Meta Muse Spark Open: Inside the 816B Multimodal Mixture-of-Experts Architecture, NVFP4 Quantization, and Open-Weights Agentic Inference
A deep architectural breakdown of Meta Muse Spark Open: 816B total parameters, 42B active per token across 256 experts, native 1M context across text, image, audio, and video, NVFP4 Blackwell serving, and DFlash/DSpark speculative decoding.
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