{
  "id": 14965861,
  "title": "Meta Muse Open is a Top New Open Weight AI Model",
  "url": "https://urgent.news/2026/10/16/meta-muse-open-is-a-top-new-open-weight-ai-model",
  "topic": "ai",
  "section": "AI",
  "published": "2026-10-16T12:54:46.000Z",
  "source": {
    "name": "ProPakistani",
    "slug": "propakistani",
    "url": "https://propakistani.pk/2026/10/16/meta-muse-open-is-a-top-new-open-weight-ai-model/"
  },
  "original_language": "en",
  "account": "Meta has introduced Muse Spark Open, an open-weight multimodal AI model boasting 816 billion total parameters and around 42 billion active parameters per token. This model, designed for coding, tool use, and other agentic tasks, supports text, images, audio, and video inputs and generates text outputs. With a context window of up to 1,048,576 tokens, Muse Spark Open leverages a Mixture-of-Experts architecture with 256 experts per layer, activating only eight experts for each token. This design allows the model to utilize approximately 42 billion active parameters per token while retaining the capacity of its larger 816-billion-parameter system. Meta offers the model in BF16 and NVFP4 formats, along with quantized versions for various hardware. Museum Spark Open supports up to 1 million tokens of context, shared across text, images, audio, and video inputs. The model showcases its capabilities in agentic tasks, such as generating and refining 3D objects in Three.js using browser screenshots, controlling a browser from screenshots without HTML or DOM data, and aiding voice-driven shopping tasks. Notably, Muse Spark Open can run locally on Apple Silicon Macs using llama.cpp, oMLX, and mlx-lm, and on Nvidia GPUs such as H200, B200, and GB300 systems.",
  "summary": "Meta has released Muse Spark Open, an open-weight multimodal AI model with 816 billion total parameters, around 42 billion active … Read More The post Meta Muse Open is a Top New Open Weight AI Model appeared first on ProPakistani .",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "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."
}