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Physix Frontier · News Briefing Card (TheVerge · Oct 16, 2026)

Meta Launches Muse Spark Open, Optimized for Mac with Apple

KEY FACTS

  • Meta released the Muse Spark Open model, calling it the strongest open-weight model from the US to date.
  • The model can run locally on two Mac Studios equipped with M5 Ultra chips.
  • Meta partnered with Apple to optimize the model's performance on Mac using the MLX framework.
  • Apple CEO John Ternus publicly congratulated the release, and the two CEOs showed mutual support on social media.
  • The model is natively multimodal, with 816 billion total parameters, and excels at long tasks and software engineering.

KEY DATA

816 billionTotal parameters
Two M5 Ultra Mac StudiosRequired hardware

PHYSIX OBSERVATION

Meta and Apple have joined forces in a rare alliance to squeeze a large model into desktop devices, sending a clear signal: open-weight models are moving from the cloud to local machines. For users, high-end Macs could become personal workstations for running large models; for the industry, Apple is using the MLX ecosystem to court AI vendors, which could reshape the competitive landscape of on-device AI.

Source: TheVerge report