{
  "slug": "xiaomi-mimo-v2-6-flash-rl-309b",
  "order": 104,
  "name": "Xiaomi MiMo-V2.6-Flash-RL (309B)",
  "baseTitle": "Xiaomi MiMo-V2.6-Flash-RL 309B",
  "company": "Xiaomi",
  "country": "China",
  "flag": "🇨🇳",
  "date": "2026-09-21",
  "decoderType": "Sparse omnimodal MoE",
  "attention": "GQA with sliding-window/global attention",
  "layerMix": "39 sliding-window + 9 global",
  "scale": "309B total, 15B active (4.9% active)",
  "totalParams": 309000000000,
  "activeParams": 15000000000,
  "context": "1,048,576",
  "contextTokens": 1048576,
  "license": "MIT License",
  "kvCacheText": "217.5 KiB",
  "kvCacheKiB": 217.5,
  "kvCacheLevel": "High",
  "summary": "Omnimodal sparse MoE model with the MiMo-V2.5 text backbone, mixed-domain reinforcement learning, and a five-layer DFlash speculative decoder.",
  "keyDetail": "Uses 256 routed experts with top-8 routing, one dense prefix layer, no shared experts, and a 128-token sliding window.",
  "image": {
    "full": "https://sebastianraschka.com/llm-architecture-gallery/images/architectures/mimo-2.6-flash.webp",
    "thumb": "https://sebastianraschka.com/llm-architecture-gallery/images/architectures/thumbnails/mimo-2.6-flash.webp",
    "alt": "Figure 1: Xiaomi MiMo-V2.6-Flash-RL 309B",
    "width": 960,
    "height": 949
  },
  "articleUrl": null,
  "links": [
    {
      "label": "config.json",
      "href": "https://huggingface.co/XiaomiMiMo/MiMo-V2.6-Flash-RL/blob/main/config.json",
      "title": "XiaomiMiMo/MiMo-V2.6-Flash-RL"
    },
    {
      "label": "Tech report",
      "href": "https://huggingface.co/XiaomiMiMo/MiMo-V2.6-Flash-RL/resolve/main/MiMo_V2_6_technical_report.pdf",
      "title": null
    }
  ],
  "concepts": [
    {
      "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": "mtp",
      "label": "MTP",
      "name": "Multi-Token Prediction",
      "url": "https://llm-atlas-7or.pages.dev/concepts/mtp/"
    }
  ],
  "aai": {
    "v5": {
      "label": "AA Intelligence Index v5.0",
      "total": 26.7,
      "profile": {
        "Knowledge Work": 44.2,
        "Coding": 22.1,
        "Science": 14.4,
        "General": 25.9
      },
      "url": "https://artificialanalysis.ai/models/mimo-v2-6-flash"
    },
    "v4": {
      "label": "AA Intelligence Index v4.3.2",
      "total": 37.9,
      "profile": {
        "General": 32,
        "Scientific": 23.5,
        "Coding": 37,
        "Agents": 53.9
      },
      "url": "https://artificialanalysis.ai/models/mimo-v2-6-flash"
    }
  },
  "sourceUrl": "https://sebastianraschka.com/llm-architecture-gallery/#card-xiaomi-mimo-v2-6-flash-rl-309b",
  "family": "moe",
  "url": "https://llm-atlas-7or.pages.dev/models/xiaomi-mimo-v2-6-flash-rl-309b/",
  "markdownUrl": "https://llm-atlas-7or.pages.dev/models/xiaomi-mimo-v2-6-flash-rl-309b.md"
}