Meta releases Muse Spark 1.2 and Muse Code terminal agent

Muse Spark 1.2 is a coding-focused update to Muse Spark 1.1 with scaled-up training compute on coding tasks; Muse Code (beta) is a terminal coding agent powered by it. The model beat GPT-5.5 xhigh on ErdosBench (40/226 solved) and hit SOTA on finance agent v2; Meta will soon release the weights.