Noometry

Model comparison

Gemini 1.5 Flash 8B vs GPT-4.5

GPT-4.5 is the stronger model overall, scoring 37.2 to 29.9 on the Noometry Index.

Last verified . 19 shared benchmarks.

Gemini 1.5 Flash 8B Google

29.9

Rank #301 Confirmed

GPT-4.5 OpenAI

37.2

Rank #208 Confirmed

Summary

  • They share 19 benchmarks with published results for both. Gemini 1.5 Flash 8B scores higher in 1 category and GPT-4.5 in 8 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in math, where GPT-4.5 leads 32.6 to 14.2.
  • The biggest single-benchmark swing is GPQA Diamond: 33% for Gemini 1.5 Flash 8B and 68.7% for GPT-4.5.

Side by side

Gemini 1.5 Flash 8BGPT-4.5
ProviderGoogleOpenAI
Noometry Index29.937.2
Released2024-10-032025-02-27
WeightsProprietaryProprietary
Context window——
Max output——
Input $ / M tokens——
Output $ / M tokens——
Results tracked2142

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Category by category

Coding GPT-4.5 leads

Gemini 1.5 Flash 8B: 35.5 (#225), GPT-4.5: 42.2 (#109)

BenchmarkGemini 1.5 Flash 8BGPT-4.5
LMArena Coding12181396
Aider Polyglot—44.9%
WeirdML—39.4%
LiveBench Coding—75.2%

Agentic & Tool Use Not comparable

Gemini 1.5 Flash 8B: —, GPT-4.5: 27.9 (#97)

BenchmarkGemini 1.5 Flash 8BGPT-4.5
Cybench—17.5%

Reasoning Gemini 1.5 Flash 8B leads

Gemini 1.5 Flash 8B: 20.0 (#244), GPT-4.5: 13.9 (#330)

BenchmarkGemini 1.5 Flash 8BGPT-4.5
LMArena Hard Prompts12091403
ARC-AGI-2—0.8%
SimpleBench—34.5%
ARC-AGI-1—10.3%
EnigmaEval—3.2%
LiveBench Reasoning—71.1%
DTBench50%—
LiveBench Data Analysis—64.3%
Epoch Capabilities Index—136.74
ForecastBench—61.7
LiveBench—69%

Math GPT-4.5 leads

Gemini 1.5 Flash 8B: 14.2 (#302), GPT-4.5: 32.6 (#211)

BenchmarkGemini 1.5 Flash 8BGPT-4.5
OTIS Mock AIME 2024-20254.6%37.8%
LMArena Math12071412
LiveBench Math—69.3%
MATH Level 5—78.6%

Knowledge GPT-4.5 leads

Gemini 1.5 Flash 8B: 16.0 (#289), GPT-4.5: 32.5 (#211)

BenchmarkGemini 1.5 Flash 8BGPT-4.5
GPQA Diamond33%68.7%
LMArena Expert11851394
Humanity's Last Exam—5.4%
Confabulations—13.6%

Multimodal GPT-4.5 leads

Gemini 1.5 Flash 8B: 28.2 (#115), GPT-4.5: 37.6 (#71)

BenchmarkGemini 1.5 Flash 8BGPT-4.5
LMArena Vision10441195
VPCT—45%

Multilingual GPT-4.5 leads

Gemini 1.5 Flash 8B: 38.5 (#229), GPT-4.5: 52.5 (#83)

BenchmarkGemini 1.5 Flash 8BGPT-4.5
LMArena Non-English12151413
LMArena Chinese12311421
LMArena French12341418
LMArena German12061457
LMArena Japanese11501416
LMArena Korean11401392
LMArena Russian12361419
LMArena Spanish1212—

Instruction Following GPT-4.5 leads

Gemini 1.5 Flash 8B: 62.8 (#236), GPT-4.5: 72.6 (#134)

BenchmarkGemini 1.5 Flash 8BGPT-4.5
LMArena Instruction Following11991404
LiveBench Instruction Following—72.3%

Long Context GPT-4.5 leads

Gemini 1.5 Flash 8B: 37.0 (#225), GPT-4.5: 40.4 (#155)

BenchmarkGemini 1.5 Flash 8BGPT-4.5
LMArena Longer Query12191406
Fiction.LiveBench—63.9%

Writing & Preference GPT-4.5 leads

Gemini 1.5 Flash 8B: 42.8 (#232), GPT-4.5: 56.9 (#134)

BenchmarkGemini 1.5 Flash 8BGPT-4.5
LMArena Text12261417
LMArena Creative Writing12181394
LMArena Multi-Turn11851444
Short-Story Creative Writing—75.6%
EQ-Bench Creative Writing—1258
LiveBench Language—61.5%

Frequently asked questions

Is Gemini 1.5 Flash 8B better than GPT-4.5?

GPT-4.5 is the stronger model overall, scoring 37.2 to 29.9 on the Noometry Index.

Is Gemini 1.5 Flash 8B or GPT-4.5 better for coding?

GPT-4.5 scores higher on coding benchmarks: 42.2 versus 35.5 in the Noometry coding category.

How many benchmarks do Gemini 1.5 Flash 8B and GPT-4.5 share?

19 benchmarks have published results for both models. Gemini 1.5 Flash 8B has 21 scored results on Noometry and GPT-4.5 has 42.

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