head-to-head

Google: Gemini 3.6 Flash vs OpenAI: GPT-5.6 Luna Pro (batch)

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

Who wins by task?

Task	Google: Gemini 3.6 Flash	OpenAI: GPT-5.6 Luna Pro (batch)
SQL Generation	140	133
Code Review	142	132
Code Completion	132	131
Code Refactoring	145	136
Bug Fixing	146	136
Unit Test Generation	130	124
Code Documentation	136	131
Regex Writing	124	119
CI/CD Pipelines	126	120
Frontend Component Design	128	122
Data Analysis	132	124
CSV / Spreadsheet Cleanup	135	133
ETL Scripting	135	128
JSON Extraction	131	131
Bulk Data Labeling	128	129
OCR / Document Parsing	133	131
Table Extraction from PDFs	133	131
Long-Document Summarization	146	137
Short-Form Summarization	125	123
Blog Post Writing	128	121

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