Meta and Apple Bring Muse Spark Open AI Model to Mac Studio

1 hour ago 3
Meta today announced the merchandise of Muse Spark Open, which it says is the "most susceptible U.S. open-weight exemplary to date."


‌Meta‌ worked with Apple to bring Muse Spark Open to the Mac, and the exemplary tin tally connected a desktop setup with 2 512GB Apple M5 Ultra Mac Studios moving the latest MLX framework. ‌Meta‌ CEO Mark Zuckerberg thanked Apple CEO John Ternus for moving with Meta.

@finkd Congrats to the team! Amazing to tally a exemplary of Muse Spark Open's caliber and standard this efficiently, close from your desk. Mac Studio keeps pushing the boundaries of on-device AI!

— John Ternus (@johnternus) October 15, 2026

Muse Spark Open has 816 cardinal full parameters with 42 cardinal progressive parameters and a 1 million-token discourse window. It is meant for coding and agentic work, and ‌Meta‌ says it excels astatine extended tasks, multi-step reasoning, and bundle engineering.

The caller Muse exemplary was tuned to tally connected Mac Studio, and ‌Meta‌ says the ‌Mac Studio‌ paired with Muse Spark Open is the "best mode to tally a almighty exemplary connected your ain desktop." From ‌Meta‌:
Apple's unified representation architecture lets the M5 Ultra's integrated GPU usage up to 512 GB per Mac Studio, truthful 2 machines tin clasp an full model. And the chip's 1.2 TB/s of representation bandwidth is accelerated capable to work the tiny portion each token needs. The effect is 2 Mac Studios behave similar 1 supercomputer with a terabyte of unified memory.
Apple hasn't released the 512GB ‌Mac Studio‌ arsenic of yet, but it's expected to beryllium coming aboriginal this month. It won't beryllium cheap, due to the fact that the 256GB ‌Mac Studio‌ is already priced implicit $10,000.

The exemplary is disposable done API platforms astatine Baseten, Fireworks AI, Groq, Modal, Nebius, OpenRouter, and Together AI, with exemplary weights downloadable from Amazon SageMaker AI, Google Cloud Model Garden, Hugging Face, and Microsoft Foundry Models. Muse Spark Open is escaped to download and has a licence allowing constricted commercialized use.

Apple and ‌Meta‌ often reason much than they enactment together, truthful it is thing of a astonishment to spot the 2 companies partnering for Muse Spark Open. "We're excited for mommy and daddy to beryllium playing bully again," ‌Meta‌'s AI main Alexandr Wang told Axios.
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