Muse Spark 1.3 vs gpt-4.1-nano

Meta Muse Spark 1.3OpenAI gpt-4.1-nano
VendorMetaOpenAI
Context window1,048,5761,047,576
Max output—32,768
ReasoningYesNo
Tool callingYesYes
File inputYesYes
Inputtext, image, video, filetext, image
Outputtexttext
Released2026-09-022025-04-14