Noometry

Model comparison

Grok 3 vs Muse Spark 1.2

Muse Spark 1.2 is the stronger model overall, scoring 50.3 to 39.9 on the Noometry Index.

Last verified . 18 shared benchmarks.

Grok 3 xAI

39.9

Rank #157 Confirmed

Muse Spark 1.2 Meta

50.3

Rank #48 Confirmed

Summary

  • They share 18 benchmarks with published results for both. Grok 3 scores higher in 1 category and Muse Spark 1.2 in 8 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Muse Spark 1.2 leads 51.3 to 13.7.
  • The biggest single-benchmark swing is SimpleBench: 36.1% for Grok 3 and 74.5% for Muse Spark 1.2.

Side by side

Grok 3Muse Spark 1.2
ProviderxAIMeta
Noometry Index39.950.3
Released2025-04-092026-08-05
WeightsProprietaryProprietary
Context window—1.05M
Max output—131K
Input $ / M tokens—$1.25
Output $ / M tokens—$4.25
Results tracked4031

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Category by category

Coding Muse Spark 1.2 leads

Grok 3: 41.9 (#115), Muse Spark 1.2: 49.2 (#51)

BenchmarkGrok 3Muse Spark 1.2
WeirdML37.2%60.3%
LMArena Coding14321495
DeepSWE—54.9%
Aider Polyglot53.3%—
LMArena WebDev—1533
FrontierSWE—12%
SciCode—56.4%

Agentic & Tool Use Grok 3 leads

Grok 3: 30.5 (#76), Muse Spark 1.2: 29.4 (#87)

BenchmarkGrok 3Muse Spark 1.2
APEX-Agents—36.4%
BALROG29.5%—
GDP.pdf—16%

Reasoning Muse Spark 1.2 leads

Grok 3: 13.7 (#333), Muse Spark 1.2: 51.3 (#34)

BenchmarkGrok 3Muse Spark 1.2
SimpleBench36.1%74.5%
LMArena Hard Prompts14341486
Epoch Capabilities Index138.33154.87
ARC-AGI-20%—
Kagi LLM Benchmark61.3%—
NYT Connections (extended)—79.2%
ARC-AGI-15.5%—
CritPt—17.7%
DTBench—94.7%
LMCA—48.4%

Math Muse Spark 1.2 leads

Grok 3: 38.0 (#145), Muse Spark 1.2: 46.4 (#70)

BenchmarkGrok 3Muse Spark 1.2
LMArena Math13911471
OTIS Mock AIME 2024-202555.6%—
ProofBench—43%
Omni-MATH46.4%—
MATH Level 588.7%—
FrontierMath (Feb 2025 set)3.8%—
FrontierMath Tier 4 (v1)0%—

Knowledge Muse Spark 1.2 leads

Grok 3: 46.2 (#82), Muse Spark 1.2: 54.1 (#53)

BenchmarkGrok 3Muse Spark 1.2
LMArena Expert14211480
GPQA Diamond75.8%—
SimpleQA Verified—60.3%
MMLU-Pro78.8%—
Confabulations14.2%—
Vectara Hallucination Rate5.8%—
GPQA (HELM)65%—

Multimodal Not comparable

Grok 3: —, Muse Spark 1.2: 43.4 (#25)

BenchmarkGrok 3Muse Spark 1.2
LMArena Vision—1305

Multilingual Muse Spark 1.2 leads

Grok 3: 52.3 (#87), Muse Spark 1.2: 57.1 (#11)

BenchmarkGrok 3Muse Spark 1.2
LMArena Non-English14101478
LMArena Chinese14481511
LMArena French14601513
LMArena Russian14161487
LMArena Spanish14171498
LMArena German1431—
LMArena Japanese1387—
LMArena Korean1373—

Instruction Following Muse Spark 1.2 leads

Grok 3: 75.0 (#73), Muse Spark 1.2: 76.7 (#36)

BenchmarkGrok 3Muse Spark 1.2
LMArena Instruction Following14091461
IFEval88.4%—

Long Context Muse Spark 1.2 leads

Grok 3: 38.7 (#192), Muse Spark 1.2: 45.2 (#48)

BenchmarkGrok 3Muse Spark 1.2
LMArena Longer Query14391475
Fiction.LiveBench58.3%—

Writing & Preference Muse Spark 1.2 leads

Grok 3: 55.8 (#141), Muse Spark 1.2: 72.3 (#14)

BenchmarkGrok 3Muse Spark 1.2
LMArena Text14261482
LMArena Creative Writing14141449
EQ-Bench Creative Writing11861840
LMArena Multi-Turn14251494
Short-Story Creative Writing76.4%—
WildBench84.9%—

Frequently asked questions

Is Grok 3 better than Muse Spark 1.2?

Muse Spark 1.2 is the stronger model overall, scoring 50.3 to 39.9 on the Noometry Index.

Is Grok 3 or Muse Spark 1.2 better for coding?

Muse Spark 1.2 scores higher on coding benchmarks: 49.2 versus 41.9 in the Noometry coding category.

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

18 benchmarks have published results for both models. Grok 3 has 40 scored results on Noometry and Muse Spark 1.2 has 31.

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