Muse Spark Open changelog

Every change to Muse Spark Open that Modelpeers has recorded, newest first, each with the source it came from. The record starts Oct 15, 2026.

All (1)Releases (1)

October 2026

Muse Spark Open

Model at Meta

New release2w

Meta releases Muse Spark Open with open weights

Meta released Muse Spark Open, an open-weight mixture-of-experts model with about 816B total and 42B active parameters and a context window up to 1M tokens, trained for agentic coding.

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