Muse Spark Open · model releaseMuse Spark Open

validasserted

Valid from: 2026-10-15
Valid until: still holds
Published: 2026-10-15
Recorded by AsOf: 2026-11-04
Checked: 2026-11-04 · its source page states the value and the date
Confidence: 0.95

Sources

“Introducing Muse Spark Open, The Most Capable US Open‑Weight Model to Date October 15, 2026”— what the page says, read 2026-11-04

https://research.meta.ai/blog/muse-spark-openprimary · research.meta.ai · 2026-10-15

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