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Muse Spark

Meta · 2026-04-08

Muse Spark is Meta's first model from Meta Superintelligence Labs, announced in April 2026. It is a natively multimodal reasoning model with tool-use, visual chain-of-thought, and multi-agent orchestration support, aimed at multimodal perception, reasoning, health, and agentic tasks. Meta made it available through meta.ai and the Meta AI app with a private API preview rather than releasing open weights.

Benchmark scores

BenchmarkScore
AA-Briefcase Elo641
AA-LCR69.7
AA-Omniscience Index4.1
AIME 2024 (avg@8)96.7
AIME 2024-202596.9
AIME 2025 (avg@8)97.1
Arena Document (Style Controlled)1466
Arena Text — Business, Management & Financial Ops (No Style Control)1463
Arena Text — Chinese (No Style Control)1505
Arena Text — Creative Writing (No Style Control)1458
Arena Text — English (No Style Control)1480
Arena Text — Entertainment, Sports & Media (No Style Control)1449
Arena Text — Exclude Ties (No Style Control)1478
Arena Text — Exclude Ties (Style Controlled)1500
Arena Text — Expert (No Style Control)1455
Arena Text — French (No Style Control)1502
Arena Text — French (Style Controlled)1526
Arena Text — German (No Style Control)1494
Arena Text — Hard Prompts (No Style Control)1474
Arena Text — Hard Prompts English (No Style Control)1476
Arena Text — Instruction Following (No Style Control)1442
Arena Text — Korean (No Style Control)1460
Arena Text — Legal & Government (No Style Control)1490
Arena Text — Life, Physical & Social Science (No Style Control)1478
Arena Text — Longer Query (No Style Control)1449
Arena Text — Medicine & Healthcare (No Style Control)1483
Arena Text — Multi-turn (No Style Control)1477
Arena Text — Non-English (No Style Control)1463
Arena Text — Non-English (Style Controlled)1477
Arena Text — Occupational Mathematical (No Style Control)1454
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