Noometry

Model comparison

Grok-3 mini vs Muse Spark 1.2

Muse Spark 1.2 is the stronger model overall, scoring 50.3 to 41.2 on the Noometry Index.

Last verified . 16 shared benchmarks.

Grok-3 mini xAI

41.2

Rank #141 Confirmed

Muse Spark 1.2 Meta

50.3

Rank #48 Confirmed

Summary

  • They share 16 benchmarks with published results for both. Grok-3 mini scores higher in 1 category and Muse Spark 1.2 in 7 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Muse Spark 1.2 leads 51.3 to 13.6.
  • The biggest single-benchmark swing is WeirdML: 42.6% for Grok-3 mini and 60.3% for Muse Spark 1.2.

Side by side

Grok-3 miniMuse Spark 1.2
ProviderxAIMeta
Noometry Index41.250.3
Released2025-04-092026-08-05
WeightsProprietaryProprietary
Context window—1.05M
Max output—131K
Input $ / M tokens—$1.25
Output $ / M tokens—$4.25
Results tracked3531

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Category by category

Coding Muse Spark 1.2 leads

Grok-3 mini: 40.8 (#131), Muse Spark 1.2: 49.2 (#51)

BenchmarkGrok-3 miniMuse Spark 1.2
WeirdML42.6%60.3%
LMArena Coding13791495
DeepSWE—54.9%
Aider Polyglot49.3%—
LMArena WebDev—1533
FrontierSWE—12%
SciCode—56.4%

Agentic & Tool Use Not comparable

Grok-3 mini: —, Muse Spark 1.2: 29.4 (#87)

BenchmarkGrok-3 miniMuse Spark 1.2
APEX-Agents—36.4%
GDP.pdf—16%

Reasoning Muse Spark 1.2 leads

Grok-3 mini: 13.6 (#334), Muse Spark 1.2: 51.3 (#34)

BenchmarkGrok-3 miniMuse Spark 1.2
LMArena Hard Prompts13751486
Epoch Capabilities Index140.35154.87
ARC-AGI-20.4%—
SimpleBench—74.5%
Kagi LLM Benchmark61.3%—
NYT Connections (extended)—79.2%
ARC-AGI-116.5%—
CritPt—17.7%
DTBench—94.7%
LMCA—48.4%

Math Muse Spark 1.2 leads

Grok-3 mini: 42.1 (#85), Muse Spark 1.2: 46.4 (#70)

BenchmarkGrok-3 miniMuse Spark 1.2
LMArena Math13861471
OTIS Mock AIME 2024-202577.8%—
ProofBench—43%
Omni-MATH31.8%—
MATH Level 590.9%—
FrontierMath (Feb 2025 set)5.9%—

Knowledge Muse Spark 1.2 leads

Grok-3 mini: 46.4 (#81), Muse Spark 1.2: 54.1 (#53)

BenchmarkGrok-3 miniMuse Spark 1.2
LMArena Expert13951480
GPQA Diamond76.3%—
SimpleQA Verified—60.3%
MMLU-Pro79.9%—
Confabulations10.8%—
GPQA (HELM)67.5%—

Multimodal Not comparable

Grok-3 mini: —, Muse Spark 1.2: 43.4 (#25)

BenchmarkGrok-3 miniMuse Spark 1.2
LMArena Vision—1305

Multilingual Muse Spark 1.2 leads

Grok-3 mini: 48.1 (#145), Muse Spark 1.2: 57.1 (#11)

BenchmarkGrok-3 miniMuse Spark 1.2
LMArena Non-English13521478
LMArena Chinese13871511
LMArena French13571513
LMArena Russian13531487
LMArena Spanish13811498
LMArena German1349—
LMArena Japanese1342—
LMArena Korean1335—

Instruction Following Grok-3 mini leads

Grok-3 mini: 78.5 (#9), Muse Spark 1.2: 76.7 (#36)

BenchmarkGrok-3 miniMuse Spark 1.2
LMArena Instruction Following13571461
IFEval95.1%—

Long Context Muse Spark 1.2 leads

Grok-3 mini: 41.0 (#147), Muse Spark 1.2: 45.2 (#48)

BenchmarkGrok-3 miniMuse Spark 1.2
LMArena Longer Query13721475
Fiction.LiveBench66.7%—

Writing & Preference Muse Spark 1.2 leads

Grok-3 mini: 52.5 (#169), Muse Spark 1.2: 72.3 (#14)

BenchmarkGrok-3 miniMuse Spark 1.2
LMArena Text13701482
LMArena Creative Writing13421449
LMArena Multi-Turn13551494
Short-Story Creative Writing73.5%—
EQ-Bench Creative Writing—1840
WildBench65.1%—

Frequently asked questions

Is Grok-3 mini better than Muse Spark 1.2?

Muse Spark 1.2 is the stronger model overall, scoring 50.3 to 41.2 on the Noometry Index.

Is Grok-3 mini or Muse Spark 1.2 better for coding?

Muse Spark 1.2 scores higher on coding benchmarks: 49.2 versus 40.8 in the Noometry coding category.

How many benchmarks do Grok-3 mini and Muse Spark 1.2 share?

16 benchmarks have published results for both models. Grok-3 mini has 35 scored results on Noometry and Muse Spark 1.2 has 31.

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