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Meta Releases Open-Source Version of Most Powerful AI Model

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Meta released an open-source version of Muse Spark, while the most capable model tier people pay to access will remain closed. Zuckerberg promoted open access through a new 14-page essay and reiterated the stance amid U.S. debate over China-backed open-source AI, with OpenAI/Anthropic raising concerns and others arguing for fewer restrictions.

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