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Meta releases Muse Spark Open, a 816B 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 is built for coding and agentic work, with 816B total and 42B active parameters, a 1M token context window, and native support for text, image, video, and audio. Guillaume Lample congratulates Meta on the release.

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@GuillaumeLample

Congrats to Meta on building the best open-weight model in the United States !

AI at Meta@AIatMeta
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
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Source: Guillaume Lample @ NeurIPS 2024 · x.comPublished · added here