Noometry

Model comparison

Gemini 2.5 Pro vs Gemma 2 27B

Gemini 2.5 Pro is the stronger model overall, scoring 44.9 to 29.2 on the Noometry Index. Gemma 2 27B costs 5.3× less per token, which makes it the better buy when Gemini 2.5 Pro's lead doesn't matter for your workload.

Last verified . 31 shared benchmarks.

Gemini 2.5 Pro Google

44.9

Rank #67 Confirmed

Gemma 2 27B Google

29.2

Rank #302 Confirmed

Summary

  • They share 31 benchmarks with published results for both. Gemini 2.5 Pro scores higher in 8 categories and Gemma 2 27B in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Gemini 2.5 Pro leads 55.8 to 18.9.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 84.7% for Gemini 2.5 Pro and 1.4% for Gemma 2 27B.
  • Gemma 2 27B is cheaper at $0.65 / $0.65 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 8K.
  • Gemma 2 27B has downloadable open weights; the other is API-only.

Side by side

Gemini 2.5 ProGemma 2 27B
ProviderGoogleGoogle
Noometry Index44.929.2
Released2025-03-252024-06-24
WeightsProprietaryOpen
Context window1.05M8K
Max output66K2K
Input $ / M tokens$1.25$0.65
Output $ / M tokens$10$0.65
Results tracked7834

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Category by category

Coding Gemini 2.5 Pro leads

Gemini 2.5 Pro: 42.8 (#86), Gemma 2 27B: 33.5 (#243)

BenchmarkGemini 2.5 ProGemma 2 27B
LiveBench Coding85.9%36%
LMArena Coding14521211
SWE-bench Verified57.6%—
SWE-bench Verified (bash only)53.6%—
Aider Polyglot83.1%—
LMArena WebDev1227—
SciCode42.8%—
GSO3.9%—
WeirdML54%—
BigCodeBench Instruct—42.8%
BigCodeBench Complete—52.5%
CadEval64%—
ALE-Bench785.52—
AlgoTune1.51—

Agentic & Tool Use Not comparable

Gemini 2.5 Pro: 29.1 (#81), Gemma 2 27B: —

BenchmarkGemini 2.5 ProGemma 2 27B
Terminal-Bench32.6%—
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 (#85), Gemma 2 27B: 14.8 (#313)

BenchmarkGemini 2.5 ProGemma 2 27B
LiveBench Reasoning89.8%28.1%
LMArena Hard Prompts14551199
DTBench82.4%48%
LiveBench Data Analysis79.9%47.9%
LMCA34.8%7.1%
Epoch Capabilities Index145.32122.06
LiveBench82.3%38.2%
ARC-AGI-24.9%—
SimpleBench62.4%—
Kagi LLM Benchmark70.3%—
ARC-AGI-141%—
CritPt2%—
Chess Puzzles20%—
EnigmaEval5.6%—
ForecastBench61.3—

Math Gemini 2.5 Pro leads

Gemini 2.5 Pro: 31.9 (#191), Gemma 2 27B: 10.0 (#306)

BenchmarkGemini 2.5 ProGemma 2 27B
OTIS Mock AIME 2024-202584.7%1.4%
LiveBench Math90.2%26.5%
LMArena Math14501212
MATH Level 595.9%27.9%
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: 55.8 (#41), Gemma 2 27B: 18.9 (#275)

BenchmarkGemini 2.5 ProGemma 2 27B
GPQA Diamond85.3%36.5%
Confabulations10.6%27.1%
LMArena Expert14521172
Humanity's Last Exam21.6%—
MMLU-Pro86.3%—
Vectara Hallucination Rate7%—
GPQA (HELM)74.9%—
MMLU—75.7%

Multimodal Not comparable

Gemini 2.5 Pro: 44.5 (#16), Gemma 2 27B: —

BenchmarkGemini 2.5 ProGemma 2 27B
LMArena Vision1263—
GeoBench86%—
VPCT48%—
LMArena Document1421—
SpatialViz-Bench44.7%—

Multilingual Gemini 2.5 Pro leads

Gemini 2.5 Pro: 55.5 (#30), Gemma 2 27B: 38.8 (#221)

BenchmarkGemini 2.5 ProGemma 2 27B
LMArena Non-English14521217
LMArena Chinese15071221
LMArena French14731246
LMArena German14871209
LMArena Japanese14621175
LMArena Korean14351174
LMArena Russian14601234
LMArena Spanish14731228

Instruction Following Gemini 2.5 Pro leads

Gemini 2.5 Pro: 75.2 (#71), Gemma 2 27B: 60.7 (#244)

BenchmarkGemini 2.5 ProGemma 2 27B
LiveBench Instruction Following80.6%58.1%
LMArena Instruction Following14361206
IFEval84%—

Long Context Gemini 2.5 Pro leads

Gemini 2.5 Pro: 59.7 (#5), Gemma 2 27B: 37.3 (#213)

BenchmarkGemini 2.5 ProGemma 2 27B
LMArena Longer Query14491231
Fiction.LiveBench91.7%—

Writing & Preference Gemini 2.5 Pro leads

Gemini 2.5 Pro: 63.9 (#60), Gemma 2 27B: 44.4 (#220)

BenchmarkGemini 2.5 ProGemma 2 27B
LMArena Text14581231
LMArena Creative Writing14531241
LMArena Multi-Turn14531224
LiveBench Language67.8%32.6%
Short-Story Creative Writing83.8%—
EQ-Bench Creative Writing1421—
WildBench85.7%—

Frequently asked questions

Is Gemini 2.5 Pro better than Gemma 2 27B?

Gemini 2.5 Pro is the stronger model overall, scoring 44.9 to 29.2 on the Noometry Index. Gemma 2 27B costs 5.3× 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 2 27B?

Gemma 2 27B is cheaper. It lists at $0.65 per million input tokens and $0.65 per million output tokens; Gemini 2.5 Pro lists at $1.25 and $10.

Is Gemini 2.5 Pro or Gemma 2 27B better for coding?

Gemini 2.5 Pro scores higher on coding benchmarks: 42.8 versus 33.5 in the Noometry coding category.

Which has the bigger context window?

Gemini 2.5 Pro does, with 1.05M tokens against 8K.

How many benchmarks do Gemini 2.5 Pro and Gemma 2 27B share?

31 benchmarks have published results for both models. Gemini 2.5 Pro has 78 scored results on Noometry and Gemma 2 27B has 34.

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