Damn!
Looking at the results, Meta really cooked here!
More progress on frontier open models is always a big deal.
Great to see Meta going back to its roots. The only way to know this checkpoint's quality is to test it yourself.
Meta releases Muse Spark Open, its most capable US open-weight model
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Meta releases Muse Spark Open, which it calls the most capable US open-weight model to date. The model has 816B total parameters with 42B active, a 1M-token context window, and native text, image, video, and audio support. Elvis Saravia says the results look strong, but the checkpoint's quality can only be judged by testing it directly.
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@omarsar0
Today we’re releasing Muse Spark Open, the most capable US open-weight model to date. Built for coding and agentic work, it excels at long-horizon tasks, complex software engineering, and multi-step reasoning. Key Model Specs: → 816B total / 42B active parameters → 1M token context window → Natively multimodal across text, image, video, audio
Source: elvis · x.comPublished · added here