Muse Spark 1.2 vs o4-mini

Meta Muse Spark 1.2OpenAI o4-mini
VendorMetaOpenAI
Context window1,048,576200,000
Max output—100,000
ReasoningYesYes
Tool callingYesYes
File inputYesYes
Inputtext, image, video, file, audiotext, image
Outputtexttext
Released2026-08-052025-04-16