Model comparison

Gemini 1.5 Flash 8B vs Grok 4

Grok 4 is the stronger model overall, scoring 48.1 to 29.9 on the Noometry Index.

Last verified . 20 shared benchmarks.

Gemini 1.5 Flash 8B Google

29.9

Rank #301 Confirmed

Grok 4 xAI

48.1

Rank #56 Confirmed

Summary

  • They share 20 benchmarks with published results for both. Gemini 1.5 Flash 8B scores higher in 0 categories and Grok 4 in 9 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Grok 4 leads 53.8 to 16.0.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 4.6% for Gemini 1.5 Flash 8B and 84% for Grok 4.

Side by side

Gemini 1.5 Flash 8B and Grok 4 specifications
Gemini 1.5 Flash 8BGrok 4
ProviderGooglexAI
Noometry Index29.948.1
Released2024-10-032025-07-09
WeightsProprietaryProprietary
Context window——
Max output——
Input $ / M tokens——
Output $ / M tokens——
Results tracked2148

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Category by category

Coding Grok 4 leads

Gemini 1.5 Flash 8B: 35.5 (#225), Grok 4: 50.3 (#46)

Coding benchmarks
BenchmarkGemini 1.5 Flash 8BGrok 4
LMArena Coding12181408
Aider Polyglot—79.6%
WeirdML—45.7%

Agentic & Tool Use Not comparable

Gemini 1.5 Flash 8B: —, Grok 4: 32.3 (#68)

Agentic & Tool Use benchmarks
BenchmarkGemini 1.5 Flash 8BGrok 4
Terminal-Bench—27.2%
Berkeley Function Calling Leaderboard—63%
GDPval—21.1%
Cybench—43%
DeepResearch Bench—47.3%
BALROG—43.6%
LMArena Search—1142
METR Time Horizons—66.6%

Reasoning Grok 4 leads

Gemini 1.5 Flash 8B: 20.0 (#244), Grok 4: 36.7 (#65)

Reasoning benchmarks
BenchmarkGemini 1.5 Flash 8BGrok 4
LMArena Hard Prompts12091409
ARC-AGI-2—16%
SimpleBench—60.5%
Kagi LLM Benchmark—73.6%
ARC-AGI-1—66.7%
Chess Puzzles—28%
DTBench50%—
Epoch Capabilities Index—146.44
ForecastBench—60.9

Math Grok 4 leads

Gemini 1.5 Flash 8B: 14.2 (#302), Grok 4: 48.4 (#64)

Math benchmarks
BenchmarkGemini 1.5 Flash 8BGrok 4
OTIS Mock AIME 2024-20254.6%84%
LMArena Math12071422
Omni-MATH—60.3%
FrontierMath (Feb 2025 set)—19.7%
FrontierMath Tier 4 (v1)—2.1%

Knowledge Grok 4 leads

Gemini 1.5 Flash 8B: 16.0 (#289), Grok 4: 53.8 (#55)

Knowledge benchmarks
BenchmarkGemini 1.5 Flash 8BGrok 4
GPQA Diamond33%87%
LMArena Expert11851415
MMLU-Pro—85.1%
Confabulations—12.4%
GPQA (HELM)—72.7%

Multimodal Grok 4 leads

Gemini 1.5 Flash 8B: 28.2 (#115), Grok 4: 33.7 (#94)

Multimodal benchmarks
BenchmarkGemini 1.5 Flash 8BGrok 4
LMArena Vision10441210
GeoBench—45%

Multilingual Grok 4 leads

Gemini 1.5 Flash 8B: 38.5 (#229), Grok 4: 51.8 (#103)

Multilingual benchmarks
BenchmarkGemini 1.5 Flash 8BGrok 4
LMArena Non-English12151403
LMArena Chinese12311427
LMArena French12341418
LMArena German12061429
LMArena Japanese11501394
LMArena Korean11401377
LMArena Russian12361410
LMArena Spanish12121420

Instruction Following Grok 4 leads

Gemini 1.5 Flash 8B: 62.8 (#236), Grok 4: 79.2 (#5)

Instruction Following benchmarks
BenchmarkGemini 1.5 Flash 8BGrok 4
LMArena Instruction Following11991387
IFEval—94.9%

Long Context Grok 4 leads

Gemini 1.5 Flash 8B: 37.0 (#225), Grok 4: 63.1 (#4)

Long Context benchmarks
BenchmarkGemini 1.5 Flash 8BGrok 4
LMArena Longer Query12191409
Fiction.LiveBench—94.4%

Writing & Preference Grok 4 leads

Gemini 1.5 Flash 8B: 42.8 (#232), Grok 4: 58.5 (#116)

Writing & Preference benchmarks
BenchmarkGemini 1.5 Flash 8BGrok 4
LMArena Text12261411
LMArena Creative Writing12181397
LMArena Multi-Turn11851416
Short-Story Creative Writing—76.9%
WildBench—79.7%

Frequently asked questions

Is Gemini 1.5 Flash 8B better than Grok 4?

Grok 4 is the stronger model overall, scoring 48.1 to 29.9 on the Noometry Index.

Is Gemini 1.5 Flash 8B or Grok 4 better for coding?

Grok 4 scores higher on coding benchmarks: 50.3 versus 35.5 in the Noometry coding category.

How many benchmarks do Gemini 1.5 Flash 8B and Grok 4 share?

20 benchmarks have published results for both models. Gemini 1.5 Flash 8B has 21 scored results on Noometry and Grok 4 has 48.

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