Noometry

Model comparison

Gemma 3 27B vs Grok 4 Fast

Grok 4 Fast is the stronger model overall, scoring 39.4 to 30.8 on the Noometry Index.

Last verified . 22 shared benchmarks.

Gemma 3 27B Google

30.8

Rank #284 Confirmed

Grok 4 Fast xAI

39.4

Rank #167 Confirmed

Summary

  • They share 22 benchmarks with published results for both. Gemma 3 27B scores higher in 0 categories and Grok 4 Fast in 9 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in long context, where Grok 4 Fast leads 63.2 to 27.6.
  • The biggest single-benchmark swing is Fiction.LiveBench: 33.3% for Gemma 3 27B and 94.4% for Grok 4 Fast.
  • Gemma 3 27B has downloadable open weights; the other is API-only.

Side by side

Gemma 3 27BGrok 4 Fast
ProviderGooglexAI
Noometry Index30.839.4
Released2025-03-112025-09-19
WeightsOpenProprietary
Context window131K—
Max output8K—
Input $ / M tokens$0.08—
Output $ / M tokens$0.16—
Results tracked4330

Sponsored placements are available on pages like this one. Advertise on Noometry

Category by category

Coding Grok 4 Fast leads

Gemma 3 27B: 22.5 (#334), Grok 4 Fast: 32.5 (#271)

BenchmarkGemma 3 27BGrok 4 Fast
LMArena Coding13221429
Aider Polyglot4.9%—
LMArena WebDev—1159
SciCode21.2%—
WeirdML—42.9%
LiveBench Coding39.9%—

Agentic & Tool Use Grok 4 Fast leads

Gemma 3 27B: 25.1 (#110), Grok 4 Fast: 29.5 (#86)

BenchmarkGemma 3 27BGrok 4 Fast
Berkeley Function Calling Leaderboard29.5%—
τ²-bench Banking—15.7%
Cybench—30%
LMArena Search—1171

Reasoning Grok 4 Fast leads

Gemma 3 27B: 16.7 (#301), Grok 4 Fast: 22.2 (#201)

BenchmarkGemma 3 27BGrok 4 Fast
Kagi LLM Benchmark40.4%66.1%
LMArena Hard Prompts13401412
DTBench52.5%82.7%
Epoch Capabilities Index130.04144.2
ARC-AGI-2—5.3%
ARC-AGI-1—48.5%
CritPt0%—
Chess Puzzles0%—
LiveBench Reasoning43.8%—
LiveBench Data Analysis51.5%—
LMCA12.3%—
ForecastBench—60.5
LiveBench50%—

Math Grok 4 Fast leads

Gemma 3 27B: 25.9 (#265), Grok 4 Fast: 38.9 (#123)

BenchmarkGemma 3 27BGrok 4 Fast
LMArena Math13121419
OTIS Mock AIME 2024-202522.5%—
LiveBench Math55.4%—
MATH Level 574%—

Knowledge Grok 4 Fast leads

Gemma 3 27B: 25.5 (#261), Grok 4 Fast: 32.0 (#214)

BenchmarkGemma 3 27BGrok 4 Fast
Vectara Hallucination Rate7.4%19.7%
LMArena Expert13041411
GPQA Diamond47.7%—
Confabulations40.3%—

Multimodal Not comparable

Gemma 3 27B: 32.6 (#100), Grok 4 Fast: —

BenchmarkGemma 3 27BGrok 4 Fast
LMArena Vision1164—
GeoBench52%—

Multilingual Grok 4 Fast leads

Gemma 3 27B: 46.9 (#155), Grok 4 Fast: 51.3 (#111)

BenchmarkGemma 3 27BGrok 4 Fast
LMArena Non-English13341396
LMArena Chinese13461457
LMArena French13681431
LMArena German13621383
LMArena Japanese12871352
LMArena Korean13081357
LMArena Russian13491389
LMArena Spanish13491415

Instruction Following Grok 4 Fast leads

Gemma 3 27B: 70.6 (#160), Grok 4 Fast: 73.2 (#121)

BenchmarkGemma 3 27BGrok 4 Fast
LMArena Instruction Following13211387
LiveBench Instruction Following74.9%—

Long Context Grok 4 Fast leads

Gemma 3 27B: 27.6 (#293), Grok 4 Fast: 63.2 (#3)

BenchmarkGemma 3 27BGrok 4 Fast
Fiction.LiveBench33.3%94.4%
LMArena Longer Query13331415

Writing & Preference Grok 4 Fast leads

Gemma 3 27B: 52.5 (#168), Grok 4 Fast: 60.0 (#102)

BenchmarkGemma 3 27BGrok 4 Fast
LMArena Text13581407
LMArena Creative Writing13461387
LMArena Multi-Turn13451414
Short-Story Creative Writing79.9%—
EQ-Bench Creative Writing1266—
LiveBench Language34.6%—

Frequently asked questions

Is Gemma 3 27B better than Grok 4 Fast?

Grok 4 Fast is the stronger model overall, scoring 39.4 to 30.8 on the Noometry Index.

Is Gemma 3 27B or Grok 4 Fast better for coding?

Grok 4 Fast scores higher on coding benchmarks: 32.5 versus 22.5 in the Noometry coding category.

How many benchmarks do Gemma 3 27B and Grok 4 Fast share?

22 benchmarks have published results for both models. Gemma 3 27B has 43 scored results on Noometry and Grok 4 Fast has 30.

Related comparisons

Go deeper