{
  "slug": "arcee-ai-trinity-large-400b",
  "order": 32,
  "name": "Arcee AI Trinity Large (400B)",
  "baseTitle": "Arcee AI Trinity Large 400B",
  "company": "Arcee AI",
  "country": "United States",
  "flag": "🇺🇸",
  "date": "2026-01-27",
  "decoderType": "Sparse MoE",
  "attention": "GQA with gated attention and 3:1 sliding-window/global attention",
  "layerMix": "45 sliding-window + 15 global",
  "scale": "400B total, 13B active (3.3% active)",
  "totalParams": 400000000000,
  "activeParams": 13000000000,
  "context": "512,000",
  "contextTokens": 512000,
  "license": "Apache License 2.0",
  "kvCacheText": "240 KiB",
  "kvCacheKiB": 240,
  "kvCacheLevel": "High",
  "summary": "Arcee's flagship blends several efficiency tricks into a DeepSeek-like coarse MoE design; the AA score shown here refers to the Trinity Large Thinking checkpoint.",
  "keyDetail": "Combines QK-Norm, RoPE+NoPE, sandwich norm, and a coarse-grained MoE.",
  "image": {
    "full": "https://sebastianraschka.com/llm-architecture-gallery/images/architectures/arcee-ai-trinity-large-400b.webp",
    "thumb": "https://sebastianraschka.com/llm-architecture-gallery/images/architectures/thumbnails/arcee-ai-trinity-large-400b.webp",
    "alt": "Figure 53: Arcee AI Trinity Large 400B",
    "width": 944,
    "height": 960
  },
  "articleUrl": "https://magazine.sebastianraschka.com/p/the-big-llm-architecture-comparison#%C2%A720-arcee-ai-trinity-large",
  "links": [
    {
      "label": "View in article",
      "href": "https://magazine.sebastianraschka.com/p/the-big-llm-architecture-comparison#%C2%A720-arcee-ai-trinity-large",
      "title": null
    },
    {
      "label": "config.json",
      "href": "https://huggingface.co/arcee-ai/Trinity-Large-Base/blob/main/config.json",
      "title": "arcee-ai/Trinity-Large-Base"
    },
    {
      "label": "Tech report",
      "href": "https://arxiv.org/pdf/2602.17004",
      "title": null
    }
  ],
  "concepts": [
    {
      "slug": "qk-norm",
      "label": "QK-Norm",
      "name": "QK-Norm",
      "url": "https://llm-atlas-7or.pages.dev/concepts/qk-norm/"
    },
    {
      "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/"
    },
    {
      "slug": "swa",
      "label": "SWA",
      "name": "Sliding Window Attention",
      "url": "https://llm-atlas-7or.pages.dev/concepts/swa/"
    },
    {
      "slug": "moe",
      "label": "MoE",
      "name": "Mixture of Experts",
      "url": "https://llm-atlas-7or.pages.dev/concepts/moe/"
    },
    {
      "slug": "gated-attention",
      "label": "Gated Attention",
      "name": "Gated Attention",
      "url": "https://llm-atlas-7or.pages.dev/concepts/gated-attention/"
    }
  ],
  "aai": {
    "v4": {
      "label": "AA Intelligence Index v4.3.2",
      "total": 10.8,
      "profile": {
        "General": 16.6,
        "Scientific": 8.4,
        "Coding": 20.6,
        "Agents": 0.2
      },
      "url": "https://artificialanalysis.ai/models/trinity-large-thinking"
    }
  },
  "sourceUrl": "https://sebastianraschka.com/llm-architecture-gallery/#card-arcee-ai-trinity-large-400b",
  "family": "moe",
  "url": "https://llm-atlas-7or.pages.dev/models/arcee-ai-trinity-large-400b/",
  "markdownUrl": "https://llm-atlas-7or.pages.dev/models/arcee-ai-trinity-large-400b.md"
}