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

Apple and Meta Partner to Run Muse Spark Open Locally on Mac Studio

KEY FACTS

  • Meta released the open-weight model Muse Spark Open, with 816 billion total parameters.
  • The model has 42 billion active parameters and a context window of 1 million tokens.
  • The model targets scenarios such as coding, agents, multi-step reasoning, and software engineering.
  • The demo used two M5 Ultra Mac Studios with 512GB of unified memory.
  • Zuckerberg and Apple CEO Ternus both confirmed the partnership on social platforms.

KEY DATA

816 billionTotal parameters
42 billionActive parameters
1 million tokensContext window
over $10,000256GB Mac Studio price

PHYSIX OBSERVATION

Apple and Meta teaming up in a rare alliance to run a hundred-billion-scale open model locally on Mac Studio shows that on-device AI is moving from concept to engineering feasibility. But two top-spec machines are costly, hard for ordinary users to afford, and in the short term remain a toy for developers and enterprises. The signal matters more than the practical value, and the giants' compromise between privacy and compute is worth watching.

Source: IT Home report