Muse Spark 1.3

Muse Spark 1.3 scores 48.1 on the Artificial Analysis Intelligence Index (highest reasoning-effort setting). List price $1.25 input / $4.25 output per 1M tokens.

Overall

83.2

Input $/M

$1.25

Output $/M

$4.25

Context

1M

Released

Sep 2, 2026

Updated

Oct 3, 2026