Meta will release Muse Spark 1.3 to public

Meta will release Muse Spark 1.3 or higher and open it to the general public by September 30, 2026. The move will follow Meta’s August 5, 2026 launch of Muse Spark 1.2 and its simultaneous rollout of the Muse Code coding agent, and it will overturn the API-only, closed weights approach that defined…