Meta Releases Muse Spark Open: 816B Open-Weight MoE With 1M Context

2026-10-16 05:10

Meta released Muse Spark Open, an 816B-parameter open-weight MoE model with 42B active parameters and a 1M-token context. It leads open models on MCP-Atlas and runs on 2 M5 Ultra Mac Studios.

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Meta Releases Muse Spark Open: 816B Open-Weight MoE With 1M Context

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