Model comparison

Gemma 3 27B vs GPT-5.4 nano

GPT-5.4 nano is the stronger model overall, scoring 41.9 to 30.5 on the Noometry Index. Gemma 3 27B costs 4.6× less per token, which makes it the better buy when GPT-5.4 nano's lead doesn't matter for your workload.

Last verified . 28 shared benchmarks.

Gemma 3 27B Google

30.5

Rank #277 Confirmed

GPT-5.4 nano OpenAI

41.9

Rank #111 Confirmed

Summary

  • They share 28 benchmarks with published results for both. Gemma 3 27B scores higher in 0 categories and GPT-5.4 nano in 9 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in coding, where GPT-5.4 nano leads 43.1 to 22.1.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 22.5% for Gemma 3 27B and 87.8% for GPT-5.4 nano.
  • Gemma 3 27B is cheaper at $0.08 / $0.16 per million input/output tokens, against $0.20 / $1.25 for GPT-5.4 nano.
  • GPT-5.4 nano accepts more context: 400K tokens versus 131K.
  • Gemma 3 27B has downloadable open weights; the other is API-only.

Side by side

Gemma 3 27B and GPT-5.4 nano specifications
Gemma 3 27BGPT-5.4 nano
ProviderGoogleOpenAI
Noometry Index30.541.9
Released2025-03-112026-03-17
WeightsOpenProprietary
Context window131K400K
Max output8K128K
Input $ / M tokens$0.08$0.20
Output $ / M tokens$0.16$1.25
Results tracked4340

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Category by category

Coding GPT-5.4 nano leads

Gemma 3 27B: 22.1 (#329), GPT-5.4 nano: 43.1 (#82)

Coding benchmarks
BenchmarkGemma 3 27BGPT-5.4 nano
SciCode21.2%46.9%
LMArena Coding13221404
Aider Polyglot4.9%—
WeirdML—49.2%
LiveBench Coding39.9%—
ALE-Bench—1,005

Agentic & Tool Use Not comparable

Gemma 3 27B: 24.9 (#105), GPT-5.4 nano: —

Agentic & Tool Use benchmarks
BenchmarkGemma 3 27BGPT-5.4 nano
Berkeley Function Calling Leaderboard29.5%—

Reasoning GPT-5.4 nano leads

Gemma 3 27B: 16.3 (#297), GPT-5.4 nano: 23.8 (#159)

Reasoning benchmarks
BenchmarkGemma 3 27BGPT-5.4 nano
Kagi LLM Benchmark40.4%39.7%
CritPt0%9.3%
Chess Puzzles0%30%
LMArena Hard Prompts13401380
DTBench52.5%80.3%
LMCA12.3%36.9%
Epoch Capabilities Index130.04145.78
ARC-AGI-2—5.7%
ARC-AGI-1—51.5%
LiveBench Reasoning43.8%—
Mystery Game Puzzles—9%
LiveBench Data Analysis51.5%—
ForecastBench—57.3
LiveBench50%—

Math GPT-5.4 nano leads

Gemma 3 27B: 24.4 (#261), GPT-5.4 nano: 40.7 (#76)

Math benchmarks
BenchmarkGemma 3 27BGPT-5.4 nano
OTIS Mock AIME 2024-202522.5%87.8%
LMArena Math13121406
FrontierMath (Tiers 1-3)—44.9%
FrontierMath Tier 4—12.2%
ProofBench—5%
LiveBench Math55.4%—
MATH Level 574%—
FrontierMath (Feb 2025 set)—25.9%
FrontierMath Tier 4 (v1)—6.3%

Knowledge GPT-5.4 nano leads

Gemma 3 27B: 25.4 (#256), GPT-5.4 nano: 41.8 (#94)

Knowledge benchmarks
BenchmarkGemma 3 27BGPT-5.4 nano
GPQA Diamond47.7%78.5%
Vectara Hallucination Rate7.4%3.1%
LMArena Expert13031397
SimpleQA Verified—11.7%
Confabulations40.3%—

Multimodal GPT-5.4 nano leads

Gemma 3 27B: 32.0 (#94), GPT-5.4 nano: 36.0 (#73)

Multimodal benchmarks
BenchmarkGemma 3 27BGPT-5.4 nano
LMArena Vision11651196
GeoBench52%—

Multilingual GPT-5.4 nano leads

Gemma 3 27B: 47.0 (#150), GPT-5.4 nano: 48.8 (#136)

Multilingual benchmarks
BenchmarkGemma 3 27BGPT-5.4 nano
LMArena Non-English13341359
LMArena Chinese13471391
LMArena French13681396
LMArena German13621368
LMArena Japanese12871342
LMArena Korean13081321
LMArena Russian13491363
LMArena Spanish13481368

Instruction Following GPT-5.4 nano leads

Gemma 3 27B: 70.8 (#155), GPT-5.4 nano: 72.1 (#139)

Instruction Following benchmarks
BenchmarkGemma 3 27BGPT-5.4 nano
LMArena Instruction Following13211362
LiveBench Instruction Following74.9%—

Long Context GPT-5.4 nano leads

Gemma 3 27B: 27.6 (#288), GPT-5.4 nano: 41.6 (#131)

Long Context benchmarks
BenchmarkGemma 3 27BGPT-5.4 nano
LMArena Longer Query13331365
Fiction.LiveBench33.3%—

Writing & Preference GPT-5.4 nano leads

Gemma 3 27B: 52.7 (#161), GPT-5.4 nano: 55.9 (#137)

Writing & Preference benchmarks
BenchmarkGemma 3 27BGPT-5.4 nano
LMArena Text13581372
LMArena Creative Writing13461313
LMArena Multi-Turn13441382
Short-Story Creative Writing79.9%—
EQ-Bench Creative Writing1266—
LiveBench Language34.6%—

Frequently asked questions

Is Gemma 3 27B better than GPT-5.4 nano?

GPT-5.4 nano is the stronger model overall, scoring 41.9 to 30.5 on the Noometry Index. Gemma 3 27B costs 4.6× less per token, which makes it the better buy when GPT-5.4 nano's lead doesn't matter for your workload.

Which is cheaper, Gemma 3 27B or GPT-5.4 nano?

Gemma 3 27B is cheaper. It lists at $0.08 per million input tokens and $0.16 per million output tokens; GPT-5.4 nano lists at $0.20 and $1.25.

Is Gemma 3 27B or GPT-5.4 nano better for coding?

GPT-5.4 nano scores higher on coding benchmarks: 43.1 versus 22.1 in the Noometry coding category.

Which has the bigger context window?

GPT-5.4 nano does, with 400K tokens against 131K.

How many benchmarks do Gemma 3 27B and GPT-5.4 nano share?

28 benchmarks have published results for both models. Gemma 3 27B has 43 scored results on Noometry and GPT-5.4 nano has 40.

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