head-to-head

Google: Gemini 3.1 Flash Lite (batch) vs OpenAI: GPT-5.5 (batch)

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-07-29.

	Google: Gemini 3.1 Flash Lite (batch)	OpenAI: GPT-5.5 (batch)
Vendor	google	openai
Quality Score	100	100
Benchmark Score	-	92.6
Input Price	$0.12/M	$2.50/M
Output Price	$0.75/M	$15.00/M
Context Window	1,048,576	1,050,000
Max Output	65,536	128,000
Tool Calling	✓	✓
Structured Output	✓	✓
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	✓	-
Benchmark Scores
ai_index	-	90.5
ai_index_agentic	-	74.0
ai_index_coding	-	100.0
eqbench	-	82.4

Who wins by task?

Task	Google: Gemini 3.1 Flash Lite (batch)	OpenAI: GPT-5.5 (batch)
SQL Generation	133	176
Code Review	132	177
Code Completion	131	120
Code Refactoring	136	175
Bug Fixing	136	190
Unit Test Generation	124	160
Code Documentation	131	147
Regex Writing	119	137
CI/CD Pipelines	120	150
Frontend Component Design	122	150
Data Analysis	124	175
CSV / Spreadsheet Cleanup	133	158
ETL Scripting	128	163
JSON Extraction	131	137
Bulk Data Labeling	129	122
OCR / Document Parsing	131	149
Table Extraction from PDFs	131	149
Long-Document Summarization	137	169
Short-Form Summarization	123	122
Blog Post Writing	121	145

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