Index Patch
Muse Spark 1.2 Jumps 2.7 Points From a Grader Patch Alone
Artificial Analysis Intelligence Index before vs after v4.1.1
Muse Spark 1.2 Jumps 2.7 Points From a Grader Patch Alone

Why it matters: Artificial Analysis’s Aug 6 Intelligence Index v4.1.1 grader upgrade lifted Muse Spark 1.2 (xhigh) by 2.7 points—the largest move of any model—from 54 to 57, while Claude Opus 5 still leads at 63.
View source →- Source
- Artificial Analysis
- Unit
- Intelligence Index
- Data as of
- August 6, 2026
- Scope
- Meta Muse Spark 1.2 versus Claude Opus 5 on Intelligence Index