText": "12 KiB",
  "kvCacheKiB": 12,
  "kvCacheLevel": "Very low",
  "summary": "Liquid AI's sparse LFM2.5 model combines LIV convolution, GQA, and MoE routing with 4 of 32 experts active per token.",
  "keyDetail": "Uses 24 layers, 32 MoE experts with 4 active per token, and leaves the first two layers dense before sparse routing begins.",
  "image": {
    "full": "https://sebastianraschka.com/llm-architecture-gallery/images/architectures/lfm2-5-8b-a1b.webp",
    "thumb": "https://sebastianraschka.com/llm-architecture-gallery/images/architectures/thumbnails/lfm2-5-8b-a1b.webp",
    "alt": "Figure 1: LFM2.5 8B-A1B",
    "width": 856,
    "height": 960
  },
  "articleUrl": null,
  "links": [
    {
      "label": "config.json",
      "href": "https://huggingface.co/LiquidAI/LFM2.5-8B-A1B/blob/main/config.json",
      "title": "LiquidAI/LFM2.5-8B-A1B"
    },
    {
      "label": "License",
      "href": "https://huggingface.co/LiquidAI/LFM2.5-8B-A1B/blob/main/LICENSE",
      "title": null
    },
    {
      "label": "Tech report",
      "href": "https://www.liquid.ai/blog/lfm2-5-8b-a1b",
      "title": null
    }
  ],
  "concepts": [
    {
      "slug": "gqa",
      "label": "GQA",
      "name": "Grouped-Query Attention",
      "url": "https://llm-atlas-7or.pages.dev/concepts/gqa/"
    },
    {
      "slug": "moe",
      "label": "MoE",
      "name": "Mixture of Experts",
      "url": "https://llm-atlas-7or.pages.dev/concepts/moe/"
    }
  ],
  "aai": {
    "v4": {
      "label": "AA Intelligence Index v4.3.2",
      "total": 7.2,
      "profile": {
        "Scientific": 3.4
      },
      "url": "https://artificialanalysis.ai/models/lfm2-5-8b-a1b"
    }
  },
  "sourceUrl": "https://sebastianraschka.com/llm-architecture-gallery/#card-lfm2-5-8b-a1b",
  "family": "hybrid-moe",
  "url": "https://llm-atlas-7or.pages.dev/models/lfm2-5-8b-a1b/",
  "markdownUrl": "https://llm-atlas-7or.pages.dev/models/lfm2-5-8b-a1b.md"
}