Noometry

Model comparison

Grok 4 vs Grok 4.6

Grok 4.6 is the stronger model overall, scoring 56.9 to 48.1 on the Noometry Index.

Last verified . 26 shared benchmarks.

Grok 4 xAI

48.1

Rank #56 Confirmed

Grok 4.6 xAI

56.9

Rank #21 Confirmed

Summary

  • They share 26 benchmarks with published results for both. Grok 4 scores higher in 2 categories and Grok 4.6 in 8 categories; 10 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Grok 4.6 leads 61.4 to 36.7.
  • The biggest single-benchmark swing is ARC-AGI-2: 16% for Grok 4 and 67.1% for Grok 4.6.

Side by side

Grok 4Grok 4.6
ProviderxAIxAI
Noometry Index48.156.9
Released2025-07-092026-08-12
WeightsProprietaryProprietary
Context window—500K
Max output—500K
Input $ / M tokens—$2
Output $ / M tokens—$6
Results tracked4849

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Category by category

Coding Grok 4.6 leads

Grok 4: 50.3 (#46), Grok 4.6: 58.5 (#16)

BenchmarkGrok 4Grok 4.6
WeirdML45.7%67.3%
LMArena Coding14081465
DeepSWE—67.5%
FrontierCode—48%
Aider Polyglot79.6%—
CursorBench—41.4%
LMArena WebDev—1617
FrontierSWE—25.3%
SciCode—56.5%
ALE-Bench—1,508

Agentic & Tool Use Grok 4.6 leads

Grok 4: 32.3 (#68), Grok 4.6: 39.4 (#27)

BenchmarkGrok 4Grok 4.6
Terminal-Bench27.2%—
APEX-Agents—65.3%
Berkeley Function Calling Leaderboard63%—
GDPval21.1%—
Cybench43%—
DeepResearch Bench47.3%—
BALROG43.6%—
GDP.pdf—17.2%
LMArena Search1142—
METR Time Horizons66.6%—
Vending-Bench 2—9,047

Reasoning Grok 4.6 leads

Grok 4: 36.7 (#65), Grok 4.6: 61.4 (#20)

BenchmarkGrok 4Grok 4.6
ARC-AGI-216%67.1%
SimpleBench60.5%75.9%
ARC-AGI-166.7%87.5%
Chess Puzzles28%40%
LMArena Hard Prompts14091447
Epoch Capabilities Index146.44156.44
Kagi LLM Benchmark73.6%—
NYT Connections (extended)—80%
CritPt—19.7%
EBR-Bench—30.5%
Mystery Game Puzzles—34%
DTBench—97.3%
LMCA—48.5%
ForecastBench60.9—

Math Grok 4.6 leads

Grok 4: 48.4 (#64), Grok 4.6: 67.0 (#24)

BenchmarkGrok 4Grok 4.6
OTIS Mock AIME 2024-202584%99.2%
LMArena Math14221423
FrontierMath (Tiers 1-3)—66%
FrontierMath Tier 4—31.7%
ProofBench—51%
Omni-MATH60.3%—
FrontierMath (Feb 2025 set)19.7%—
FrontierMath Tier 4 (v1)2.1%—

Knowledge Grok 4.6 leads

Grok 4: 53.8 (#55), Grok 4.6: 63.3 (#20)

BenchmarkGrok 4Grok 4.6
GPQA Diamond87%94%
LMArena Expert14151467
SimpleQA Verified—49.3%
MMLU-Pro85.1%—
Confabulations12.4%—
GPQA (HELM)72.7%—

Multimodal Grok 4.6 leads

Grok 4: 33.7 (#94), Grok 4.6: 43.6 (#23)

BenchmarkGrok 4Grok 4.6
LMArena Vision12101263
GeoBench45%—
Blueprint-Bench 2—33.2%
Furniture Assembly—40%
LMArena Document—1452

Multilingual Grok 4.6 leads

Grok 4: 51.8 (#103), Grok 4.6: 53.0 (#74)

BenchmarkGrok 4Grok 4.6
LMArena Non-English14031420
LMArena Chinese14271480
LMArena French14181461
LMArena German14291431
LMArena Japanese13941376
LMArena Korean13771397
LMArena Russian14101422
LMArena Spanish14201404

Instruction Following Grok 4 leads

Grok 4: 79.2 (#5), Grok 4.6: 75.4 (#63)

BenchmarkGrok 4Grok 4.6
LMArena Instruction Following13871431
IFEval94.9%—

Long Context Grok 4 leads

Grok 4: 63.1 (#4), Grok 4.6: 44.5 (#66)

BenchmarkGrok 4Grok 4.6
LMArena Longer Query14091454
Fiction.LiveBench94.4%—

Writing & Preference Grok 4.6 leads

Grok 4: 58.5 (#116), Grok 4.6: 62.3 (#80)

BenchmarkGrok 4Grok 4.6
LMArena Text14111428
LMArena Creative Writing13971428
LMArena Multi-Turn14161425
Short-Story Creative Writing76.9%—
WildBench79.7%—

Frequently asked questions

Is Grok 4 better than Grok 4.6?

Grok 4.6 is the stronger model overall, scoring 56.9 to 48.1 on the Noometry Index.

Is Grok 4 or Grok 4.6 better for coding?

Grok 4.6 scores higher on coding benchmarks: 58.5 versus 50.3 in the Noometry coding category.

How many benchmarks do Grok 4 and Grok 4.6 share?

26 benchmarks have published results for both models. Grok 4 has 48 scored results on Noometry and Grok 4.6 has 49.

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