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Checked fact 161616 Oct 2026Models and releases

The licence is the Muse Model License, which permits use, modification, fine-tuning and distribution.

The exact words it rests on

the rights to use, copy, modify (including fine-tune), create derivative works, distill, merge, publish, distribute

What the source said when we opened it, on 16 Oct 2026.

The source

Muse Model License
Meta · 2026-10-15

Checked

Checked by the notis newsroom on , against the source above.

In the story

Meta releases open-weight Muse Spark Open under its own licence 16 Oct 2026

Cite this fact

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