{
  "id": 14776530,
  "title": "Muse Spark Open",
  "url": "https://urgent.news/2026/10/15/muse-spark-open-14776530",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-10-15T17:47:39.000Z",
  "source": {
    "name": "Hacker News Best",
    "slug": "hacker-news-best",
    "url": "https://research.meta.ai/blog/muse-spark-open"
  },
  "original_language": "en",
  "account": "Muse Spark Open, a leading agentic model, is now available for download, marking a significant milestone in accessible AI technology. This model, boasting 816B total parameters and a 1M-token context window, is built for coding and complex software engineering tasks, setting a new standard for agentic work.\n\nMuse Spark Open is natively multimodal and has been optimized for Apple M5 Ultra Mac Studios, taking full advantage of the system's unified memory architecture and 1.2 TB/s of memory bandwidth. Running on two Mac Studios, the model behaves like a supercomputer, capable of handling massive workloads with ease.\n\nThe model is available through various API platforms including Baseten, Fireworks AI, Groq, Modal, Nebius, OpenRouter, and Together AI. Model weights are accessible on platforms like Amazon SageMaker AI, Google Cloud Model Garden, Hugging Face, and Microsoft Foundry Models. Developers can leverage PyTorch to further customize the model to their specific needs.\n\nMuse Spark Open has undergone rigorous safety evaluations, meeting stringent thresholds for release. It demonstrates strong safeguards across various risk categories, as demonstrated through real-world agentic workflows such as shipping iOS changes and reviewing video footage.\n\nThe model is released under the Muse Model License, which permits many developers to use the model for free. With the introduction of MLX adapter, running Muse Spark Open on Mac Studio is now possible. Developers are encouraged to share their creations using Muse Spark Open on the Hugging Face Forums.",
  "summary": "https://dev.meta.ai/resources/blog/build-with-muse-spark-ope... https://huggingface.co/meta-models/Muse-Spark-Open-816B-A42B https://9to5mac.com/2026/10/15/meta-launches-new-muse-spark-... Comments URL: https://news.ycombinator.com/item?id=50107379 Points: 270 # Comments: 171",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 2,
    "also_reported_by": [
      {
        "outlet": "Hacker News",
        "title": "Muse Spark Open",
        "url": "https://urgent.news/2026/10/15/muse-spark-open",
        "published": "2026-10-15T17:47:39.000Z"
      }
    ]
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}