Muse Spark 1.1 vs Grok 4.20 Multi-Agent

Meta Muse Spark 1.1xAI Grok 4.20 Multi-Agent
VendorMetaxAI
Context window1,048,5762,048,000
Max output—1,000,000
ReasoningYesYes
Tool callingYesYes
File inputYesYes
Inputtext, image, video, file, audiotext, image
Outputtexttext
Released2026-07-092026-03-09