Muse Spark 1.2 Contributor vs Muse Spark 1.3

Meta Muse Spark 1.2 ContributorMeta Muse Spark 1.3
VendorMetaMeta
Context window1,048,5761,048,576
Max output——
ReasoningYesYes
Tool callingYesYes
File inputYesYes
Inputtext, image, video, file, audiotext, image, video, file
Outputtexttext
Released—2026-09-02