Meta Launches Open-Weight Muse Model Built to Run on Macs

· Tech · United States

Meta announced its Muse Spark Open AI model, claiming it is the most capable US open-weight model to date. The company says it is the first model in its class that can run on a desktop using two Apple M5 Ultra Mac Studios with the latest MLX framework, developed in partnership with Apple. Open-weight models let developers download and run the software locally rather than only through a cloud API, which can reduce costs and address data-privacy concerns. Meta's push comes as competition among AI labs intensifies over both model performance and the ability to run powerful models on local hardware. The launch also deepens Meta's collaboration with Apple on AI tooling.

Why it matters：A capable open-weight model that runs locally shifts the balance between cloud AI services and on-device computing, giving developers and enterprises a new option that affects how AI is deployed and monetized.

Key points

  • Meta calls Muse Spark Open the most capable US open-weight model to date.
  • It can run on two Apple M5 Ultra Mac Studios using the latest MLX framework.
  • The model was developed in partnership with Apple.

Sources (original reporting)

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