Noometry

Model comparison

Claude Sonnet 4 vs Grok 4.1

Claude Sonnet 4 and Grok 4.1 score almost the same on the Noometry Index (40.8 vs 41.5), so choose on price, context window or the category you care about most.

Last verified . 18 shared benchmarks.

Claude Sonnet 4 Anthropic

40.8

Rank #145 Confirmed

Grok 4.1 xAI

41.5

Rank #134 Confirmed

Summary

  • They share 18 benchmarks with published results for both. Claude Sonnet 4 scores higher in 4 categories and Grok 4.1 in 5 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in coding, where Claude Sonnet 4 leads 43.5 to 33.7.

Side by side

Claude Sonnet 4Grok 4.1
ProviderAnthropicxAI
Noometry Index40.841.5
Released2025-05-222025-11-17
WeightsProprietaryProprietary
Context window200K—
Max output64K—
Input $ / M tokens$3—
Output $ / M tokens$15—
Results tracked5819

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Category by category

Coding Claude Sonnet 4 leads

Claude Sonnet 4: 43.5 (#88), Grok 4.1: 33.7 (#253)

BenchmarkClaude Sonnet 4Grok 4.1
LMArena Coding14141445
SWE-bench Verified (bash only)64.9%—
Aider Polyglot61.3%—
LMArena WebDev—1214
SciCode40%—
GSO4.9%—
WeirdML46.1%—
ALE-Bench655.35—

Agentic & Tool Use Claude Sonnet 4 leads

Claude Sonnet 4: 38.5 (#31), Grok 4.1: 34.1 (#49)

BenchmarkClaude Sonnet 4Grok 4.1
Cybench35%39%
TheAgentCompany33.1%—
DeepResearch Bench46.6%—
OSWorld43.9%—
METR Time Horizons62%—

Reasoning Grok 4.1 leads

Claude Sonnet 4: 22.9 (#187), Grok 4.1: 29.5 (#91)

BenchmarkClaude Sonnet 4Grok 4.1
LMArena Hard Prompts13721435
ARC-AGI-25.9%—
SimpleBench45.5%—
Kagi LLM Benchmark73%—
ARC-AGI-140%—
CritPt0.3%—
EnigmaEval3.1%—
DTBench77.1%—
LMCA29%—
Epoch Capabilities Index141.69—
ForecastBench60.2—

Math Claude Sonnet 4 leads

Claude Sonnet 4: 43.3 (#80), Grok 4.1: 38.9 (#120)

BenchmarkClaude Sonnet 4Grok 4.1
LMArena Math13751422
OTIS Mock AIME 2024-202571.1%—
Omni-MATH60.2%—
MATH Level 584.4%—
FrontierMath (Feb 2025 set)4.1%—
FrontierMath Tier 4 (v1)0%—

Knowledge Claude Sonnet 4 leads

Claude Sonnet 4: 41.8 (#108), Grok 4.1: 39.5 (#133)

BenchmarkClaude Sonnet 4Grok 4.1
LMArena Expert13721417
GPQA Diamond79.2%—
Humanity's Last Exam7.8%—
MMLU-Pro84.3%—
Confabulations13.2%—
Vectara Hallucination Rate10.3%—
GPQA (HELM)70.6%—

Multimodal Not comparable

Claude Sonnet 4: 26.2 (#121), Grok 4.1: —

BenchmarkClaude Sonnet 4Grok 4.1
LMArena Vision1191—
GeoBench37%—
VPCT34%—
MindCube44.8%—

Multilingual Grok 4.1 leads

Claude Sonnet 4: 46.7 (#156), Grok 4.1: 53.4 (#68)

BenchmarkClaude Sonnet 4Grok 4.1
LMArena Non-English13331425
LMArena Chinese13501465
LMArena French13631448
LMArena German13311446
LMArena Japanese13021397
LMArena Korean12911407
LMArena Russian13551434
LMArena Spanish13571438

Instruction Following Grok 4.1 leads

Claude Sonnet 4: 71.7 (#145), Grok 4.1: 73.8 (#111)

BenchmarkClaude Sonnet 4Grok 4.1
LMArena Instruction Following13761400
IFEval84%—

Long Context Grok 4.1 leads

Claude Sonnet 4: 33.7 (#259), Grok 4.1: 43.2 (#100)

BenchmarkClaude Sonnet 4Grok 4.1
LMArena Longer Query13981416
Fiction.LiveBench46.9%—

Writing & Preference Grok 4.1 leads

Claude Sonnet 4: 57.1 (#132), Grok 4.1: 62.4 (#75)

BenchmarkClaude Sonnet 4Grok 4.1
LMArena Text13511437
LMArena Creative Writing13451411
LMArena Multi-Turn13761437
Short-Story Creative Writing81.4%—
EQ-Bench Creative Writing1483—
WildBench83.8%—

Frequently asked questions

Is Claude Sonnet 4 better than Grok 4.1?

Claude Sonnet 4 and Grok 4.1 score almost the same on the Noometry Index (40.8 vs 41.5), so choose on price, context window or the category you care about most.

Is Claude Sonnet 4 or Grok 4.1 better for coding?

Claude Sonnet 4 scores higher on coding benchmarks: 43.5 versus 33.7 in the Noometry coding category.

How many benchmarks do Claude Sonnet 4 and Grok 4.1 share?

18 benchmarks have published results for both models. Claude Sonnet 4 has 58 scored results on Noometry and Grok 4.1 has 19.

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