Noometry

Model comparison

Gemini 2.5 Pro vs Gemma 3 27B

Gemini 2.5 Pro is the stronger model overall, scoring 45.0 to 30.8 on the Noometry Index. Gemma 3 27B costs 34× less per token, which makes it the better buy when Gemini 2.5 Pro's lead doesn't matter for your workload.

Last verified . 42 shared benchmarks.

Gemini 2.5 Pro Google

45.0

Rank #75 Confirmed

Gemma 3 27B Google

30.8

Rank #284 Confirmed

Summary

  • They share 42 benchmarks with published results for both. Gemini 2.5 Pro scores higher in 10 categories and Gemma 3 27B in 0 categories; 10 gaps are clear of the uncertainty.
  • The widest gap is in long context, where Gemini 2.5 Pro leads 59.8 to 27.6.
  • The biggest single-benchmark swing is Aider Polyglot: 83.1% for Gemini 2.5 Pro and 4.9% for Gemma 3 27B.
  • Gemma 3 27B is cheaper at $0.08 / $0.16 per million input/output tokens, against $1.25 / $10 for Gemini 2.5 Pro.
  • Gemini 2.5 Pro accepts more context: 1.05M tokens versus 131K.
  • Gemma 3 27B has downloadable open weights; the other is API-only.

Side by side

Gemini 2.5 ProGemma 3 27B
ProviderGoogleGoogle
Noometry Index45.030.8
Released2025-03-252025-03-11
WeightsProprietaryOpen
Context window1.05M131K
Max output66K8K
Input $ / M tokens$1.25$0.08
Output $ / M tokens$10$0.16
Results tracked7843

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Category by category

Coding Gemini 2.5 Pro leads

Gemini 2.5 Pro: 42.4 (#101), Gemma 3 27B: 22.5 (#334)

BenchmarkGemini 2.5 ProGemma 3 27B
Aider Polyglot83.1%4.9%
SciCode42.8%21.2%
LiveBench Coding85.9%39.9%
LMArena Coding14521322
SWE-bench Verified57.6%—
SWE-bench Verified (bash only)53.6%—
LMArena WebDev1227—
GSO3.9%—
WeirdML54%—
CadEval64%—
ALE-Bench785.52—
AlgoTune1.51—

Agentic & Tool Use Gemini 2.5 Pro leads

Gemini 2.5 Pro: 29.2 (#88), Gemma 3 27B: 25.1 (#110)

BenchmarkGemini 2.5 ProGemma 3 27B
Terminal-Bench32.6%—
Berkeley Function Calling Leaderboard—29.5%
GDPval23.3%—
Remote Labor Index0.8%—
TheAgentCompany30.3%—
τ²-bench Banking13.7%—
DeepResearch Bench42.8%—
BALROG43.3%—
LMArena Search1142—
METR Time Horizons55.4%—
Vending-Bench 2573.64—

Reasoning Gemini 2.5 Pro leads

Gemini 2.5 Pro: 28.8 (#99), Gemma 3 27B: 16.7 (#301)

BenchmarkGemini 2.5 ProGemma 3 27B
Kagi LLM Benchmark70.3%40.4%
CritPt2%0%
Chess Puzzles20%0%
LiveBench Reasoning89.8%43.8%
LMArena Hard Prompts14551340
DTBench82.4%52.5%
LiveBench Data Analysis79.9%51.5%
LMCA34.8%12.3%
Epoch Capabilities Index145.32130.04
LiveBench82.3%50%
ARC-AGI-24.9%—
SimpleBench62.4%—
ARC-AGI-141%—
EnigmaEval5.6%—
ForecastBench61.3—

Math Gemini 2.5 Pro leads

Gemini 2.5 Pro: 32.5 (#213), Gemma 3 27B: 25.9 (#265)

BenchmarkGemini 2.5 ProGemma 3 27B
OTIS Mock AIME 2024-202584.7%22.5%
LiveBench Math90.2%55.4%
LMArena Math14501312
MATH Level 595.9%74%
FrontierMath (Tiers 1-3)24.6%—
FrontierMath Tier 40%—
Omni-MATH41.6%—
FrontierMath (Feb 2025 set)14.1%—
FrontierMath Tier 4 (v1)4.2%—

Knowledge Gemini 2.5 Pro leads

Gemini 2.5 Pro: 56.0 (#46), Gemma 3 27B: 25.5 (#261)

BenchmarkGemini 2.5 ProGemma 3 27B
GPQA Diamond85.3%47.7%
Confabulations10.6%40.3%
Vectara Hallucination Rate7%7.4%
LMArena Expert14521304
Humanity's Last Exam21.6%—
MMLU-Pro86.3%—
GPQA (HELM)74.9%—

Multimodal Gemini 2.5 Pro leads

Gemini 2.5 Pro: 45.2 (#18), Gemma 3 27B: 32.6 (#100)

BenchmarkGemini 2.5 ProGemma 3 27B
LMArena Vision12631164
GeoBench86%52%
VPCT48%—
LMArena Document1421—
SpatialViz-Bench44.7%—

Multilingual Gemini 2.5 Pro leads

Gemini 2.5 Pro: 55.3 (#31), Gemma 3 27B: 46.9 (#155)

BenchmarkGemini 2.5 ProGemma 3 27B
LMArena Non-English14511334
LMArena Chinese15071346
LMArena French14721368
LMArena German14871362
LMArena Japanese14611287
LMArena Korean14341308
LMArena Russian14611349
LMArena Spanish14731349

Instruction Following Gemini 2.5 Pro leads

Gemini 2.5 Pro: 75.0 (#75), Gemma 3 27B: 70.6 (#160)

BenchmarkGemini 2.5 ProGemma 3 27B
LiveBench Instruction Following80.6%74.9%
LMArena Instruction Following14371321
IFEval84%—

Long Context Gemini 2.5 Pro leads

Gemini 2.5 Pro: 59.8 (#5), Gemma 3 27B: 27.6 (#293)

BenchmarkGemini 2.5 ProGemma 3 27B
Fiction.LiveBench91.7%33.3%
LMArena Longer Query14491333

Writing & Preference Gemini 2.5 Pro leads

Gemini 2.5 Pro: 63.7 (#62), Gemma 3 27B: 52.5 (#168)

BenchmarkGemini 2.5 ProGemma 3 27B
LMArena Text14581358
LMArena Creative Writing14541346
Short-Story Creative Writing83.8%79.9%
EQ-Bench Creative Writing14211266
LMArena Multi-Turn14531345
LiveBench Language67.8%34.6%
WildBench85.7%—

Frequently asked questions

Is Gemini 2.5 Pro better than Gemma 3 27B?

Gemini 2.5 Pro is the stronger model overall, scoring 45.0 to 30.8 on the Noometry Index. Gemma 3 27B costs 34× less per token, which makes it the better buy when Gemini 2.5 Pro's lead doesn't matter for your workload.

Which is cheaper, Gemini 2.5 Pro or Gemma 3 27B?

Gemma 3 27B is cheaper. It lists at $0.08 per million input tokens and $0.16 per million output tokens; Gemini 2.5 Pro lists at $1.25 and $10.

Is Gemini 2.5 Pro or Gemma 3 27B better for coding?

Gemini 2.5 Pro scores higher on coding benchmarks: 42.4 versus 22.5 in the Noometry coding category.

Which has the bigger context window?

Gemini 2.5 Pro does, with 1.05M tokens against 131K.

How many benchmarks do Gemini 2.5 Pro and Gemma 3 27B share?

42 benchmarks have published results for both models. Gemini 2.5 Pro has 78 scored results on Noometry and Gemma 3 27B has 43.

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