MetaMuse
Muse Spark Open
Spark Open is an 816B-total, 42B-active mixture-of-experts release that accepts text, images, audio and video and returns text.
What the release provides
Its context is 1,048,576 tokens. BF16 weights occupy about 1.65 TB; NVFP4 weights about 537 GB. The Muse Model License and acceptable-use policy apply. This is not a Meta Model API endpoint.Muse Spark Open architecture and release
How to use it well
Practical guidance. Plan storage, model memory and cache memory separately. A small active expert count does not make the full checkpoint small. Check the supported runtime and precision on the actual hardware before choosing a serving configuration.
Specifications & access
| Detail | Value and conditions |
|---|---|
| Access | Downloadable |
| License | Muse Model LicenseMuse Spark Open architecture and release |