Noometry

Model comparison

Gemini 1.5 Flash 8B vs GPT-6 Luna

GPT-6 Luna is the stronger model overall, scoring 53.3 to 29.9 on the Noometry Index.

Last verified . 21 shared benchmarks.

Gemini 1.5 Flash 8B Google

29.9

Rank #301 Confirmed

GPT-6 Luna OpenAI

53.3

Rank #36 Confirmed

Summary

  • They share 21 benchmarks with published results for both. Gemini 1.5 Flash 8B scores higher in 0 categories and GPT-6 Luna in 9 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in math, where GPT-6 Luna leads 76.1 to 14.2.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 4.6% for Gemini 1.5 Flash 8B and 98.9% for GPT-6 Luna.

Side by side

Gemini 1.5 Flash 8BGPT-6 Luna
ProviderGoogleOpenAI
Noometry Index29.953.3
Released2024-10-032026-09-22
WeightsProprietaryProprietary
Context window—1.05M
Max output—128K
Input $ / M tokens—$0.10
Output $ / M tokens—$0.50
Results tracked2142

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Category by category

Coding GPT-6 Luna leads

Gemini 1.5 Flash 8B: 35.5 (#225), GPT-6 Luna: 55.5 (#25)

BenchmarkGemini 1.5 Flash 8BGPT-6 Luna
LMArena Coding12181439
DeepSWE—66.6%
FrontierCode—42.4%
LMArena WebDev—1581
SciCode—54.6%
ALE-Bench—1,577

Agentic & Tool Use Not comparable

Gemini 1.5 Flash 8B: —, GPT-6 Luna: 33.3 (#54)

BenchmarkGemini 1.5 Flash 8BGPT-6 Luna
APEX-Agents—44.3%
GDP.pdf—23%

Reasoning GPT-6 Luna leads

Gemini 1.5 Flash 8B: 20.0 (#244), GPT-6 Luna: 48.2 (#41)

BenchmarkGemini 1.5 Flash 8BGPT-6 Luna
LMArena Hard Prompts12091411
DTBench50%90.1%
ARC-AGI-2—59.3%
NYT Connections (extended)—68.7%
ARC-AGI-1—86.7%
CritPt—19.4%
Chess Puzzles—31%
Mystery Game Puzzles—7%
LMCA—44.5%
Epoch Capabilities Index—156.28

Math GPT-6 Luna leads

Gemini 1.5 Flash 8B: 14.2 (#302), GPT-6 Luna: 76.1 (#15)

BenchmarkGemini 1.5 Flash 8BGPT-6 Luna
OTIS Mock AIME 2024-20254.6%98.9%
LMArena Math12071416
FrontierMath (Tiers 1-3)—78.9%
FrontierMath Tier 4—56.1%
ProofBench—64%

Knowledge GPT-6 Luna leads

Gemini 1.5 Flash 8B: 16.0 (#289), GPT-6 Luna: 57.0 (#41)

BenchmarkGemini 1.5 Flash 8BGPT-6 Luna
GPQA Diamond33%90.5%
LMArena Expert11851444
SimpleQA Verified—41.4%

Multimodal GPT-6 Luna leads

Gemini 1.5 Flash 8B: 28.2 (#115), GPT-6 Luna: 42.4 (#30)

BenchmarkGemini 1.5 Flash 8BGPT-6 Luna
LMArena Vision10441217
Blueprint-Bench 2—31.2%
Furniture Assembly—44.2%

Multilingual GPT-6 Luna leads

Gemini 1.5 Flash 8B: 38.5 (#229), GPT-6 Luna: 50.5 (#117)

BenchmarkGemini 1.5 Flash 8BGPT-6 Luna
LMArena Non-English12151386
LMArena Chinese12311433
LMArena French12341420
LMArena German12061369
LMArena Japanese11501369
LMArena Korean11401360
LMArena Russian12361394
LMArena Spanish12121393

Instruction Following GPT-6 Luna leads

Gemini 1.5 Flash 8B: 62.8 (#236), GPT-6 Luna: 74.3 (#99)

BenchmarkGemini 1.5 Flash 8BGPT-6 Luna
LMArena Instruction Following11991409

Long Context GPT-6 Luna leads

Gemini 1.5 Flash 8B: 37.0 (#225), GPT-6 Luna: 43.0 (#111)

BenchmarkGemini 1.5 Flash 8BGPT-6 Luna
LMArena Longer Query12191409

Writing & Preference GPT-6 Luna leads

Gemini 1.5 Flash 8B: 42.8 (#232), GPT-6 Luna: 58.3 (#119)

BenchmarkGemini 1.5 Flash 8BGPT-6 Luna
LMArena Text12261391
LMArena Creative Writing12181363
LMArena Multi-Turn11851396

Frequently asked questions

Is Gemini 1.5 Flash 8B better than GPT-6 Luna?

GPT-6 Luna is the stronger model overall, scoring 53.3 to 29.9 on the Noometry Index.

Is Gemini 1.5 Flash 8B or GPT-6 Luna better for coding?

GPT-6 Luna scores higher on coding benchmarks: 55.5 versus 35.5 in the Noometry coding category.

How many benchmarks do Gemini 1.5 Flash 8B and GPT-6 Luna share?

21 benchmarks have published results for both models. Gemini 1.5 Flash 8B has 21 scored results on Noometry and GPT-6 Luna has 42.

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