Meta releases open-weight model designed for local Mac execution

Meta has introduced an open-weight model — meaning the internal weights and parameters are publicly shared for developers to inspect and run — called Muse Spark Open. Released on Thursday, the model is designed to handle complex coding tasks and autonomous agent workflows while offering native multimodal capabilities.

The model relies on 816 billion parameters — the adjustable variables that determine a model's complexity and capability — and supports a 1 million token context window, which is the amount of text the model can process at once. Evaluation results released by Meta suggest the system provides performance superior to other popular open-weight alternatives.