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Google: Gemma 4 31B vs Google: Gemini 3.1 Pro Preview

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-04-29.

Google: Gemma 4 31B Google: Gemini 3.1 Pro Preview
Vendorgooglegoogle
Quality Score100100
Input Price$0.13/M$2.00/M
Output Price$0.38/M$12.00/M
Context Window262,1441,048,576
Max Output16,38465,536
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio-✓

Who wins by task?

TaskGoogle: Gemma 4 31BGoogle: Gemini 3.1 Pro Preview
SQL Generation 131 132
Code Review 126 132
Code Completion 129 117
Code Refactoring 127 136
Bug Fixing 130 136
Unit Test Generation 121 124
Code Documentation 126 129
Regex Writing 119 117
CI/CD Pipelines 117 120
CSV / Spreadsheet Cleanup 128 132
ETL Scripting 122 128
JSON Extraction 131 121
Bulk Data Labeling 129 117
OCR / Document Parsing 128 131
Table Extraction from PDFs 128 131
Long-Document Summarization 129 136
Short-Form Summarization 123 113
Blog Post Writing 119 120

Scores reflect capability match + benchmark data + pricing for each task. Methodology →

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