{
  "slug": "grok-2-5-270b",
  "order": 21,
  "name": "Grok 2.5 (270B)",
  "baseTitle": "Grok 2.5 270B",
  "company": "xAI",
  "country": "United States",
  "flag": "🇺🇸",
  "date": "2025-08-22",
  "decoderType": "Sparse MoE",
  "attention": "GQA",
  "layerMix": "64 GQA",
  "scale": "270B parameters",
  "totalParams": 270000000000,
  "activeParams": 270000000000,
  "context": "131,072",
  "contextTokens": 131072,
  "license": "Grok 2 Community License Agreement",
  "kvCacheText": "256 KiB",
  "kvCacheKiB": 256,
  "kvCacheLevel": "High",
  "summary": "Rare production-model release that shows an older MoE style with fewer, larger experts.",
  "keyDetail": "Adds an always-on SwiGLU path that effectively behaves like a shared expert.",
  "image": {
    "full": "https://sebastianraschka.com/llm-architecture-gallery/images/architectures/grok-2-5-270b.webp",
    "thumb": "https://sebastianraschka.com/llm-architecture-gallery/images/architectures/thumbnails/grok-2-5-270b.webp",
    "alt": "Figure 32: Grok 2.5 270B",
    "width": 960,
    "height": 878
  },
  "articleUrl": "https://magazine.sebastianraschka.com/p/the-big-llm-architecture-comparison#%C2%A710-grok-25",
  "links": [
    {
      "label": "View in article",
      "href": "https://magazine.sebastianraschka.com/p/the-big-llm-architecture-comparison#%C2%A710-grok-25",
      "title": null
    },
    {
      "label": "config.json",
      "href": "https://huggingface.co/xai-org/grok-2/blob/main/config.json",
      "title": "xai-org/grok-2"
    }
  ],
  "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": null,
  "sourceUrl": "https://sebastianraschka.com/llm-architecture-gallery/#card-grok-2-5-270b",
  "family": "moe",
  "url": "https://llm-atlas-7or.pages.dev/models/grok-2-5-270b/",
  "markdownUrl": "https://llm-atlas-7or.pages.dev/models/grok-2-5-270b.md"
}