Muse Spark Open stories

Oct 15, 2026

Meta releases Muse Spark Open, 816B-parameter multimodal model with 1M token context

Meta launched Muse Spark Open, an open-weight AI model with 816 billion parameters that processes text, images, video, and audio with up to one million tokens of context. Apple partnered with Meta to optimize the model for Mac computers.

Oct 15, 20264 sources

Top claims

▪Muse Spark Open is available free to download under a commercial license requiring the label 'Built with Muse Spark Open,' while API providers earning over $20 million annually require a separate agreement
▪Meta AI chief Alexandr Wang stated that the Meta-Apple collaboration allows Meta to distribute its models widely while permitting developers to run them locally without Meta receiving prompt data or user information
▪Muse Spark Open is optimized for Apple's MLX framework and can run locally across two Mac Studio computers equipped with M5 Ultra chips and 512 GB of unified memory each

Subtopics

AI foundation models1 AI tools & products1 Long context models1 Meta1 Multimodal models1 Open weights vs closed models1 Open-source AI1

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