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

Meta Releases Open-Weight Model Muse Spark Open for Local Mac

KEY FACTS

Meta released the open-weight model Muse Spark Open on Thursday, calling it the strongest in the US.
The model has 816 billion parameters and a 1 million token context window.
The model is natively multimodal and designed for complex coding and agent tasks.
Local operation requires at least 1TB of memory, with a Mac Studio featuring the M5 Ultra chip recommended.
Meta has opened access to the model through multiple API platforms.

KEY DATA

816 billionParameter Count

1 million tokensContext Window

1TBMinimum Memory for Local Operation

PHYSIX OBSERVATION

Open-weight models are moving from the cloud to personal devices, but the 1TB memory threshold shuts most users out. Meta's move is meant to capture the mindshare of local AI development while using an open strategy to counter closed-source rivals. For the industry, the on-device large-model race has entered a dual arms race of parameters and hardware.

Source: TechCrunch report