Model comparison

Gemma 3 12B vs Phi 3 Small 8k Instruct

Gemma 3 12B is the stronger model overall, scoring 31.8 to 28.8 on the Noometry Index.

Last verified . 12 shared benchmarks.

Gemma 3 12B Google

31.8

Rank #255 Confirmed

Phi 3 Small 8k Instruct Microsoft

28.8

Rank #310 Confirmed

Summary

  • They share 12 benchmarks with published results for both. Gemma 3 12B scores higher in 6 categories and Phi 3 Small 8k Instruct in 2 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in multilingual, where Gemma 3 12B leads 45.9 to 28.6.

Side by side

Gemma 3 12B and Phi 3 Small 8k Instruct specifications
Gemma 3 12BPhi 3 Small 8k Instruct
ProviderGoogleMicrosoft
Noometry Index31.828.8
Released2025-03-122024-04-23
WeightsOpenOpen
Context window131K—
Max output8K—
Input $ / M tokens$0.05—
Output $ / M tokens$0.15—
Results tracked2432

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Category by category

Coding Gemma 3 12B leads

Gemma 3 12B: 31.2 (#276), Phi 3 Small 8k Instruct: 27.4 (#313)

Coding benchmarks
BenchmarkGemma 3 12BPhi 3 Small 8k Instruct
LMArena Coding12811102
SciCode17.4%—
LiveBench Coding—20.3%

Agentic & Tool Use Not comparable

Gemma 3 12B: 25.3 (#101), Phi 3 Small 8k Instruct: —

Agentic & Tool Use benchmarks
BenchmarkGemma 3 12BPhi 3 Small 8k Instruct
Berkeley Function Calling Leaderboard30.4%—

Reasoning Gemma 3 12B leads

Gemma 3 12B: 15.2 (#307), Phi 3 Small 8k Instruct: 14.2 (#319)

Reasoning benchmarks
BenchmarkGemma 3 12BPhi 3 Small 8k Instruct
LMArena Hard Prompts13091100
CritPt0%—
Chess Puzzles0%—
LiveBench Reasoning—15.9%
DTBench48.8%—
LiveBench Data Analysis—30.3%
LMCA4.5%—
Adversarial NLI—58.1%
BIG-Bench Hard—79.1%
Epoch Capabilities Index123.49—
HellaSwag—77%
LiveBench—24%
WinoGrande—81.5%

Math Phi 3 Small 8k Instruct leads

Gemma 3 12B: 21.0 (#273), Phi 3 Small 8k Instruct: 25.4 (#247)

Math benchmarks
BenchmarkGemma 3 12BPhi 3 Small 8k Instruct
LMArena Math13071151
OTIS Mock AIME 2024-202516.7%—
LiveBench Math—17.6%

Knowledge Phi 3 Small 8k Instruct leads

Gemma 3 12B: 26.5 (#250), Phi 3 Small 8k Instruct: 28.5 (#237)

Knowledge benchmarks
BenchmarkGemma 3 12BPhi 3 Small 8k Instruct
LMArena Expert12481067
GPQA Diamond39.5%—
Vectara Hallucination Rate4.4%—
ARC (AI2) Challenge—90.7%
MMLU—75.7%
OpenBookQA—88%
TriviaQA—58.1%

Multimodal Not comparable

Gemma 3 12B: —, Phi 3 Small 8k Instruct: —

Multimodal benchmarks
BenchmarkGemma 3 12BPhi 3 Small 8k Instruct
MindCube46.7%—

Multilingual Gemma 3 12B leads

Gemma 3 12B: 45.9 (#160), Phi 3 Small 8k Instruct: 28.6 (#267)

Multilingual benchmarks
BenchmarkGemma 3 12BPhi 3 Small 8k Instruct
LMArena Non-English13181058
LMArena German13701080
LMArena Russian13351111
LMArena Chinese—1061
LMArena French—1134
LMArena Japanese—966
LMArena Korean—894
LMArena Spanish—1111

Instruction Following Gemma 3 12B leads

Gemma 3 12B: 68.8 (#179), Phi 3 Small 8k Instruct: 52.2 (#287)

Instruction Following benchmarks
BenchmarkGemma 3 12BPhi 3 Small 8k Instruct
LMArena Instruction Following12991087
LiveBench Instruction Following—47.2%

Long Context Gemma 3 12B leads

Gemma 3 12B: 40.0 (#157), Phi 3 Small 8k Instruct: 33.0 (#262)

Long Context benchmarks
BenchmarkGemma 3 12BPhi 3 Small 8k Instruct
LMArena Longer Query13171088

Writing & Preference Gemma 3 12B leads

Gemma 3 12B: 47.7 (#205), Phi 3 Small 8k Instruct: 31.3 (#279)

Writing & Preference benchmarks
BenchmarkGemma 3 12BPhi 3 Small 8k Instruct
LMArena Text13341110
LMArena Creative Writing13311083
LMArena Multi-Turn13341068
EQ-Bench Creative Writing1126—
LiveBench Language—12.9%

Frequently asked questions

Is Gemma 3 12B better than Phi 3 Small 8k Instruct?

Gemma 3 12B is the stronger model overall, scoring 31.8 to 28.8 on the Noometry Index.

Is Gemma 3 12B or Phi 3 Small 8k Instruct better for coding?

Gemma 3 12B scores higher on coding benchmarks: 31.2 versus 27.4 in the Noometry coding category.

How many benchmarks do Gemma 3 12B and Phi 3 Small 8k Instruct share?

12 benchmarks have published results for both models. Gemma 3 12B has 24 scored results on Noometry and Phi 3 Small 8k Instruct has 32.

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