Meta open-weights Muse Spark: 816B-parameter multimodal model with 42B active

qinzytech · x · 2026-10-16

Meta has released open weights for Muse Spark, an 816B-parameter multimodal model with 42B active parameters, on Hugging Face in both BF16 and NVFP4 — pulling hundreds of downloads within hours.

Meta says the model spans visual coding, audio-video understanding, robotics, and real-world agentic workflows, framing it as multimodal reasoning grounded in action. It extends Meta's earlier Muse Glimmer 30B, a multimodal agentic model supporting GGUF and ExecuTorch for local deployment.

Related event: Meta Open-Sources Muse Spark Open: 816B-Parameter MoE with 1M Context(54 posts)→

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