Leak: Meta's Muse Spark Open, an 816B-param open-weight model with 1M context (unverified)
mark_k · x · 2026-10-16
X user markk claims (unverified, promo image looks AI-generated) that Meta released Muse Spark Open, an open-weight model with 816B total params, 42B active, and a 1M-token context window, targeting agentic coding and long-running tasks. Weights allegedly on Hugging Face with llama.cpp/vLLM support and runnable locally on two M5 Ultra Mac Studios. Awaiting official confirmation.
Related event: Rumor: Meta to Open-Source 816B-Param Model Muse Spark Open(3 posts)→
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