Partially Verified80% confidenceFactExact time
Muse Spark Open uses an MoE architecture, with 816B total parameters and 42B activated parameters.
4
Sources
80%
Confidence
Long-term
Relevance
10/15/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedMuse Spark 1.3 achieved a score of 88.8 on the Terminal-Bench 2.1 test77% similarUnverifiedMuse Spark Open has about 816 billion parameters, but only about 42 billion parameters are activated per token, while all 816 billion parameters must reside in memory at all times.74% similarUnverifiedHugging Face says Muse Spark Open runs at a speed close to that of a 42-billion-parameter model.72% similarUnverifiedThe actual retrieval accuracy of Muse Spark Open under a 1M context window has not yet been verified and requires developers to test it themselves.72% similarUnverifiedMuse is powered by Meta's in-house muse spark 1.3 model.71% similar
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