Noometry

Model comparison

Gemma 3 27B vs Grok 4.3

Grok 4.3 is the stronger model overall, scoring 43.6 to 30.5 on the Noometry Index. Gemma 3 27B costs 16× less per token, which makes it the better buy when Grok 4.3's lead doesn't matter for your workload.

Last verified . 26 shared benchmarks.

Gemma 3 27B Google

30.5

Rank #277 Confirmed

Grok 4.3 xAI

43.6

Rank #80 Confirmed

Summary

  • They share 26 benchmarks with published results for both. Gemma 3 27B scores higher in 1 category and Grok 4.3 in 9 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Grok 4.3 leads 52.5 to 25.4.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 22.5% for Gemma 3 27B and 93.3% for Grok 4.3.
  • Gemma 3 27B is cheaper at $0.08 / $0.16 per million input/output tokens, against $1.25 / $2.50 for Grok 4.3.
  • Grok 4.3 accepts more context: 1M tokens versus 131K.
  • Gemma 3 27B has downloadable open weights; the other is API-only.

Side by side

Gemma 3 27BGrok 4.3
ProviderGooglexAI
Noometry Index30.543.6
Released2025-03-112026-04-17
WeightsOpenProprietary
Context window131K1M
Max output8K30K
Input $ / M tokens$0.08$1.25
Output $ / M tokens$0.16$2.50
Results tracked4340

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Category by category

Coding Grok 4.3 leads

Gemma 3 27B: 22.1 (#329), Grok 4.3: 41.3 (#117)

BenchmarkGemma 3 27BGrok 4.3
SciCode21.2%47.3%
LMArena Coding13221415
Aider Polyglot4.9%—
LMArena WebDev—1357
WeirdML—49.9%
LiveBench Coding39.9%—
ALE-Bench—944.17

Agentic & Tool Use Grok 4.3 leads

Gemma 3 27B: 24.9 (#105), Grok 4.3: 27.6 (#93)

BenchmarkGemma 3 27BGrok 4.3
Berkeley Function Calling Leaderboard29.5%—
GDP.pdf—8%
LMArena Search—1165
Vending-Bench 2—35.26

Reasoning Grok 4.3 leads

Gemma 3 27B: 16.3 (#297), Grok 4.3: 34.9 (#60)

BenchmarkGemma 3 27BGrok 4.3
CritPt0%8%
Chess Puzzles0%25%
LMArena Hard Prompts13401397
DTBench52.5%90.7%
LMCA12.3%38.3%
Epoch Capabilities Index130.04149.13
Kagi LLM Benchmark40.4%—
NYT Connections (extended)—55.2%
LiveBench Reasoning43.8%—
LiveBench Data Analysis51.5%—
ForecastBench—60.3
LiveBench50%—

Math Grok 4.3 leads

Gemma 3 27B: 24.4 (#261), Grok 4.3: 45.8 (#60)

BenchmarkGemma 3 27BGrok 4.3
OTIS Mock AIME 2024-202522.5%93.3%
LMArena Math13121388
FrontierMath (Tiers 1-3)—42.8%
FrontierMath Tier 4—14.6%
ProofBench—11%
LiveBench Math55.4%—
MATH Level 574%—

Knowledge Grok 4.3 leads

Gemma 3 27B: 25.4 (#256), Grok 4.3: 52.5 (#57)

BenchmarkGemma 3 27BGrok 4.3
GPQA Diamond47.7%88.8%
LMArena Expert13031385
SimpleQA Verified—33.2%
Confabulations40.3%—
Vectara Hallucination Rate7.4%—

Multimodal Too close to call

Gemma 3 27B: 32.0 (#94), Grok 4.3: 31.6 (#96)

BenchmarkGemma 3 27BGrok 4.3
LMArena Vision11651231
GeoBench52%—
Blueprint-Bench 2—0%

Multilingual Grok 4.3 leads

Gemma 3 27B: 47.0 (#150), Grok 4.3: 50.7 (#114)

BenchmarkGemma 3 27BGrok 4.3
LMArena Non-English13341385
LMArena Chinese13471423
LMArena French13681412
LMArena German13621395
LMArena Japanese12871379
LMArena Korean13081357
LMArena Russian13491399
LMArena Spanish13481402

Instruction Following Grok 4.3 leads

Gemma 3 27B: 70.8 (#155), Grok 4.3: 72.3 (#135)

BenchmarkGemma 3 27BGrok 4.3
LMArena Instruction Following13211366
LiveBench Instruction Following74.9%—

Long Context Grok 4.3 leads

Gemma 3 27B: 27.6 (#288), Grok 4.3: 42.5 (#118)

BenchmarkGemma 3 27BGrok 4.3
LMArena Longer Query13331393
Fiction.LiveBench33.3%—

Writing & Preference Grok 4.3 leads

Gemma 3 27B: 52.7 (#161), Grok 4.3: 58.6 (#112)

BenchmarkGemma 3 27BGrok 4.3
LMArena Text13581397
LMArena Creative Writing13461380
LMArena Multi-Turn13441406
Short-Story Creative Writing79.9%—
EQ-Bench Creative Writing1266—
EQ-Bench 4—1075
LiveBench Language34.6%—

Frequently asked questions

Is Gemma 3 27B better than Grok 4.3?

Grok 4.3 is the stronger model overall, scoring 43.6 to 30.5 on the Noometry Index. Gemma 3 27B costs 16× less per token, which makes it the better buy when Grok 4.3's lead doesn't matter for your workload.

Which is cheaper, Gemma 3 27B or Grok 4.3?

Gemma 3 27B is cheaper. It lists at $0.08 per million input tokens and $0.16 per million output tokens; Grok 4.3 lists at $1.25 and $2.50.

Is Gemma 3 27B or Grok 4.3 better for coding?

Grok 4.3 scores higher on coding benchmarks: 41.3 versus 22.1 in the Noometry coding category.

Which has the bigger context window?

Grok 4.3 does, with 1M tokens against 131K.

How many benchmarks do Gemma 3 27B and Grok 4.3 share?

26 benchmarks have published results for both models. Gemma 3 27B has 43 scored results on Noometry and Grok 4.3 has 40.

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