Morning Edition · Sunday, June 28, 2026Published at 7:02 AM EDT · New York

Meta's Muse Spark Shows the Efficiency Turn in Frontier Models, and a Break From Open Weights

Meta Superintelligence Labs says its first model matches the capability of Llama 4 Maverick at over an order of magnitude less compute, and unlike Llama it is closed.

Muse Spark is the first model from Meta Superintelligence Labs, the unit assembled under chief AI officer Alexandr Wang after Meta paid roughly 14.3 billion dollars for a stake in Scale AI. Meta describes it as a natively multimodal reasoni…