Meta releases 816B-parameter Muse Spark Open for coding and agent work

Posted Thursday, October 15, 2026 6:20 pm

Duncan Riley (via SiliconANGLE)

Meta Platforms Inc. today released open weights for its Muse Spark artificial intelligence model, which had been proprietary since its April debut. The release, called Muse Spark Open, is built for coding and long-running agent work. Meta describes it as the most capable open-weight model to come out of a U.S. lab so far. Only […]

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