Noometry

Model comparison

GPT-6 Sol vs Grok 4

GPT-6 Sol is the stronger model overall, scoring 61.8 to 48.1 on the Noometry Index.

Last verified . 23 shared benchmarks.

GPT-6 Sol OpenAI

61.8

Rank #12 Confirmed

Grok 4 xAI

48.1

Rank #56 Confirmed

Summary

  • They share 23 benchmarks with published results for both. GPT-6 Sol scores higher in 7 categories and Grok 4 in 3 categories; 10 gaps are clear of the uncertainty.
  • The widest gap is in math, where GPT-6 Sol leads 87.2 to 48.4.
  • The biggest single-benchmark swing is ARC-AGI-2: 89.6% for GPT-6 Sol and 16% for Grok 4.

Side by side

GPT-6 SolGrok 4
ProviderOpenAIxAI
Noometry Index61.848.1
Released2026-09-222025-07-09
WeightsProprietaryProprietary
Context window1.05M—
Max output128K—
Input $ / M tokens$2—
Output $ / M tokens$10—
Results tracked4548

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Category by category

Coding GPT-6 Sol leads

GPT-6 Sol: 60.1 (#11), Grok 4: 50.3 (#46)

BenchmarkGPT-6 SolGrok 4
LMArena Coding14471408
DeepSWE68.8%—
FrontierCode49.3%—
Aider Polyglot—79.6%
LMArena WebDev1688—
SciCode57.6%—
WeirdML—45.7%
ALE-Bench2,462—

Agentic & Tool Use GPT-6 Sol leads

GPT-6 Sol: 37.2 (#36), Grok 4: 32.3 (#68)

BenchmarkGPT-6 SolGrok 4
Terminal-Bench—27.2%
APEX-Agents54.3%—
Berkeley Function Calling Leaderboard—63%
GDPval—21.1%
Cybench—43%
DeepResearch Bench—47.3%
BALROG—43.6%
GDP.pdf26.4%—
LMArena Search—1142
METR Time Horizons—66.6%
Vending-Bench 214,428—

Reasoning GPT-6 Sol leads

GPT-6 Sol: 74.0 (#9), Grok 4: 36.7 (#65)

BenchmarkGPT-6 SolGrok 4
ARC-AGI-289.6%16%
ARC-AGI-195.5%66.7%
LMArena Hard Prompts14181409
Epoch Capabilities Index162.72146.44
SimpleBench—60.5%
Kagi LLM Benchmark—73.6%
NYT Connections (extended)90.1%—
CritPt30.9%—
Chess Puzzles—28%
EBR-Bench53.3%—
Mystery Game Puzzles56%—
DTBench97.3%—
LMCA59.1%—
ForecastBench—60.9

Math GPT-6 Sol leads

GPT-6 Sol: 87.2 (#7), Grok 4: 48.4 (#64)

BenchmarkGPT-6 SolGrok 4
OTIS Mock AIME 2024-2025100%84%
LMArena Math14021422
FrontierMath (Tiers 1-3)89.8%—
FrontierMath Tier 490%—
ProofBench83%—
Omni-MATH—60.3%
FrontierMath (Feb 2025 set)—19.7%
FrontierMath Tier 4 (v1)—2.1%

Knowledge GPT-6 Sol leads

GPT-6 Sol: 64.8 (#15), Grok 4: 53.8 (#55)

BenchmarkGPT-6 SolGrok 4
GPQA Diamond94.3%87%
LMArena Expert14391415
SimpleQA Verified60.7%—
MMLU-Pro—85.1%
Confabulations—12.4%
Vectara Hallucination Rate6.5%—
GPQA (HELM)—72.7%

Multimodal GPT-6 Sol leads

GPT-6 Sol: 47.6 (#10), Grok 4: 33.7 (#94)

BenchmarkGPT-6 SolGrok 4
LMArena Vision12451210
GeoBench—45%
Blueprint-Bench 236.9%—
Furniture Assembly58.3%—

Multilingual Grok 4 leads

GPT-6 Sol: 50.5 (#118), Grok 4: 51.8 (#103)

BenchmarkGPT-6 SolGrok 4
LMArena Non-English13851403
LMArena Chinese14051427
LMArena French14101418
LMArena German13901429
LMArena Japanese13851394
LMArena Korean13411377
LMArena Russian14011410
LMArena Spanish13841420

Instruction Following Grok 4 leads

GPT-6 Sol: 74.5 (#94), Grok 4: 79.2 (#5)

BenchmarkGPT-6 SolGrok 4
LMArena Instruction Following14121387
IFEval—94.9%

Long Context Grok 4 leads

GPT-6 Sol: 43.1 (#108), Grok 4: 63.1 (#4)

BenchmarkGPT-6 SolGrok 4
LMArena Longer Query14111409
Fiction.LiveBench—94.4%

Writing & Preference GPT-6 Sol leads

GPT-6 Sol: 71.9 (#18), Grok 4: 58.5 (#116)

BenchmarkGPT-6 SolGrok 4
LMArena Text13951411
LMArena Creative Writing13781397
LMArena Multi-Turn14121416
Short-Story Creative Writing—76.9%
EQ-Bench Creative Writing2125—
WildBench—79.7%

Frequently asked questions

Is GPT-6 Sol better than Grok 4?

GPT-6 Sol is the stronger model overall, scoring 61.8 to 48.1 on the Noometry Index.

Is GPT-6 Sol or Grok 4 better for coding?

GPT-6 Sol scores higher on coding benchmarks: 60.1 versus 50.3 in the Noometry coding category.

How many benchmarks do GPT-6 Sol and Grok 4 share?

23 benchmarks have published results for both models. GPT-6 Sol has 45 scored results on Noometry and Grok 4 has 48.

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