Reported by 3 outlets

Meta partners with Apple to launch massive Muse Spark Open AI model optimized for Mac desktops

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Meta has released Muse Spark Open, an open-weight artificial intelligence model that the company calls the most capable of its kind built in the United States. Featuring 816 billion total parameters with 42 billion active, the natively multimodal system includes a 1-million-token context window and is available to download immediately from Hugging Face. [1][2][3]

Running the system locally requires 1TB of RAM, a threshold designed to run across Apple hardware using the latest MLX framework. Meta engineered the release so that two M5 Ultra Mac Studios equipped with 512GB of unified memory act as a single machine, or alternatively across four 256GB Mac Studios costing roughly $38,000. Apple expects the 512GB desktop model to ship in late October, though exact pricing remains unannounced. [1][2][3]

The release marks a rare public collaboration between historically frosty rivals. Meta Chief Executive Mark Zuckerberg and new Apple CEO John Ternus celebrated the launch together on social media, with Meta AI chief Alexandr Wang revealing that former Apple executive Daniel Gross helped mediate months of joint preparations. [1][3]

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3 outlets