{
    "author": null,
    "date_published": "2026-10-15T00:00:00.000Z",
    "dek": null,
    "direction": "ltr",
    "domain": "research.meta.ai",
    "excerpt": "Muse Spark Open is the most capable US open-weight model to date, and brings leading agentic capabilities to your desktop on Apple M5 Ultra Mac Studios.",
    "lead_image_url": "https://research.meta.ai/articles/muse-spark-open/social/muse-spark-1-2-open-weights-social-v2.webp",
    "next_page_url": null,
    "rendered_pages": 1,
    "title": "Introducing Muse Spark Open, The Most Capable US Open\u2011Weight Model to Date",
    "total_pages": 1,
    "url": "https://research.meta.ai/blog/muse-spark-open",
    "word_count": 438
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