Welcome Muse Spark Open: open-weight frontier multimodal mixture-of-experts model from Meta
Hugging Face ● Covered by 18 sources
Meta released Muse Spark Open, a large open-weight multimodal mixture-of-experts model that can take text plus images, audio, and video and run agentic coding tasks. The model is built with about 816 billion total parameters and a 1,000,000-token context window. Developers can now run, fine-tune, and deploy the model via released checkpoint formats and tooling, with modality-specific encoders and inference support updated accordingly.