Noometry

Model comparison

Gemini 1.5 Flash 8B vs GPT-5.4 mini

GPT-5.4 mini is the stronger model overall, scoring 44.8 to 29.7 on the Noometry Index.

Last verified . 21 shared benchmarks.

Gemini 1.5 Flash 8B Google

29.7

Rank #292 Confirmed

GPT-5.4 mini OpenAI

44.8

Rank #69 Confirmed

Summary

  • They share 21 benchmarks with published results for both. Gemini 1.5 Flash 8B scores higher in 0 categories and GPT-5.4 mini in 9 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where GPT-5.4 mini leads 51.4 to 16.0.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 4.6% for Gemini 1.5 Flash 8B and 88.9% for GPT-5.4 mini.

Side by side

Gemini 1.5 Flash 8BGPT-5.4 mini
ProviderGoogleOpenAI
Noometry Index29.744.8
Released2024-10-032026-03-17
WeightsProprietaryProprietary
Context window—400K
Max output—128K
Input $ / M tokens—$0.75
Output $ / M tokens—$4.50
Results tracked2146

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Category by category

Coding GPT-5.4 mini leads

Gemini 1.5 Flash 8B: 34.9 (#221), GPT-5.4 mini: 45.0 (#67)

BenchmarkGemini 1.5 Flash 8BGPT-5.4 mini
LMArena Coding12181438
FrontierCode—27%
LMArena WebDev—1397
SciCode—49.9%
WeirdML—60.3%
ALE-Bench—1,189

Agentic & Tool Use Not comparable

Gemini 1.5 Flash 8B: —, GPT-5.4 mini: 29.6 (#74)

BenchmarkGemini 1.5 Flash 8BGPT-5.4 mini
DeepResearch Bench—36.3%

Reasoning GPT-5.4 mini leads

Gemini 1.5 Flash 8B: 19.2 (#242), GPT-5.4 mini: 30.3 (#77)

BenchmarkGemini 1.5 Flash 8BGPT-5.4 mini
LMArena Hard Prompts12101424
DTBench50%80%
ARC-AGI-2—18.9%
Kagi LLM Benchmark—37.9%
NYT Connections (extended)—61.8%
ARC-AGI-1—63.7%
CritPt—10%
Chess Puzzles—24%
Thematic Generalization—61.7%
Mystery Game Puzzles—11%
LMCA—40.8%
Epoch Capabilities Index—148.83
ForecastBench—57

Math GPT-5.4 mini leads

Gemini 1.5 Flash 8B: 13.3 (#296), GPT-5.4 mini: 45.4 (#63)

BenchmarkGemini 1.5 Flash 8BGPT-5.4 mini
OTIS Mock AIME 2024-20254.6%88.9%
LMArena Math12071418
FrontierMath (Tiers 1-3)—51.2%
FrontierMath Tier 4—9.8%
ProofBench—21%
FrontierMath (Feb 2025 set)—28.3%
FrontierMath Tier 4 (v1)—2.1%

Knowledge GPT-5.4 mini leads

Gemini 1.5 Flash 8B: 16.0 (#285), GPT-5.4 mini: 51.4 (#62)

BenchmarkGemini 1.5 Flash 8BGPT-5.4 mini
GPQA Diamond33%86.9%
LMArena Expert11851434
SimpleQA Verified—29.4%
Vectara Hallucination Rate—5.5%

Multimodal GPT-5.4 mini leads

Gemini 1.5 Flash 8B: 27.6 (#110), GPT-5.4 mini: 39.0 (#51)

BenchmarkGemini 1.5 Flash 8BGPT-5.4 mini
LMArena Vision10441245

Multilingual GPT-5.4 mini leads

Gemini 1.5 Flash 8B: 38.6 (#224), GPT-5.4 mini: 52.1 (#94)

BenchmarkGemini 1.5 Flash 8BGPT-5.4 mini
LMArena Non-English12151405
LMArena Chinese12311446
LMArena French12331440
LMArena German12061407
LMArena Japanese11501375
LMArena Korean11401369
LMArena Russian12361417
LMArena Spanish12121403

Instruction Following GPT-5.4 mini leads

Gemini 1.5 Flash 8B: 63.1 (#231), GPT-5.4 mini: 74.3 (#99)

BenchmarkGemini 1.5 Flash 8BGPT-5.4 mini
LMArena Instruction Following11991405

Long Context GPT-5.4 mini leads

Gemini 1.5 Flash 8B: 36.9 (#220), GPT-5.4 mini: 42.9 (#107)

BenchmarkGemini 1.5 Flash 8BGPT-5.4 mini
LMArena Longer Query12191407

Writing & Preference GPT-5.4 mini leads

Gemini 1.5 Flash 8B: 43.0 (#227), GPT-5.4 mini: 64.2 (#56)

BenchmarkGemini 1.5 Flash 8BGPT-5.4 mini
LMArena Text12261411
LMArena Creative Writing12181370
LMArena Multi-Turn11851429
EQ-Bench Creative Writing—1665

Frequently asked questions

Is Gemini 1.5 Flash 8B better than GPT-5.4 mini?

GPT-5.4 mini is the stronger model overall, scoring 44.8 to 29.7 on the Noometry Index.

Is Gemini 1.5 Flash 8B or GPT-5.4 mini better for coding?

GPT-5.4 mini scores higher on coding benchmarks: 45.0 versus 34.9 in the Noometry coding category.

How many benchmarks do Gemini 1.5 Flash 8B and GPT-5.4 mini share?

21 benchmarks have published results for both models. Gemini 1.5 Flash 8B has 21 scored results on Noometry and GPT-5.4 mini has 46.

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