Noometry

Model comparison

Gemini 3.1 Pro Preview vs Gemma 3 27B

Gemini 3.1 Pro Preview is the stronger model overall, scoring 56.7 to 30.8 on the Noometry Index. Gemma 3 27B costs 45× less per token, which makes it the better buy when Gemini 3.1 Pro Preview's lead doesn't matter for your workload.

Last verified . 28 shared benchmarks.

Gemini 3.1 Pro Preview Google

56.7

Rank #23 Confirmed

Gemma 3 27B Google

30.8

Rank #284 Confirmed

Summary

  • They share 28 benchmarks with published results for both. Gemini 3.1 Pro Preview scores higher in 10 categories and Gemma 3 27B in 0 categories; 10 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Gemini 3.1 Pro Preview leads 71.7 to 16.7.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 95.6% for Gemini 3.1 Pro Preview and 22.5% for Gemma 3 27B.
  • Gemma 3 27B is cheaper at $0.08 / $0.16 per million input/output tokens, against $2 / $12 for Gemini 3.1 Pro Preview.
  • Gemini 3.1 Pro Preview accepts more context: 1.05M tokens versus 131K.
  • Gemma 3 27B has downloadable open weights; the other is API-only.

Side by side

Gemini 3.1 Pro PreviewGemma 3 27B
ProviderGoogleGoogle
Noometry Index56.730.8
Released2026-02-192025-03-11
WeightsProprietaryOpen
Context window1.05M131K
Max output66K8K
Input $ / M tokens$2$0.08
Output $ / M tokens$12$0.16
Results tracked7143

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Category by category

Coding Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 42.5 (#99), Gemma 3 27B: 22.5 (#334)

BenchmarkGemini 3.1 Pro PreviewGemma 3 27B
SciCode58.9%21.2%
LMArena Coding14841322
SWE-bench Verified75.6%—
DeepSWE11.7%—
Aider Polyglot—4.9%
LMArena WebDev1447—
GSO22.6%—
WeirdML72.1%—
LiveBench Coding—39.9%
MirrorCode8.9%—
ALE-Bench1,161—
AlgoTune2.02—

Agentic & Tool Use Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 37.7 (#34), Gemma 3 27B: 25.1 (#110)

BenchmarkGemini 3.1 Pro PreviewGemma 3 27B
Terminal-Bench80.2%—
APEX-Agents35.3%—
Berkeley Function Calling Leaderboard—29.5%
τ²-bench Banking26%—
DeepResearch Bench47.8%—
PostTrainBench22%—
BALROG57%—
ExploitBench26.1%—
GBAEval0.8%—
GDP.pdf17%—
LMArena Search1211—
METR Time Horizons77%—
Vending-Bench 23,774—

Reasoning Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 71.7 (#12), Gemma 3 27B: 16.7 (#301)

BenchmarkGemini 3.1 Pro PreviewGemma 3 27B
CritPt17.7%0%
Chess Puzzles55%0%
LMArena Hard Prompts14851340
DTBench97.1%52.5%
LMCA53.8%12.3%
Epoch Capabilities Index154.77130.04
ARC-AGI-277.1%—
SimpleBench79.6%—
Kagi LLM Benchmark—40.4%
NYT Connections (extended)97.4%—
ARC-AGI-198%—
EnigmaEval36.8%—
Thematic Generalization79.4%—
EBR-Bench14.3%—
LiveBench Reasoning—43.8%
Mystery Game Puzzles34%—
LiveBench Data Analysis—51.5%
ForecastBench59—
LiveBench—50%

Math Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 62.1 (#34), Gemma 3 27B: 25.9 (#265)

BenchmarkGemini 3.1 Pro PreviewGemma 3 27B
OTIS Mock AIME 2024-202595.6%22.5%
LMArena Math14851312
FrontierMath (Tiers 1-3)59.6%—
FrontierMath Tier 426.8%—
MathArena Final-Answer Competitions86.5%—
ProofBench26%—
LiveBench Math—55.4%
MATH Level 5—74%
FrontierMath (Feb 2025 set)36.9%—
FrontierMath Tier 4 (v1)16.7%—

Knowledge Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 71.8 (#3), Gemma 3 27B: 25.5 (#261)

BenchmarkGemini 3.1 Pro PreviewGemma 3 27B
GPQA Diamond94.4%47.7%
Vectara Hallucination Rate10.4%7.4%
LMArena Expert14851304
Humanity's Last Exam46.4%—
SimpleQA Verified73.5%—
Confabulations—40.3%

Multimodal Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 37.9 (#69), Gemma 3 27B: 32.6 (#100)

BenchmarkGemini 3.1 Pro PreviewGemma 3 27B
LMArena Vision12961164
GeoBench—52%
Blueprint-Bench 226.5%—
Furniture Assembly26.7%—
LMArena Document1444—

Multilingual Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 57.0 (#12), Gemma 3 27B: 46.9 (#155)

BenchmarkGemini 3.1 Pro PreviewGemma 3 27B
LMArena Non-English14771334
LMArena Chinese15291346
LMArena French14871368
LMArena German14911362
LMArena Japanese14931287
LMArena Korean14551308
LMArena Russian14981349
LMArena Spanish14791349

Instruction Following Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 77.0 (#32), Gemma 3 27B: 70.6 (#160)

BenchmarkGemini 3.1 Pro PreviewGemma 3 27B
LMArena Instruction Following14661321
LiveBench Instruction Following—74.9%

Long Context Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 47.4 (#18), Gemma 3 27B: 27.6 (#293)

BenchmarkGemini 3.1 Pro PreviewGemma 3 27B
LMArena Longer Query14831333
Fiction.LiveBench—33.3%
CL-bench20.8%—
CL-bench Life16.9%—

Writing & Preference Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 66.1 (#37), Gemma 3 27B: 52.5 (#168)

BenchmarkGemini 3.1 Pro PreviewGemma 3 27B
LMArena Text14811358
LMArena Creative Writing14821346
EQ-Bench Creative Writing14911266
LMArena Multi-Turn14881345
Short-Story Creative Writing—79.9%
EQ-Bench 41142—
LiveBench Language—34.6%

Frequently asked questions

Is Gemini 3.1 Pro Preview better than Gemma 3 27B?

Gemini 3.1 Pro Preview is the stronger model overall, scoring 56.7 to 30.8 on the Noometry Index. Gemma 3 27B costs 45× less per token, which makes it the better buy when Gemini 3.1 Pro Preview's lead doesn't matter for your workload.

Which is cheaper, Gemini 3.1 Pro Preview 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 3.1 Pro Preview lists at $2 and $12.

Is Gemini 3.1 Pro Preview or Gemma 3 27B better for coding?

Gemini 3.1 Pro Preview scores higher on coding benchmarks: 42.5 versus 22.5 in the Noometry coding category.

Which has the bigger context window?

Gemini 3.1 Pro Preview does, with 1.05M tokens against 131K.

How many benchmarks do Gemini 3.1 Pro Preview and Gemma 3 27B share?

28 benchmarks have published results for both models. Gemini 3.1 Pro Preview has 71 scored results on Noometry and Gemma 3 27B has 43.

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