head-to-head

Google: Gemma 4 31B (free) vs Google: Gemini 3.1 Pro Preview

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-23.

Who wins by task?

Task	Google: Gemma 4 31B (free)	Google: Gemini 3.1 Pro Preview
SQL Generation	140	143
Code Review	140	150
Code Completion	132	120
Code Refactoring	141	153
Bug Fixing	144	154
Unit Test Generation	130	135
Code Documentation	135	139
Regex Writing	126	125
CI/CD Pipelines	126	131
Frontend Component Design	128	130
Data Analysis	132	135
CSV / Spreadsheet Cleanup	134	139
ETL Scripting	133	142
JSON Extraction	132	121
Bulk Data Labeling	130	117
OCR / Document Parsing	131	135
Table Extraction from PDFs	131	135
Long-Document Summarization	143	154
Short-Form Summarization	127	117
Blog Post Writing	128	131

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