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OpenAI: GPT-5.6 Luna (batch) vs OpenAI: GPT-5.6 Sol (batch)

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-08-13.

OpenAI: GPT-5.6 Luna (batch) OpenAI: GPT-5.6 Sol (batch)
Vendoropenaiopenai
Quality Score100100
Benchmark Score88.299.3
Input Price$0.10/M$2.50/M
Output Price$0.60/M$15.00/M
Context Window1,050,0001,050,000
Max Output128,000128,000
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--
Benchmark Scores
ai_index86.3100.0
ai_index_agentic77.495.3
ai_index_coding100.0100.0

Who wins by task?

TaskOpenAI: GPT-5.6 Luna (batch)OpenAI: GPT-5.6 Sol (batch)
SQL Generation 172 174
Code Review 167 171
Code Completion 133 118
Code Refactoring 164 167
Bug Fixing 180 187
Unit Test Generation 154 157
Code Documentation 143 142
Regex Writing 137 136
CI/CD Pipelines 144 147
Frontend Component Design 146 149
Data Analysis 171 177
CSV / Spreadsheet Cleanup 154 154
ETL Scripting 154 157
JSON Extraction 149 138
Bulk Data Labeling 135 122
OCR / Document Parsing 146 147
Table Extraction from PDFs 146 147
Long-Document Summarization 160 162
Short-Form Summarization 132 122
Blog Post Writing 140 142

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

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