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Meta Makes a Strong Open Source Comeback: New 816B Large AI Model Runs Seamlessly ...
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Fusion42 · 16 October 2026 · Fusion42 review
Meta has released Muse Spark Open, an 816-billion-parameter open-source multimodal AI model optimized for running on two Apple M5 Ultra Mac Studio units, marking a notable collaboration between Meta and Apple despite their historically distant relationship. The model targets coding and complex reasoning tasks and is designed for local device operation leveraging Apple's unified memory architecture.
This Wire brief sits within Fusion42's coverage of AI & ML, and 15 sources have reported it between 15 Oct 2026 and 16 Oct 2026.
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Your AI tools can now tap the performance of Meta’s advanced model directly on Apple Silicon machines. If you build software for coding or reasoning, testing Muse Spark Open on Macs could cut infrastructure costs while boosting user autonomy.
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15 sources · first reported 15 Oct 2026 · latest 16 Oct 2026
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