Compare Models
Muse Spark 1.2

Release Date: Aug 5, 2026

Developer Meta 🇺🇸
Context Window 1M
Max Output Tokens 131k
Token Costs (in/out) $1.25/4.25
Weights Private
Input Modalities

Accuracy

57.05 % ± 1.12

Cost / Test (Vals Index)

$ 1.662

Latency

16 min 49 s

Vals Index
BenchmarksAccuracyRankings
Vals Index

0.0%

±1.12
11/46
Code Migration

0.0%

±4.02
20/49
EMB

0.0%

±3.13
20/46
Finance Agent (v2)

0.0%

±0.28
1/49
Legal Research Bench

0.0%

±3.45
7/49
MedCode

0.0%

±2.19
16/85
MedScribe

0.0%

±1.96
2/84
MortgageTax

0.0%

±0.93
42/95
ProofBench v1.1

0.0%

±4.95
13/23
SAGE

0.0%

±3.44
24/76
Public Benefits Bench v1.1

0.0%

±1.21
3/30
TaxEval v2

0.0%

±0.76
1/140
Vibe Code Bench v1.1

0.0%

±3.31
8/84
Harvey's Legal Agent Benchmark

0.0%

±3.78
1/50
IOI

0.0%

±3.67
9/62
LegalBench

0.0%

±0.45
18/137
MMLU Pro

0.0%

±0.32
18/133
MMMU

0.0%

±0.83
20/89
SkillsBench

0.0%

±4.42
14/28
SWE-bench

0.0%

±1.52
11/83
Terminal-Bench 2.1

0.0%

±0.65
16/54
Proprietary BenchmarksAcademic BenchmarksIndustry Partners
Vals
Default Provider : Meta
Temperature: 1
Top P: Default
Top K: Default
Max Output Tokens: 131,072
Reasoning Effort: xhigh