head-to-head

Google: Gemma 4 31B vs Google: Gemini 3.1 Flash Lite Preview

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-06-20.

	Google: Gemma 4 31B	Google: Gemini 3.1 Flash Lite Preview
Vendor	google	google
Quality Score	100	100
Benchmark Score	56.4	-
Input Price	$0.12/M	$0.25/M
Output Price	$0.35/M	$1.50/M
Context Window	262,144	1,048,576
Max Output	262,144	65,536
Tool Calling	✓	✓
Structured Output	✓	✓
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	-	✓
Benchmark Scores
ai_index	48.4	-
ai_index_agentic	23.8	-
ai_index_coding	71.7	-
eqbench	70.8	-

Who wins by task?

Task	Google: Gemma 4 31B	Google: Gemini 3.1 Flash Lite Preview
SQL Generation	157	133
Code Review	154	132
Code Completion	132	131
Code Refactoring	152	136
Bug Fixing	161	136
Unit Test Generation	143	124
Code Documentation	138	131
Regex Writing	131	119
CI/CD Pipelines	136	120
Frontend Component Design	138	122
Data Analysis	152	124
CSV / Spreadsheet Cleanup	146	133
ETL Scripting	144	128
JSON Extraction	143	131
Bulk Data Labeling	133	129
OCR / Document Parsing	140	131
Table Extraction from PDFs	140	131
Long-Document Summarization	150	137
Short-Form Summarization	129	123
Blog Post Writing	134	121

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