Noometry

Model comparison

Claude 3 Sonnet vs Grok 4

Grok 4 is the stronger model overall, scoring 48.1 to 29.0 on the Noometry Index.

Last verified . 22 shared benchmarks.

Claude 3 Sonnet Anthropic

29.0

Rank #319 Confirmed

Grok 4 xAI

48.1

Rank #56 Confirmed

Summary

  • They share 22 benchmarks with published results for both. Claude 3 Sonnet scores higher in 0 categories and Grok 4 in 9 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in math, where Grok 4 leads 48.4 to 10.7.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 2.5% for Claude 3 Sonnet and 84% for Grok 4.

Side by side

Claude 3 SonnetGrok 4
ProviderAnthropicxAI
Noometry Index29.048.1
Released2024-02-292025-07-09
WeightsProprietaryProprietary
Context window——
Max output——
Input $ / M tokens——
Output $ / M tokens——
Results tracked3048

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Category by category

Coding Grok 4 leads

Claude 3 Sonnet: 29.6 (#302), Grok 4: 50.3 (#46)

BenchmarkClaude 3 SonnetGrok 4
WeirdML10.2%45.7%
LMArena Coding12231408
Aider Polyglot—79.6%
BigCodeBench Instruct42.7%—
BigCodeBench Complete53.8%—
HumanEval+64%—
MBPP+69.3%—

Agentic & Tool Use Not comparable

Claude 3 Sonnet: —, Grok 4: 32.3 (#68)

BenchmarkClaude 3 SonnetGrok 4
Terminal-Bench—27.2%
Berkeley Function Calling Leaderboard—63%
GDPval—21.1%
Cybench—43%
DeepResearch Bench—47.3%
BALROG—43.6%
LMArena Search—1142
METR Time Horizons—66.6%

Reasoning Grok 4 leads

Claude 3 Sonnet: 20.5 (#237), Grok 4: 36.7 (#65)

BenchmarkClaude 3 SonnetGrok 4
LMArena Hard Prompts11971409
Epoch Capabilities Index120.7146.44
ARC-AGI-2—16%
SimpleBench—60.5%
Kagi LLM Benchmark—73.6%
ARC-AGI-1—66.7%
Chess Puzzles—28%
DTBench53.6%—
ForecastBench—60.9
WinoGrande75.1%—

Math Grok 4 leads

Claude 3 Sonnet: 10.7 (#310), Grok 4: 48.4 (#64)

BenchmarkClaude 3 SonnetGrok 4
OTIS Mock AIME 2024-20252.5%84%
LMArena Math12131422
Omni-MATH—60.3%
MATH Level 518.2%—
FrontierMath (Feb 2025 set)—19.7%
FrontierMath Tier 4 (v1)—2.1%

Knowledge Grok 4 leads

Claude 3 Sonnet: 21.1 (#276), Grok 4: 53.8 (#55)

BenchmarkClaude 3 SonnetGrok 4
GPQA Diamond40.6%87%
LMArena Expert11731415
MMLU-Pro—85.1%
Confabulations—12.4%
GPQA (HELM)—72.7%
MMLU75.9%—

Multimodal Grok 4 leads

Claude 3 Sonnet: 25.2 (#125), Grok 4: 33.7 (#94)

BenchmarkClaude 3 SonnetGrok 4
LMArena Vision9841210
GeoBench—45%

Multilingual Grok 4 leads

Claude 3 Sonnet: 37.8 (#234), Grok 4: 51.8 (#103)

BenchmarkClaude 3 SonnetGrok 4
LMArena Non-English12051403
LMArena Chinese11891427
LMArena French12291418
LMArena German12041429
LMArena Japanese11311394
LMArena Korean11281377
LMArena Russian12271410
LMArena Spanish12041420

Instruction Following Grok 4 leads

Claude 3 Sonnet: 62.8 (#235), Grok 4: 79.2 (#5)

BenchmarkClaude 3 SonnetGrok 4
LMArena Instruction Following11991387
IFEval—94.9%

Long Context Grok 4 leads

Claude 3 Sonnet: 36.7 (#228), Grok 4: 63.1 (#4)

BenchmarkClaude 3 SonnetGrok 4
LMArena Longer Query12111409
Fiction.LiveBench—94.4%

Writing & Preference Grok 4 leads

Claude 3 Sonnet: 42.1 (#238), Grok 4: 58.5 (#116)

BenchmarkClaude 3 SonnetGrok 4
LMArena Text12181411
LMArena Creative Writing11861397
LMArena Multi-Turn12271416
Short-Story Creative Writing—76.9%
WildBench—79.7%

Frequently asked questions

Is Claude 3 Sonnet better than Grok 4?

Grok 4 is the stronger model overall, scoring 48.1 to 29.0 on the Noometry Index.

Is Claude 3 Sonnet or Grok 4 better for coding?

Grok 4 scores higher on coding benchmarks: 50.3 versus 29.6 in the Noometry coding category.

How many benchmarks do Claude 3 Sonnet and Grok 4 share?

22 benchmarks have published results for both models. Claude 3 Sonnet has 30 scored results on Noometry and Grok 4 has 48.

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