References
- Meta — Introducing Muse Sparkabout.fb.com
Official model announcement and May update verify MSL and deployment across social apps and glasses.
- Meta — Muse Spark Openresearch.meta.ai
October 2026 announcement verifies released weights under a custom license; not described as unrestricted open source.
- Meta — FAIR turns fiveai.meta.com
Official historical research account describes FAIR and PyTorch; legacy wording does not imply PyTorch remains solely Meta-governed.
Based on public sources. If accuracy is important, verify details using the links or references.
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Reviewed July 19, 2026 · Checked for accuracy and new information.

























