Muse Spark 1.3 with max reasoning, in limited preview for partners, scores 62 on the Artificial Analysis Intelligence Index, behind only Fable 5.1 and Opus 5 (@artificialanlys)
Artificial Analysis says Muse Spark 1.3 max is now testing near the top of its model rankings.
The limited-preview partner build scored 62 on the Artificial Analysis Intelligence Index, trailing only Fable 5.1 and Opus 5. Its gains over Muse Spark 1.2 were concentrated in agentic evaluations, including GDPval-AA v2, Terminal-Bench 2.1, and Tau3-Bench Banking. Artificial Analysis also said the xhigh version is the most cost-efficient model at its intelligence level under Meta's unchanged pricing. Techmeme's note
The limited-preview partner build scored 62 on the Artificial Analysis Intelligence Index, trailing only Fable 5.1 and Opus 5. Its gains over Muse Spark 1.2 were concentrated in agentic evaluations, including GDPval-AA v2, Terminal-Bench 2.1, and Tau3-Bench Banking. Artificial Analysis also said the xhigh version is the most cost-efficient model at its intelligence level under Meta's unchanged pricing. Techmeme's note
score 8