{
  "slug": "ling-2-5-1t",
  "order": 45,
  "name": "Ling 2.5 (1T)",
  "baseTitle": "Ling 2.5 1T",
  "company": "InclusionAI",
  "country": "China",
  "flag": "🇨🇳",
  "date": "2026-02-15",
  "decoderType": "Sparse hybrid",
  "attention": "Lightning Attention plus MLA",
  "layerMix": "10 MLA + 70 Lightning Attention",
  "scale": "1T total, 63B active (6.3% active)",
  "totalParams": 1000000000000,
  "activeParams": 63000000000,
  "context": "256,000",
  "contextTokens": 256000,
  "license": "MIT License",
  "kvCacheText": "11.2 KiB",
  "kvCacheKiB": 11.2,
  "kvCacheLevel": "Very low",
  "summary": "Trillion-parameter long-context model that swaps DeltaNet for Lightning Attention.",
  "keyDetail": "Uses a 7:1 linear-attention/MLA ratio and a much larger 63B active path.",
  "image": {
    "full": "https://sebastianraschka.com/llm-architecture-gallery/images/architectures/ling-2-5-1t.webp",
    "thumb": "https://sebastianraschka.com/llm-architecture-gallery/images/architectures/thumbnails/ling-2-5-1t.webp",
    "alt": "Figure 32: Ling 2.5 1T",
    "width": 960,
    "height": 923
  },
  "articleUrl": "https://magazine.sebastianraschka.com/p/a-dream-of-spring-for-open-weight#%C2%A79-ant-groups-ling-25-1t-with-lightning-attention",
  "links": [
    {
      "label": "View in article",
      "href": "https://magazine.sebastianraschka.com/p/a-dream-of-spring-for-open-weight#%C2%A79-ant-groups-ling-25-1t-with-lightning-attention",
      "title": null
    },
    {
      "label": "config.json",
      "href": "https://huggingface.co/inclusionAI/Ling-2.5-1T/blob/main/config.json",
      "title": "inclusionAI/Ling-2.5-1T"
    }
  ],
  "concepts": [
    {
      "slug": "mla",
      "label": "MLA",
      "name": "Multi-Head Latent Attention",
      "url": "https://llm-atlas-7or.pages.dev/concepts/mla/"
    },
    {
      "slug": "hybrid-attention",
      "label": "Hybrid Attention",
      "name": "Hybrid Attention",
      "url": "https://llm-atlas-7or.pages.dev/concepts/hybrid-attention/"
    }
  ],
  "aai": null,
  "sourceUrl": "https://sebastianraschka.com/llm-architecture-gallery/#card-ling-2-5-1t",
  "family": "hybrid-moe",
  "url": "https://llm-atlas-7or.pages.dev/models/ling-2-5-1t/",
  "markdownUrl": "https://llm-atlas-7or.pages.dev/models/ling-2-5-1t.md"
}