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Meta Unveils Muse Spark Open, the New Top US Open Weights Model — and It Runs on Two Paired Mac Desktops
Muse Spark Open is an 816‑billion‑parameter open‑weight model using a mixture‑of‑experts design, running on two M5 Ultra Mac Studios, supporting up to 1 million tokens and multimodal input (text, image, video, audio) but outputting only text.