Meta has released the Muse Spark Open open-weight model with 816 billion parameters, positioning itself against Qwen, GLM, and Kimi.
Following the Llama series, Meta returns to the open-weight space with Muse Spark Open, calling it the strongest American open-weight model. It features 816 billion parameters (with 42 billion active), supports up to one million tokens in context, and handles text, images, video, and audio.
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