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Meta Opens a Weaker AI Model While Keeping the Frontier Closed

Summary by TNW
Meta has published the weights for Muse Spark Open, a coding and agent model it says is less advanced than the Muse Wonder frontier model it launched on Monday. Chief AI officer Alexandr Wang said Meta will generally not open-source its most powerful models, which is the split the EU AI Act’s open-source exemption is […] This story continues at The Next Web

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Unlike the "closed models" like ChatGPT or Claude, the most advanced in the sector, accessible only via the online services of their designers, Muse Spark Open can be downloaded and modified by developers, who can use it on their own machines. The social media giant keeps closed its most advanced model, Muse Wonder, unveiled on Monday, a category of models "much larger and more advanced" than Muse Spark, from which came the newcomer, according t…

·Issy-les-Moulineaux, France
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With Muse Spark Open, Meta has introduced a new open-weight model that is aimed at developers and is intended to score points especially for programming tasks and agent-based workflows. Mark...To post: Meta: Muse Spark Open released as a new open-weight model Where you can follow us: Facebook, Reddit, Google News, X, Threads Stay up to date? Adds us to Google as the preferred source!

·Geestland, Germany
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NVIDIA broke the news on Thursday, October 15, 2026.
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