Compare / Muse Spark 1.2 vs Muse Spark 1.3

Muse Spark 1.2 vs Muse Spark 1.3

22 results from 4 sources that measured both models. Each row is in the source's own units; there is no overall winner.

Muse Spark 1.2
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Muse Spark 1.3
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Results compared
22
Shared sources
4
BenchmarkMetricMuse Spark 1.2Muse Spark 1.3
APEX-AgentsreportedTasks passed% of tasks 36.4%57.8%
Arena (formerly LMArena)reportedConfirmed task successIPS effect estimate -0.050.08
Arena (formerly LMArena)reportedPraise over complaintIPS effect estimate -0.120.04
Arena (formerly LMArena)reportedSteerabilityIPS effect estimate -0.050.02
Arena (formerly LMArena)reportedTool groundingIPS effect estimate 0.000.00
Arena (formerly LMArena)reportedOverallArena rating 1,4841,479
Arena (formerly LMArena)reportedBusiness, management and financeArena rating 1,5191,506
Arena (formerly LMArena)reportedCreative writingArena rating 1,4481,450
Arena (formerly LMArena)reportedExpert promptsArena rating 1,5021,527
Arena (formerly LMArena)reportedInstruction followingArena rating 1,4751,486
Arena (formerly LMArena)reportedOverallArena rating 1,4961,494
Arena (formerly LMArena)reportedWriting, literature and languageArena rating 1,4721,466
Artificial AnalysisreportedArtificial Analysis Coding Indexindex score 72.276.5
Artificial AnalysisreportedArtificial Analysis Intelligence Indexindex score 39.648.1
Artificial AnalysisreportedGPQA Diamond% of questions 90.4%94.1%
Artificial AnalysisreportedHumanity's Last Exam% of questions 45.5%48.7%
Artificial AnalysisreportedLong-context reasoning (AA-LCR)% of questions 79.0%83.0%
Artificial AnalysisreportedSciCode% of problems 57.4%59.7%
Artificial AnalysisreportedTerminal-Bench 2.1% of tasks 80.2%85.4%
Artificial AnalysisreportedTerminal-Bench 4.0% of tasks 7.1%33.3%
Artificial AnalysisreportedΤ-bench banking% of tasks 34.8%50.5%
GDP.pdfreportedProfessional document tasks% of rubric 16.0%27.6%

Bold green marks the better value on that metric. Where a source reports ranges that overlap, the difference may not be meaningful; see the benchmark page for ranges.