Meta officially releases Muse Spark 1.3 with major agentic and coding upgrades

alexandr_wang · x · 2026-09-03

Meta (via chief scientist Alexandr Wang) officially released Muse Spark 1.3, available in Muse Code and the Meta Model API. The company calls it its most capable model yet — "frontier performance almost too cheap to meter" — with major gains in agentic and coding workflows plus better usability.

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