Meta researcher hails Muse Spark Open as the most capable open-weight US model yet

ThomasScialom · x · 2026-10-16

Meta researcher Thomas Scialom quoted the announcement with "Oups! We Did It Again," confirming the release of Muse Spark Open — billed as the most capable open-weight US model to date. The move signals Meta doubling down on open-weight releases; detailed benchmarks remain to be seen.

Related event: Meta Open-Sources Muse Spark Open: 816B-Parameter MoE with 1M Context(54 posts)→

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