Models · Updated 16 Oct, 09:51 am IST
Meta releases Muse Spark Open, an 816B open-weight model optimised for Macs

Why it matters for readers: It’s a chance to try a powerful AI model locally or via APIs and see how it handles complex coding and long documents.
- Muse Spark Open has 816 billion total parameters with 42 billion active and supports a 1 million-token context window.1234
- Meta released the model weights and made Muse Spark Open available through cloud stores and API platforms such as Hugging Face, Amazon SageMaker, Google Cloud Model Garden, Baseten and Together AI.14
- Meta says the model is natively multimodal and built for coding, agentic tasks, long‑horizon work, complex software engineering and multi‑step reasoning.1234
- Meta says Muse Spark Open can run on desktop hardware using two Apple M5 Ultra Mac Studio machines, but doing so requires very large memory (reports cite at least about 1 TB of RAM).1234
- The model is available through multiple inference engines and was paired by Meta with tools like Muse Code and deployed in agentic workflows and desktop tasks such as video editing and code fixes.124
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15 Oct, 11:17 pm · Hacker News (100+ points)
Muse Spark Open
16 Oct, 01:34 am · TechCrunch AI
Meta launches an open-weight AI model that runs on Macs
16 Oct, 07:59 am · ET Tech
Meta releases open-weight Muse Spark model for coding, agentic tasks
16 Oct, 09:51 am · The Hindu Technology
Meta releases weights for Muse Spark Open