Muse Spark is a natively multimodal reasoning model released by Meta Superintelligence Labs in April 2026, designed as a powerful personal assistant. It accepts voice, text, and image inputs, and features two reasoning modes: Contemplating mode for deep parallel multi-agent reasoning on complex problems, and Instant mode for fast everyday interactions. The model excels at visual reasoning, coding from visual specifications, and health analytics — scoring #1 globally on HealthBench Hard — and powers Meta AI across Facebook, Instagram, WhatsApp, and Messenger.
VisionReasoning|Proprietary Model
AI Performance Evaluation
Arena Overall Score
1492
±7As of 2026-04-23
Overall Rank
No.6
7,213 Votes
Arena by Ability
Hard Prompts
1512±9No.6
Expert Knowledge
1483±22No.26
Instruction Following
1468±12No.12
Conversation Memory
1505±19No.5
Creative
1463±18No.10
Coding
1533±14No.5
Math
1468±26No.17
Arena by Occupation
Creative Writing
1462±14No.11
Social Sciences
1500±17No.6
Media
1458±17No.8
Business
1496±16No.4
Healthcare
1520±27🥈 No.2
Legal
1507±26🥈 No.2
Software
1526±11No.5
Mathematics
1460±29No.26
Source:Arena Intelligence
Overall
AA Intelligence Index
52%↑14%
Reasoning & Math
GPQA Diamond
88%↑7%
HLE
40%↑23%
Coding
AA Coding Index
48%↑13%
TAU2
92%↑18%
TerminalBench
46%↑14%
SciCode
52%↑11%
Language & Instructions
IFBench
76%↑19%
AA-LCR
70%↑8%
Source:Artificial Analysis
