Noometry

Model comparison

Gemma 2 27B vs Grok 4 Fast

Grok 4 Fast is the stronger model overall, scoring 39.0 to 29.2 on the Noometry Index.

Last verified . 19 shared benchmarks.

Gemma 2 27B Google

29.2

Rank #302 Confirmed

Grok 4 Fast xAI

39.0

Rank #164 Confirmed

Summary

  • They share 19 benchmarks with published results for both. Gemma 2 27B scores higher in 1 category and Grok 4 Fast in 7 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where Grok 4 Fast leads 36.1 to 10.0.
  • The biggest single-benchmark swing is DTBench: 48% for Gemma 2 27B and 82.7% for Grok 4 Fast.
  • Gemma 2 27B has downloadable open weights; the other is API-only.

Side by side

Gemma 2 27BGrok 4 Fast
ProviderGooglexAI
Noometry Index29.239.0
Released2024-06-242025-09-19
WeightsOpenProprietary
Context window8K—
Max output2K—
Input $ / M tokens$0.65—
Output $ / M tokens$0.65—
Results tracked3430

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Category by category

Coding Gemma 2 27B leads

Gemma 2 27B: 33.5 (#243), Grok 4 Fast: 32.3 (#264)

BenchmarkGemma 2 27BGrok 4 Fast
LMArena Coding12111429
LMArena WebDev—1160
WeirdML—42.9%
BigCodeBench Instruct42.8%—
LiveBench Coding36%—
BigCodeBench Complete52.5%—

Agentic & Tool Use Not comparable

Gemma 2 27B: —, Grok 4 Fast: 29.3 (#80)

BenchmarkGemma 2 27BGrok 4 Fast
τ²-bench Banking—15.7%
Cybench—30%
LMArena Search—1171

Reasoning Grok 4 Fast leads

Gemma 2 27B: 14.8 (#313), Grok 4 Fast: 22.5 (#179)

BenchmarkGemma 2 27BGrok 4 Fast
LMArena Hard Prompts11991413
DTBench48%82.7%
Epoch Capabilities Index122.06144.21
ARC-AGI-2—5.3%
Kagi LLM Benchmark—66.1%
ARC-AGI-1—48.5%
LiveBench Reasoning28.1%—
LiveBench Data Analysis47.9%—
LMCA7.1%—
ForecastBench—60.5
LiveBench38.2%—

Math Grok 4 Fast leads

Gemma 2 27B: 10.0 (#306), Grok 4 Fast: 36.1 (#126)

BenchmarkGemma 2 27BGrok 4 Fast
LMArena Math12121419
OTIS Mock AIME 2024-20251.4%—
LiveBench Math26.5%—
MATH Level 527.9%—

Knowledge Grok 4 Fast leads

Gemma 2 27B: 18.9 (#275), Grok 4 Fast: 31.5 (#211)

BenchmarkGemma 2 27BGrok 4 Fast
LMArena Expert11721411
GPQA Diamond36.5%—
Confabulations27.1%—
Vectara Hallucination Rate—19.7%
MMLU75.7%—

Multilingual Grok 4 Fast leads

Gemma 2 27B: 38.8 (#221), Grok 4 Fast: 51.5 (#106)

BenchmarkGemma 2 27BGrok 4 Fast
LMArena Non-English12171397
LMArena Chinese12211458
LMArena French12461433
LMArena German12091383
LMArena Japanese11751358
LMArena Korean11741359
LMArena Russian12341387
LMArena Spanish12281414

Instruction Following Grok 4 Fast leads

Gemma 2 27B: 60.7 (#244), Grok 4 Fast: 73.4 (#116)

BenchmarkGemma 2 27BGrok 4 Fast
LMArena Instruction Following12061388
LiveBench Instruction Following58.1%—

Long Context Grok 4 Fast leads

Gemma 2 27B: 37.3 (#213), Grok 4 Fast: 63.2 (#3)

BenchmarkGemma 2 27BGrok 4 Fast
LMArena Longer Query12311415
Fiction.LiveBench—94.4%

Writing & Preference Grok 4 Fast leads

Gemma 2 27B: 44.4 (#220), Grok 4 Fast: 60.2 (#96)

BenchmarkGemma 2 27BGrok 4 Fast
LMArena Text12311407
LMArena Creative Writing12411388
LMArena Multi-Turn12241414
LiveBench Language32.6%—

Frequently asked questions

Is Gemma 2 27B better than Grok 4 Fast?

Grok 4 Fast is the stronger model overall, scoring 39.0 to 29.2 on the Noometry Index.

Is Gemma 2 27B or Grok 4 Fast better for coding?

Gemma 2 27B scores higher on coding benchmarks: 33.5 versus 32.3 in the Noometry coding category.

How many benchmarks do Gemma 2 27B and Grok 4 Fast share?

19 benchmarks have published results for both models. Gemma 2 27B has 34 scored results on Noometry and Grok 4 Fast has 30.

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