Noometry

Model comparison

Amazon Nova Pro vs GPT-4.5

GPT-4.5 is the stronger model overall, scoring 37.2 to 31.0 on the Noometry Index.

Last verified . 28 shared benchmarks.

Amazon Nova Pro Amazon

31.0

Rank #281 Confirmed

GPT-4.5 OpenAI

37.2

Rank #208 Confirmed

Summary

  • They share 28 benchmarks with published results for both. Amazon Nova Pro scores higher in 1 category and GPT-4.5 in 9 categories; 10 gaps are clear of the uncertainty.
  • The widest gap is in writing & preference, where GPT-4.5 leads 56.9 to 43.9.
  • The biggest single-benchmark swing is LiveBench Reasoning: 32.6% for Amazon Nova Pro and 71.1% for GPT-4.5.

Side by side

Amazon Nova ProGPT-4.5
ProviderAmazonOpenAI
Noometry Index31.037.2
Released2024-12-032025-02-27
WeightsProprietaryProprietary
Context window300K—
Max output10K—
Input $ / M tokens$0.80—
Output $ / M tokens$3.20—
Results tracked3842

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Category by category

Coding GPT-4.5 leads

Amazon Nova Pro: 35.1 (#229), GPT-4.5: 42.2 (#109)

BenchmarkAmazon Nova ProGPT-4.5
LiveBench Coding38.1%75.2%
LMArena Coding12701396
Aider Polyglot—44.9%
WeirdML—39.4%

Agentic & Tool Use GPT-4.5 leads

Amazon Nova Pro: 16.7 (#147), GPT-4.5: 27.9 (#97)

BenchmarkAmazon Nova ProGPT-4.5
Berkeley Function Calling Leaderboard25%—
TheAgentCompany1.7%—
Cybench—17.5%

Reasoning Amazon Nova Pro leads

Amazon Nova Pro: 20.0 (#243), GPT-4.5: 13.9 (#330)

BenchmarkAmazon Nova ProGPT-4.5
LiveBench Reasoning32.6%71.1%
LMArena Hard Prompts12461403
LiveBench Data Analysis48.3%64.3%
Epoch Capabilities Index123.8136.74
LiveBench43.5%69%
ARC-AGI-2—0.8%
SimpleBench—34.5%
ARC-AGI-1—10.3%
EnigmaEval—3.2%
ForecastBench—61.7

Math GPT-4.5 leads

Amazon Nova Pro: 28.5 (#243), GPT-4.5: 32.6 (#211)

BenchmarkAmazon Nova ProGPT-4.5
LiveBench Math38%69.3%
LMArena Math12521412
OTIS Mock AIME 2024-2025—37.8%
Omni-MATH24.2%—
MATH Level 5—78.6%

Knowledge GPT-4.5 leads

Amazon Nova Pro: 27.4 (#250), GPT-4.5: 32.5 (#211)

BenchmarkAmazon Nova ProGPT-4.5
Humanity's Last Exam4.4%5.4%
Confabulations30.1%13.6%
LMArena Expert12111394
GPQA Diamond—68.7%
MMLU-Pro67.3%—
Vectara Hallucination Rate5.1%—
GPQA (HELM)44.6%—
MMLU82%—

Multimodal GPT-4.5 leads

Amazon Nova Pro: 25.0 (#126), GPT-4.5: 37.6 (#71)

BenchmarkAmazon Nova ProGPT-4.5
LMArena Vision9801195
VPCT—45%

Multilingual GPT-4.5 leads

Amazon Nova Pro: 39.7 (#223), GPT-4.5: 52.5 (#83)

BenchmarkAmazon Nova ProGPT-4.5
LMArena Non-English12341413
LMArena Chinese12441421
LMArena French12711418
LMArena German12431457
LMArena Japanese12001416
LMArena Korean12031392
LMArena Russian12401419
LMArena Spanish1182—

Instruction Following GPT-4.5 leads

Amazon Nova Pro: 64.9 (#226), GPT-4.5: 72.6 (#134)

BenchmarkAmazon Nova ProGPT-4.5
LiveBench Instruction Following67.1%72.3%
LMArena Instruction Following12351404
IFEval81.5%—

Long Context GPT-4.5 leads

Amazon Nova Pro: 38.1 (#205), GPT-4.5: 40.4 (#155)

BenchmarkAmazon Nova ProGPT-4.5
LMArena Longer Query12551406
Fiction.LiveBench—63.9%

Writing & Preference GPT-4.5 leads

Amazon Nova Pro: 43.9 (#226), GPT-4.5: 56.9 (#134)

BenchmarkAmazon Nova ProGPT-4.5
LMArena Text12591417
LMArena Creative Writing12121394
Short-Story Creative Writing60.5%75.6%
LMArena Multi-Turn12461444
LiveBench Language37%61.5%
EQ-Bench Creative Writing—1258
WildBench77.7%—

Frequently asked questions

Is Amazon Nova Pro better than GPT-4.5?

GPT-4.5 is the stronger model overall, scoring 37.2 to 31.0 on the Noometry Index.

Is Amazon Nova Pro or GPT-4.5 better for coding?

GPT-4.5 scores higher on coding benchmarks: 42.2 versus 35.1 in the Noometry coding category.

How many benchmarks do Amazon Nova Pro and GPT-4.5 share?

28 benchmarks have published results for both models. Amazon Nova Pro has 38 scored results on Noometry and GPT-4.5 has 42.

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