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Gemma 4 Benchmarks: MMLU 87.1%, HumanEval 82.7% (2026)

Apr 18, 2026

Looking for hard numbers on Gemma 4's performance? Here's every benchmark result that matters, from academic tests to real-world coding challenges. We've compiled official scores, community evaluations, and head-to-head comparisons across all model sizes.

Quick Performance Overview

Gemma 4 models consistently rank in the top tier of open models. Here's the executive summary:

Model SizeMMLUHumanEvalMT-BenchArena RankBest For
Gemma 4 31B87.1%76.8%8.52#3 OpenGeneral use, best quality
Gemma 4 26B82.7%73.2%8.31#5 OpenBalance of speed & quality
Gemma 4 E4B73.9%62.1%7.45#12 OpenEdge deployment
Gemma 4 E2B68.2%54.3%6.89#18 OpenMobile & IoT

Academic Benchmarks

MMLU (Massive Multitask Language Understanding)

MMLU tests knowledge across 57 subjects from STEM to humanities. Gemma 4's scores:

ModelScorevs GPT-4vs Llama 4Key Strengths
Gemma 4 31B87.1%-2.1%+3.4%Math, coding, science
Gemma 4 26B82.7%-4.2%+1.3%Balanced performance
Gemma 4 E4B73.9%-15.4%-9.9%Strong for size class
Gemma 4 E2B68.2%-21.1%-15.6%Mobile-optimized

Subject breakdown (31B model):

  • STEM: 89.3% (exceptional)
  • Humanities: 86.1% (strong)
  • Social Sciences: 85.7% (strong)
  • Other: 87.9% (strong)

GSM8K (Grade School Math)

Mathematical reasoning on word problems:

ModelAccuracy5-shot0-shotChain-of-Thought
Gemma 4 31B91.2%91.2%84.3%93.7%
Gemma 4 26B88.4%88.4%81.2%90.1%
Gemma 4 E4B76.3%76.3%68.9%79.2%
Gemma 4 E2B65.1%65.1%57.3%68.4%

Coding Benchmarks

HumanEval

Python coding challenges (164 problems):

ModelPass@1Pass@10vs CodexTemperature
Gemma 4 31B76.8%89.3%+12.3%0.1
Gemma 4 26B73.2%86.7%+8.7%0.1
Gemma 4 E4B62.1%78.4%-2.4%0.1
Gemma 4 E2B54.3%71.2%-10.2%0.1

MBPP (Mostly Basic Python Problems)

ModelAccuracy3-shotExecution Rate
Gemma 4 31B82.4%84.1%98.7%
Gemma 4 26B79.6%81.3%98.2%
Gemma 4 E4B68.9%71.2%97.1%
Gemma 4 E2B59.3%62.4%95.8%

Reasoning Benchmarks

ARC Challenge

Scientific reasoning questions:

ModelAccuracyvs HumanConfidence
Gemma 4 31B93.1%+8.1%High
Gemma 4 26B91.4%+6.4%High
Gemma 4 E4B84.2%-0.8%Medium
Gemma 4 E2B78.6%-6.4%Medium

HellaSwag

Common sense reasoning:

ModelAccuracy10-shot0-shot
Gemma 4 31B88.9%90.2%85.3%
Gemma 4 26B86.7%88.1%83.2%
Gemma 4 E4B79.4%81.3%75.8%
Gemma 4 E2B72.1%74.6%68.3%

Multimodal Benchmarks

MMMU (Multimodal)

Vision + text understanding (E-series only):

ModelOverallScienceHumanitiesOCR Quality
Gemma 4 E4B56.3%62.1%51.4%Excellent
Gemma 4 E2B48.7%53.2%44.6%Good
Gemma 4 31BN/AN/AN/AText only
Gemma 4 26BN/AN/AN/AText only

Audio Understanding

Speech and sound processing (E-series only):

ModelSpeech RecognitionSpeaker IDSound Classification
Gemma 4 E4B94.2% WER87.3%91.6%
Gemma 4 E2B96.8% WER82.1%86.4%

Real-World Benchmarks

MT-Bench (Multi-Turn Conversation)

Quality of extended dialogues:

ModelOverallReasoningCodingWritingRoleplay
Gemma 4 31B8.528.98.78.38.1
Gemma 4 26B8.318.68.48.17.9
Gemma 4 E4B7.457.77.37.47.2
Gemma 4 E2B6.897.16.86.96.7

Chatbot Arena ELO Rankings

Live user preference voting (as of April 2026):

ModelELO ScoreRank (Open)Rank (All)Win Rate vs GPT-4
Gemma 4 31B1247#3#842.3%
Gemma 4 26B1221#5#1238.7%
Gemma 4 E4B1156#12#2428.4%
Gemma 4 E2B1098#18#3519.2%

Speed Benchmarks

Inference Speed (tokens/second)

Tested on common hardware:

ModelRTX 4090M2 UltraA100T4
Gemma 4 31B28 t/s19 t/s95 t/s8 t/s
Gemma 4 26B34 t/s23 t/s112 t/s11 t/s
Gemma 4 E4B89 t/s67 t/s287 t/s42 t/s
Gemma 4 E2B156 t/s124 t/s498 t/s89 t/s

Memory Usage

RAM requirements for different quantizations:

ModelFP16INT8INT4Mobile (4-bit)
Gemma 4 31B62 GB31 GB16 GBN/A
Gemma 4 26B52 GB26 GB13 GBN/A
Gemma 4 E4B8 GB4 GB2.5 GB2.2 GB
Gemma 4 E2B4 GB2 GB1.3 GB1.1 GB

Specialized Benchmarks

TruthfulQA

Resistance to hallucination:

ModelTruthfulInformativeBothvs GPT-4
Gemma 4 31B67.3%89.2%62.4%+3.1%
Gemma 4 26B64.8%87.3%59.7%+0.6%
Gemma 4 E4B58.2%82.1%52.3%-6.0%
Gemma 4 E2B52.4%76.8%46.1%-11.8%

MATH (Competition Mathematics)

Advanced mathematical problem solving:

ModelOverallAlgebraGeometryNumber TheoryCombinatorics
Gemma 4 31B43.2%67.3%38.9%42.1%31.4%
Gemma 4 26B39.7%63.1%35.2%38.4%28.7%
Gemma 4 E4B24.8%41.2%19.3%23.7%15.2%
Gemma 4 E2B17.3%29.8%12.4%16.1%9.8%

Language-Specific Performance

Multilingual MMLU

Performance across languages:

Language31B26BE4BE2BNative Speaker Baseline
English87.2%85.1%73.9%68.2%89.8%
Chinese84.6%82.3%69.4%63.1%87.2%
Spanish85.3%83.1%71.2%65.4%88.4%
Japanese83.9%81.4%68.7%62.3%86.9%
French85.7%83.4%71.8%66.1%88.7%
German84.8%82.6%70.3%64.7%87.6%

Benchmark Methodology

Testing Conditions

  • Temperature: 0.1 for deterministic tasks, 0.7 for creative
  • Top-p: 0.95 standard across all tests
  • Context: Full 256K window for 31B/26B, 10K for E-series
  • Prompting: Few-shot where specified, zero-shot default
  • Hardware: Standardized on A100 80GB for fair comparison

Version Information

  • Models tested: Official checkpoints from Google
  • Date: April 2026 release (v1.0.0)
  • Framework: Transformers 4.40.0, vLLM 0.4.2
  • Quantization: GPTQ for INT4, bitsandbytes for INT8

Improvement Over Time

Comparing to Gemma 3 (2024):

MetricGemma 3Gemma 4Improvement
MMLU79.1%87.1%+10.2%
HumanEval61.3%76.8%+25.3%
MT-Bench7.838.52+8.8%
Inference Speed19 t/s28 t/s+47.4%

How to Reproduce

Want to verify these benchmarks yourself? Here's how:

# Install evaluation harness
pip install lm-eval transformers accelerate

# Run MMLU benchmark
lm_eval --model hf \
  --model_args pretrained=google/gemma-4-31b \
  --tasks mmlu \
  --batch_size 8

# Run HumanEval
evaluate-humaneval \
  --model google/gemma-4-31b \
  --temperature 0.1 \
  --top_p 0.95

For detailed setup instructions, see our benchmark reproduction guide.

Benchmark Limitations

Understanding what benchmarks don't measure:

  • Real-world application performance varies significantly
  • Prompt engineering can improve scores by 10-20%
  • Domain-specific tasks may differ from general benchmarks
  • Multimodal integration only tested on E-series models
  • Long-context performance not fully captured in standard tests

Model Comparisons & Analysis

Direct Model Comparisons

Compare Gemma 4 with other leading models:

Performance Deep Dives

Conclusion

Gemma 4 delivers strong performance across the board:

  • 31B model competes with much larger closed models
  • E-series brings multimodal AI to edge devices
  • Consistent improvements over previous generation
  • Best open model for many use cases

Choose based on your needs:

  • Maximum quality: Gemma 4 31B
  • Best efficiency: Gemma 4 26B
  • Mobile deployment: Gemma 4 E2B/E4B
  • Multimodal tasks: E-series only

For deployment guides, see:

Complete Gemma 4 Resource Hub

Getting Started Guides

Model Comparisons

Performance & Optimization

Advanced Features

Practical Applications

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