Two Mac Studios, each with 512GB of unified memory: that is the Apple setup Meta is highlighting for its newly released Muse Spark Open AI model.
It is a striking desktop demonstration. It is also a rather different proposition from downloading a chatbot onto the MacBook you take to a café.
Meta announced the open-weight model on 15 October, describing it as built for coding, agentic work and multimodal tasks. The company says it has 816 billion total parameters, with 42 billion active, and a context window of one million tokens.
Those are Meta’s specifications and capability claims, rather than an independent review of how well it performs in everyday work.
Apple’s software is part of the story
The demonstration uses Apple’s MLX framework and M5 Ultra hardware. Meta says the machines work together; its announcement does not establish that an ordinary, lower-memory Mac can run the same setup comfortably.
MacRumors reports that the 512GB Mac Studio configuration is not yet available to buy. So the announcement should not be read as a Malaysian retail launch or a ready-made shopping list with confirmed local prices.
The useful distinction is between showing that a model can operate on a particular desktop configuration and showing that it is practical for everyone’s existing computer. Memory capacity, the model files and the software involved all matter.
Open weights still come with terms
Meta is releasing the model weights under its Muse Model License. MacRumors describes the commercial use terms as limited; 'open-weight' should not automatically be taken to mean unrestricted use for any business purpose.
For developers curious about the Apple tooling, the official MLX LM repository documents software for running and fine-tuning language models on Apple silicon. Its commands and supported workflows are separate from a promise that every model fits every Mac.
That makes this an interesting Apple story beyond a new phone or accessory: the Mac is being used as a platform for large-model development. Before treating the demonstration as a personal upgrade plan, check the actual hardware requirements and licence for the work you intend to do.
Sources & further reading
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