Model comparison

Gemma 3 27B vs o4-mini

o4-mini is the stronger model overall, scoring 41.6 to 30.5 on the Noometry Index. Gemma 3 27B costs 19× less per token, which makes it the better buy when o4-mini's lead doesn't matter for your workload.

Last verified . 34 shared benchmarks.

Gemma 3 27B Google

30.5

Rank #277 Confirmed

o4-mini OpenAI

41.6

Rank #119 Confirmed

Summary

  • They share 34 benchmarks with published results for both. Gemma 3 27B scores higher in 0 categories and o4-mini in 10 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in coding, where o4-mini leads 41.6 to 22.1.
  • The biggest single-benchmark swing is Aider Polyglot: 4.9% for Gemma 3 27B and 72% for o4-mini.
  • Gemma 3 27B is cheaper at $0.08 / $0.16 per million input/output tokens, against $1.10 / $4.40 for o4-mini.
  • o4-mini accepts more context: 200K tokens versus 131K.
  • Gemma 3 27B has downloadable open weights; the other is API-only.

Side by side

Gemma 3 27B and o4-mini specifications
Gemma 3 27Bo4-mini
ProviderGoogleOpenAI
Noometry Index30.541.6
Released2025-03-112025-04-16
WeightsOpenProprietary
Context window131K200K
Max output8K100K
Input $ / M tokens$0.08$1.10
Output $ / M tokens$0.16$4.40
Results tracked4360

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Category by category

Coding o4-mini leads

Gemma 3 27B: 22.1 (#329), o4-mini: 41.6 (#110)

Coding benchmarks
BenchmarkGemma 3 27Bo4-mini
Aider Polyglot4.9%72%
LMArena Coding13221369
SWE-bench Verified (bash only)—45%
SciCode21.2%—
GSO—3.6%
WeirdML—52.6%
LiveBench Coding39.9%—
CadEval—62%
ALE-Bench—826.17
AlgoTune—1.72

Agentic & Tool Use o4-mini leads

Gemma 3 27B: 24.9 (#105), o4-mini: 32.3 (#57)

Agentic & Tool Use benchmarks
BenchmarkGemma 3 27Bo4-mini
Berkeley Function Calling Leaderboard29.5%53.2%
GDPval—25.3%
METR Time Horizons—63.9%

Reasoning o4-mini leads

Gemma 3 27B: 16.3 (#297), o4-mini: 24.6 (#143)

Reasoning benchmarks
BenchmarkGemma 3 27Bo4-mini
Kagi LLM Benchmark40.4%67.6%
CritPt0%0.6%
Chess Puzzles0%26%
LMArena Hard Prompts13401351
DTBench52.5%77.6%
LMCA12.3%26.5%
Epoch Capabilities Index130.04145.63
ARC-AGI-2—6.1%
SimpleBench—38.7%
ARC-AGI-1—58.7%
EnigmaEval—9.2%
LiveBench Reasoning43.8%—
Mystery Game Puzzles—5%
LiveBench Data Analysis51.5%—
ForecastBench—61.8
LiveBench50%—

Math o4-mini leads

Gemma 3 27B: 24.4 (#261), o4-mini: 40.2 (#79)

Math benchmarks
BenchmarkGemma 3 27Bo4-mini
OTIS Mock AIME 2024-202522.5%81.7%
LMArena Math13121390
MATH Level 574%97.8%
FrontierMath (Tiers 1-3)—36.1%
FrontierMath Tier 4—4.9%
Omni-MATH—72%
LiveBench Math55.4%—
FrontierMath (Feb 2025 set)—24.8%
FrontierMath Tier 4 (v1)—6.3%

Knowledge o4-mini leads

Gemma 3 27B: 25.4 (#256), o4-mini: 43.5 (#83)

Knowledge benchmarks
BenchmarkGemma 3 27Bo4-mini
GPQA Diamond47.7%79.6%
Confabulations40.3%15.8%
Vectara Hallucination Rate7.4%18.6%
LMArena Expert13031344
Humanity's Last Exam—18.1%
SimpleQA Verified—19.6%
MMLU-Pro—82%
GPQA (HELM)—73.5%

Multimodal o4-mini leads

Gemma 3 27B: 32.0 (#94), o4-mini: 39.5 (#46)

Multimodal benchmarks
BenchmarkGemma 3 27Bo4-mini
LMArena Vision11651194
GeoBench52%64%
VPCT—57.5%

Multilingual Too close to call

Gemma 3 27B: 47.0 (#150), o4-mini: 47.2 (#149)

Multilingual benchmarks
BenchmarkGemma 3 27Bo4-mini
LMArena Non-English13341336
LMArena Chinese13471355
LMArena French13681362
LMArena German13621336
LMArena Japanese12871308
LMArena Korean13081313
LMArena Russian13491334
LMArena Spanish13481346

Instruction Following o4-mini leads

Gemma 3 27B: 70.8 (#155), o4-mini: 75.4 (#63)

Instruction Following benchmarks
BenchmarkGemma 3 27Bo4-mini
LMArena Instruction Following13211321
LiveBench Instruction Following74.9%—
IFEval—92.8%

Long Context o4-mini leads

Gemma 3 27B: 27.6 (#288), o4-mini: 45.5 (#31)

Long Context benchmarks
BenchmarkGemma 3 27Bo4-mini
Fiction.LiveBench33.3%77.8%
LMArena Longer Query13331315

Writing & Preference o4-mini leads

Gemma 3 27B: 52.7 (#161), o4-mini: 54.2 (#148)

Writing & Preference benchmarks
BenchmarkGemma 3 27Bo4-mini
LMArena Text13581353
LMArena Creative Writing13461294
Short-Story Creative Writing79.9%75%
LMArena Multi-Turn13441350
EQ-Bench Creative Writing1266—
WildBench—85.4%
LiveBench Language34.6%—

Frequently asked questions

Is Gemma 3 27B better than o4-mini?

o4-mini is the stronger model overall, scoring 41.6 to 30.5 on the Noometry Index. Gemma 3 27B costs 19× less per token, which makes it the better buy when o4-mini's lead doesn't matter for your workload.

Which is cheaper, Gemma 3 27B or o4-mini?

Gemma 3 27B is cheaper. It lists at $0.08 per million input tokens and $0.16 per million output tokens; o4-mini lists at $1.10 and $4.40.

Is Gemma 3 27B or o4-mini better for coding?

o4-mini scores higher on coding benchmarks: 41.6 versus 22.1 in the Noometry coding category.

Which has the bigger context window?

o4-mini does, with 200K tokens against 131K.

How many benchmarks do Gemma 3 27B and o4-mini share?

34 benchmarks have published results for both models. Gemma 3 27B has 43 scored results on Noometry and o4-mini has 60.

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