head-to-head

OpenAI: GPT-5.6 Luna vs Google Gemini Flash Latest

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-07-11.

OpenAI: GPT-5.6 Luna Google Gemini Flash Latest
Vendoropenai~google
Quality Score100100
Benchmark Score89.4-
Input Price$1.00/M$1.50/M
Output Price$6.00/M$9.00/M
Context Window1,050,0001,048,576
Max Output128,00065,536
Tool Calling
Structured Output
Reasoning Mode
Vision
Audio-
Benchmark Scores
ai_index84.5-
ai_index_agentic75.2-
ai_index_coding100.0-

Who wins by task?

TaskOpenAI: GPT-5.6 LunaGoogle Gemini Flash Latest
SQL Generation 171 132
Code Review 166 132
Code Completion 120 117
Code Refactoring 163 136
Bug Fixing 179 136
Unit Test Generation 154 124
Code Documentation 142 129
Regex Writing 135 117
CI/CD Pipelines 144 120
Frontend Component Design 146 122
Data Analysis 170 124
CSV / Spreadsheet Cleanup 153 132
ETL Scripting 154 128
JSON Extraction 139 121
Bulk Data Labeling 125 118
OCR / Document Parsing 146 131
Table Extraction from PDFs 146 131
Long-Document Summarization 159 136
Short-Form Summarization 123 113
Blog Post Writing 140 121

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

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