From Meta AI Research · Meta Superintelligence Labs · · 50s
Muse Spark Open Launches
Meta releases first open-weight AI model for desktop use on Apple M5 Ultra.
In brief
Meta releases first open-weight AI model for desktop use on Apple M5 Ultra. Meta launched Muse Spark Open, an 816B-parameter AI model running on Apple M5 Ultra Mac Studios for coding and agentic tasks. Originally reported by Meta AI Research.
Muse Spark Open Launch
Meta releases Muse Spark Open, the most capable US open-weight model with 816B parameters for desktop use.
Desktop Performance
Runs on two Apple M5 Ultra Mac Studios with 512GB unified memory for 1M-token context windows.
Key Capabilities
Excels at coding, complex software engineering, multi-step reasoning and long-horizon tasks.
Available Platforms
Available through Baseten, Fireworks AI, Groq, Modal, Nebius, OpenRouter and Together AI.
Optimized for Apple
Uses MLX framework for best performance on Mac Studio with M5 Ultra silicon.
Safety Features
Includes safety post-training and meets Meta Superintelligence Scaling Framework thresholds.
The big picture
Meta launched Muse Spark Open, an 816B-parameter AI model running on Apple M5 Ultra Mac Studios for coding and agentic tasks.
