Noometry

Model comparison

Amazon Nova Pro vs Grok 4

Grok 4 is the stronger model overall, scoring 48.1 to 31.0 on the Noometry Index.

Last verified . 27 shared benchmarks.

Amazon Nova Pro Amazon

31.0

Rank #281 Confirmed

Grok 4 xAI

48.1

Rank #56 Confirmed

Summary

  • They share 27 benchmarks with published results for both. Amazon Nova Pro scores higher in 0 categories and Grok 4 in 10 categories; 10 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Grok 4 leads 53.8 to 27.4.
  • The biggest single-benchmark swing is Berkeley Function Calling Leaderboard: 25% for Amazon Nova Pro and 63% for Grok 4.

Side by side

Amazon Nova ProGrok 4
ProviderAmazonxAI
Noometry Index31.048.1
Released2024-12-032025-07-09
WeightsProprietaryProprietary
Context window300K—
Max output10K—
Input $ / M tokens$0.80—
Output $ / M tokens$3.20—
Results tracked3848

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Category by category

Coding Grok 4 leads

Amazon Nova Pro: 35.1 (#229), Grok 4: 50.3 (#46)

BenchmarkAmazon Nova ProGrok 4
LMArena Coding12701408
Aider Polyglot—79.6%
WeirdML—45.7%
LiveBench Coding38.1%—

Agentic & Tool Use Grok 4 leads

Amazon Nova Pro: 16.7 (#147), Grok 4: 32.3 (#68)

BenchmarkAmazon Nova ProGrok 4
Berkeley Function Calling Leaderboard25%63%
Terminal-Bench—27.2%
GDPval—21.1%
TheAgentCompany1.7%—
Cybench—43%
DeepResearch Bench—47.3%
BALROG—43.6%
LMArena Search—1142
METR Time Horizons—66.6%

Reasoning Grok 4 leads

Amazon Nova Pro: 20.0 (#243), Grok 4: 36.7 (#65)

BenchmarkAmazon Nova ProGrok 4
LMArena Hard Prompts12461409
Epoch Capabilities Index123.8146.44
ARC-AGI-2—16%
SimpleBench—60.5%
Kagi LLM Benchmark—73.6%
ARC-AGI-1—66.7%
Chess Puzzles—28%
LiveBench Reasoning32.6%—
LiveBench Data Analysis48.3%—
ForecastBench—60.9
LiveBench43.5%—

Math Grok 4 leads

Amazon Nova Pro: 28.5 (#243), Grok 4: 48.4 (#64)

BenchmarkAmazon Nova ProGrok 4
Omni-MATH24.2%60.3%
LMArena Math12521422
OTIS Mock AIME 2024-2025—84%
LiveBench Math38%—
FrontierMath (Feb 2025 set)—19.7%
FrontierMath Tier 4 (v1)—2.1%

Knowledge Grok 4 leads

Amazon Nova Pro: 27.4 (#250), Grok 4: 53.8 (#55)

BenchmarkAmazon Nova ProGrok 4
MMLU-Pro67.3%85.1%
Confabulations30.1%12.4%
GPQA (HELM)44.6%72.7%
LMArena Expert12111415
GPQA Diamond—87%
Humanity's Last Exam4.4%—
Vectara Hallucination Rate5.1%—
MMLU82%—

Multimodal Grok 4 leads

Amazon Nova Pro: 25.0 (#126), Grok 4: 33.7 (#94)

BenchmarkAmazon Nova ProGrok 4
LMArena Vision9801210
GeoBench—45%

Multilingual Grok 4 leads

Amazon Nova Pro: 39.7 (#223), Grok 4: 51.8 (#103)

BenchmarkAmazon Nova ProGrok 4
LMArena Non-English12341403
LMArena Chinese12441427
LMArena French12711418
LMArena German12431429
LMArena Japanese12001394
LMArena Korean12031377
LMArena Russian12401410
LMArena Spanish11821420

Instruction Following Grok 4 leads

Amazon Nova Pro: 64.9 (#226), Grok 4: 79.2 (#5)

BenchmarkAmazon Nova ProGrok 4
IFEval81.5%94.9%
LMArena Instruction Following12351387
LiveBench Instruction Following67.1%—

Long Context Grok 4 leads

Amazon Nova Pro: 38.1 (#205), Grok 4: 63.1 (#4)

BenchmarkAmazon Nova ProGrok 4
LMArena Longer Query12551409
Fiction.LiveBench—94.4%

Writing & Preference Grok 4 leads

Amazon Nova Pro: 43.9 (#226), Grok 4: 58.5 (#116)

BenchmarkAmazon Nova ProGrok 4
LMArena Text12591411
LMArena Creative Writing12121397
Short-Story Creative Writing60.5%76.9%
WildBench77.7%79.7%
LMArena Multi-Turn12461416
LiveBench Language37%—

Frequently asked questions

Is Amazon Nova Pro better than Grok 4?

Grok 4 is the stronger model overall, scoring 48.1 to 31.0 on the Noometry Index.

Is Amazon Nova Pro or Grok 4 better for coding?

Grok 4 scores higher on coding benchmarks: 50.3 versus 35.1 in the Noometry coding category.

How many benchmarks do Amazon Nova Pro and Grok 4 share?

27 benchmarks have published results for both models. Amazon Nova Pro has 38 scored results on Noometry and Grok 4 has 48.

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