Meta opens 816B-param Muse Spark Open with 42B active and 1M context on Open Math OS
AIatMeta · x · 2026-10-30
Meta announced Muse Spark Open, now live on Open Math OS: an open-weights MoE model with 816B total parameters (42B active) and a 1M-token context window. Access is currently limited to approved teams, who must apply through Open Math OS.
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