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    Meta releases Muse Spark Open, an open-weight model with 816B total parameters

    Techmeme, citing CNBC, reports Meta says it worked with Apple to run the model locally on M5 Ultra Mac Studios.

    Matt DeitkeMD
    TechmemeTE
    🚨 AI News | TestingCatalog🚨A
    11 Sources, 1h ago, first seen 1h ago

    TLDR

    Techmeme reports Meta released Muse Spark Open with 816B total parameters, 42B active parameters and a 1M-token context window. Meta calls it the most capable US open-weight model. Techmeme, citing CNBC, relays Meta's claim that it worked with Apple to run the model locally on M5 Ultra Mac Studios and that users can pair two to four Studios for coding or agentic work. The New Stack says its license isn't fully open.

    Combined views

    64.9K

    11 Sources, first seen 1h ago

    1.2K likes91 comments135 saves65 reposts

    Combined views

    64.9K

    11 Sources, first seen 1h ago

    1.2K likes91 comments135 saves65 reposts
    Introducing Muse Spark Open, The Most Capable US Open‑Weight Model to Date
    Image: Meta AI Research (research.meta.ai)

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    14 Sources

    Meta AI ResearchIntroducing Muse Spark Open, The Most Capable US Open‑Weight Model to Date18h
    huggingfacemeta-models/Muse-Spark-Open-816B-A42B · Hugging Face
    The New StackMeta ships Muse Spark Open, its answer to China’s best open-weight models1h
    Matt Deitke@mattdeitkeWe're open-sourcing Muse Spark Open! This is an important release which is the most capable US open-weight model yet. 🇺🇸 - 816B parameters (42B active) - 1M token context window - Built for coding and long-horizon agents - Runs locally on two Apple M5 Ultra Mac Studios More here: https://research.meta.ai/blog/muse-spark-open1h
    Techmeme@TechmemeMeta releases Muse Spark Open, saying it is the most capable US open-weight model, with 816B total and 42B active parameters and a 1M-token context window (Meta AI Research) (Visit Techmeme dot com for the link and full context!)1h
    🚨 AI News | TestingCatalog@testingcatalogBREAKING 🔥: Meta is about to drop Muse Spark Open, an open weight version of Muse Spark 1.2! It is teased to be the best open model from US and users will be able to run it locally on new Mac Studio devices.1h
    merve@mervenoyannMeta is releasing Muse Spark Open as the most-capable US open-weight model.. 🥁 and it's an agent focused MoE that takes all modalities 🔥 Welcoming the model to Hub with day-0 support in transformers and llama.cpp 🤗 https://huggingface.co/blog/meta-muse-spark-open1h
    Armand Joulin@armandjoulincongratulations @AIatMeta this is amazing to see you back in open model space with such an amazing model!1h
    clem 🤗@ClementDelangueMeta is back! https://huggingface.co/meta-models/Muse-Spark-Open-816B-A42B1h
    Aaron Levie@levieThey did it. They made a Muse open weights model, which is a huge step forward for OSS in the US. This is going to further accelerate AI diffusion because enterprises will be able to mix and match frontier performance for orchestration and high end tasks, while being able to have low cost and tailored post trained models for repeatable workflows. Overall this dramatically increases token consumption and workloads across the stack. Great to see Meta doing this.1h
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    14 Sources

    Meta AI ResearchIntroducing Muse Spark Open, The Most Capable US Open‑Weight Model to Date18h
    huggingfacemeta-models/Muse-Spark-Open-816B-A42B · Hugging Face
    The New StackMeta ships Muse Spark Open, its answer to China’s best open-weight models1h
    Matt Deitke@mattdeitkeWe're open-sourcing Muse Spark Open! This is an important release which is the most capable US open-weight model yet. 🇺🇸 - 816B parameters (42B active) - 1M token context window - Built for coding and long-horizon agents - Runs locally on two Apple M5 Ultra Mac Studios More here: https://research.meta.ai/blog/muse-spark-open1h
    Techmeme@TechmemeMeta releases Muse Spark Open, saying it is the most capable US open-weight model, with 816B total and 42B active parameters and a 1M-token context window (Meta AI Research) (Visit Techmeme dot com for the link and full context!)1h
    🚨 AI News | TestingCatalog@testingcatalogBREAKING 🔥: Meta is about to drop Muse Spark Open, an open weight version of Muse Spark 1.2! It is teased to be the best open model from US and users will be able to run it locally on new Mac Studio devices.1h
    merve@mervenoyannMeta is releasing Muse Spark Open as the most-capable US open-weight model.. 🥁 and it's an agent focused MoE that takes all modalities 🔥 Welcoming the model to Hub with day-0 support in transformers and llama.cpp 🤗 https://huggingface.co/blog/meta-muse-spark-open1h
    Armand Joulin@armandjoulincongratulations @AIatMeta this is amazing to see you back in open model space with such an amazing model!1h
    clem 🤗@ClementDelangueMeta is back! https://huggingface.co/meta-models/Muse-Spark-Open-816B-A42B1h
    Aaron Levie@levieThey did it. They made a Muse open weights model, which is a huge step forward for OSS in the US. This is going to further accelerate AI diffusion because enterprises will be able to mix and match frontier performance for orchestration and high end tasks, while being able to have low cost and tailored post trained models for repeatable workflows. Overall this dramatically increases token consumption and workloads across the stack. Great to see Meta doing this.1h
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