{
  "api_version": "1",
  "updated": "2026-10-19",
  "latest_event": "2026-10-18",
  "rights": "© Frontier Log, all rights reserved.",
  "event": {
    "slug": "2026-10-15-muse-spark-open",
    "date": "2026-10-15",
    "lab": "meta",
    "kind": "model",
    "importance": "major",
    "title": "Muse Spark Open",
    "detail": "Open weights of Muse Spark: an 816B mixture-of-experts (MoE) model, 42B active, with a 1M-token context.",
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      "open-weights"
    ],
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      {
        "slug": "2026-09-02-muse-spark-1-3",
        "date": "2026-09-02",
        "lab": "meta",
        "title": "Muse Spark 1.3",
        "url": "https://frontierlog.ai/event/2026-09-02-muse-spark-1-3"
      }
    ],
    "source": "https://dev.meta.ai/resources/blog/build-with-muse-spark-open",
    "source_title": "Build with Muse Spark Open",
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    "url": "https://frontierlog.ai/event/2026-10-15-muse-spark-open",
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