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

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-08-18.

OpenAI: GPT-5.6 Luna Pro (batch) OpenAI: GPT-5.6 Sol
Vendoropenaiopenai
Quality Score100100
Benchmark Score-99.3
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_index-100.0
ai_index_agentic-95.3
ai_index_coding-100.0

Who wins by task?

TaskOpenAI: GPT-5.6 Luna Pro (batch)OpenAI: GPT-5.6 Sol
SQL Generation 133 174
Code Review 132 171
Code Completion 131 118
Code Refactoring 136 167
Bug Fixing 136 187
Unit Test Generation 124 157
Code Documentation 131 142
Regex Writing 119 136
CI/CD Pipelines 120 147
Frontend Component Design 122 149
Data Analysis 124 177
CSV / Spreadsheet Cleanup 133 154
ETL Scripting 128 157
JSON Extraction 131 138
Bulk Data Labeling 129 122
OCR / Document Parsing 131 147
Table Extraction from PDFs 131 147
Long-Document Summarization 137 162
Short-Form Summarization 123 122
Blog Post Writing 121 142

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

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