Meta Muse Spark Open needs two Mac Studios to run locally

Feeds.4Sysops •IT News • October 16, 2026

Meta’s Muse Spark Open can run locally on Apple silicon—but not on a typical Mac. The optimized model needs multiple high-memory Mac Studios, while Meta’s Muse agent and its models still run in the cloud. Source

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Meta's Muse Spark Open Model Runs Locally on Mac Studios Meta has released Muse Spark Open, an 816-billion-parameter AI model designed for coding and agentic tasks, which can run locally on two Apple M5 Ultra Mac Studios using the MLX framework. This model is significant as it allows developers to utilize advanced AI capabilities without relying on cloud servers, thus enhancing data privacy. Muse Spark Open is optimized for specific workloads, including coding and long-horizon tasks, and is reportedly the largest open-weight model released by an American company this year. It features a 1-million-token context window and is available under limited commercial terms. The collaboration with Apple ensures that the model can operate efficiently on local hardware, which is a first for models of this scale. The model's performance is expected to close the gap with Chinese alternatives in the open-weight AI landscape. However, it requires substantial hardware resources, making it less accessible for typical users. 4 sources 27

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Apple Silicon Mac Studios