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Google: Gemini 3.7 Flash (batch) vs OpenAI: GPT-5.6 Luna (batch)

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-08-14.

Google: Gemini 3.7 Flash (batch) OpenAI: GPT-5.6 Luna (batch)
Vendorgoogleopenai
Quality Score100100
Benchmark Score89.788.2
Input Price$0.19/M$0.10/M
Output Price$0.94/M$0.60/M
Context Window1,048,5761,050,000
Max Output65,536128,000
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio✓-
Benchmark Scores
ai_index92.486.3
ai_index_agentic74.477.4
ai_index_coding100.0100.0

Who wins by task?

TaskGoogle: Gemini 3.7 Flash (batch)OpenAI: GPT-5.6 Luna (batch)
SQL Generation 172 172
Code Review 168 167
Code Refactoring 165 164
Bug Fixing 181 180
Unit Test Generation 155 154
Code Documentation 144 143
Regex Writing 137 137
CI/CD Pipelines 145 144
Frontend Component Design 147 146
Data Analysis 171 171
CSV / Spreadsheet Cleanup 154 154
ETL Scripting 155 154
JSON Extraction 149 149
Bulk Data Labeling 135 135
OCR / Document Parsing 147 146
Table Extraction from PDFs 147 146
Long-Document Summarization 161 160
Short-Form Summarization 132 132
Blog Post Writing 141 140

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

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