Meta open-sources Muse Spark Open: 816 billion parameters, claims it is the strongest open-source model in the US
Meta“美国最强开源”搭配苹果最强芯发布，GLM5.3和Kimi K3有对手了
AI summary
Meta releases Muse Spark Open model weights. The model has 816 billion parameters, supports a 1 million token context, is natively multimodal, and focuses on coding and agent tasks. In official tests, it scores 61.8 on JobBench, slightly higher than GLM-5.3's 61.4, but on Terminal-Bench 2.1 it scores 76.4, lower than Kimi K3's 85.0. Two Mac Studios with M5 Ultra can run it locally using the MLX framework.
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