Noometry

Model comparison

Gemma 3 12B vs GPT-4.5

GPT-4.5 is the stronger model overall, scoring 37.2 to 32.1 on the Noometry Index.

Last verified . 16 shared benchmarks.

Gemma 3 12B Google

32.1

Rank #262 Confirmed

GPT-4.5 OpenAI

37.2

Rank #208 Confirmed

Summary

  • They share 16 benchmarks with published results for both. Gemma 3 12B scores higher in 1 category and GPT-4.5 in 8 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in coding, where GPT-4.5 leads 42.2 to 31.7.
  • The biggest single-benchmark swing is GPQA Diamond: 39.5% for Gemma 3 12B and 68.7% for GPT-4.5.
  • Gemma 3 12B has downloadable open weights; the other is API-only.

Side by side

Gemma 3 12BGPT-4.5
ProviderGoogleOpenAI
Noometry Index32.137.2
Released2025-03-122025-02-27
WeightsOpenProprietary
Context window131K—
Max output8K—
Input $ / M tokens$0.05—
Output $ / M tokens$0.15—
Results tracked2442

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Category by category

Coding GPT-4.5 leads

Gemma 3 12B: 31.7 (#280), GPT-4.5: 42.2 (#109)

BenchmarkGemma 3 12BGPT-4.5
LMArena Coding12811396
Aider Polyglot—44.9%
SciCode17.4%—
WeirdML—39.4%
LiveBench Coding—75.2%

Agentic & Tool Use GPT-4.5 leads

Gemma 3 12B: 25.5 (#108), GPT-4.5: 27.9 (#97)

BenchmarkGemma 3 12BGPT-4.5
Berkeley Function Calling Leaderboard30.4%—
Cybench—17.5%

Reasoning Gemma 3 12B leads

Gemma 3 12B: 15.7 (#313), GPT-4.5: 13.9 (#330)

BenchmarkGemma 3 12BGPT-4.5
LMArena Hard Prompts13091403
Epoch Capabilities Index123.5136.74
ARC-AGI-2—0.8%
SimpleBench—34.5%
ARC-AGI-1—10.3%
CritPt0%—
Chess Puzzles0%—
EnigmaEval—3.2%
LiveBench Reasoning—71.1%
DTBench48.8%—
LiveBench Data Analysis—64.3%
LMCA4.5%—
ForecastBench—61.7
LiveBench—69%

Math GPT-4.5 leads

Gemma 3 12B: 22.3 (#279), GPT-4.5: 32.6 (#211)

BenchmarkGemma 3 12BGPT-4.5
OTIS Mock AIME 2024-202516.7%37.8%
LMArena Math13071412
LiveBench Math—69.3%
MATH Level 5—78.6%

Knowledge GPT-4.5 leads

Gemma 3 12B: 26.5 (#257), GPT-4.5: 32.5 (#211)

BenchmarkGemma 3 12BGPT-4.5
GPQA Diamond39.5%68.7%
LMArena Expert12481394
Humanity's Last Exam—5.4%
Confabulations—13.6%
Vectara Hallucination Rate4.4%—

Multimodal Not comparable

Gemma 3 12B: —, GPT-4.5: 37.6 (#71)

BenchmarkGemma 3 12BGPT-4.5
LMArena Vision—1195
VPCT—45%
MindCube46.7%—

Multilingual GPT-4.5 leads

Gemma 3 12B: 45.7 (#165), GPT-4.5: 52.5 (#83)

BenchmarkGemma 3 12BGPT-4.5
LMArena Non-English13181413
LMArena German13701457
LMArena Russian13351419
LMArena Chinese—1421
LMArena French—1418
LMArena Japanese—1416
LMArena Korean—1392

Instruction Following GPT-4.5 leads

Gemma 3 12B: 68.6 (#186), GPT-4.5: 72.6 (#134)

BenchmarkGemma 3 12BGPT-4.5
LMArena Instruction Following12991404
LiveBench Instruction Following—72.3%

Long Context Too close to call

Gemma 3 12B: 40.0 (#162), GPT-4.5: 40.4 (#155)

BenchmarkGemma 3 12BGPT-4.5
LMArena Longer Query13171406
Fiction.LiveBench—63.9%

Writing & Preference GPT-4.5 leads

Gemma 3 12B: 47.5 (#209), GPT-4.5: 56.9 (#134)

BenchmarkGemma 3 12BGPT-4.5
LMArena Text13341417
LMArena Creative Writing13311394
EQ-Bench Creative Writing11261258
LMArena Multi-Turn13341444
Short-Story Creative Writing—75.6%
LiveBench Language—61.5%

Frequently asked questions

Is Gemma 3 12B better than GPT-4.5?

GPT-4.5 is the stronger model overall, scoring 37.2 to 32.1 on the Noometry Index.

Is Gemma 3 12B or GPT-4.5 better for coding?

GPT-4.5 scores higher on coding benchmarks: 42.2 versus 31.7 in the Noometry coding category.

How many benchmarks do Gemma 3 12B and GPT-4.5 share?

16 benchmarks have published results for both models. Gemma 3 12B has 24 scored results on Noometry and GPT-4.5 has 42.

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