Compare Models
Muse Spark 1.3

Release Date: Sep 2, 2026

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

Accuracy

60.31 % ± 1.08

Cost / Test (Vals Index)

$ 2.900

Latency

21 min 17 s

Vals Index
BenchmarksAccuracyRankings
Vals Index

0.0%

±1.08
8/54
EMB

0.0%

±2.96
18/54
Finance Agent (v2)

0.0%

±0.44
4/57
Legal Research Bench

0.0%

±3.42
14/57
Tax Agent Bench

0.0%

±2.92
4/18
Vibe Code Bench v1.1

0.0%

±2.90
6/92
Harvey's Legal Agent Benchmark

0.0%

±3.48
2/58
Terminal-Bench 2.1

0.0%

±0.38
16/62
Proprietary BenchmarksAcademic BenchmarksIndustry Partners
Vals
Default Provider : Meta
Temperature: 1
Top P: Default
Top K: Default
Max Output Tokens: 131,072
Reasoning Effort: xhigh