head-to-head
Google: Gemini 3.5 Flash Lite (batch) vs OpenAI: GPT-5.6 Luna Pro
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-23.
| Google: Gemini 3.5 Flash Lite (batch) | OpenAI: GPT-5.6 Luna Pro | |
|---|---|---|
| Vendor | openai | |
| Quality Score | 100 | 100 |
| Benchmark Score | 34.2 | - |
| Input Price | $0.15/M | $0.20/M |
| Output Price | $1.25/M | $1.20/M |
| Context Window | 1,048,576 | 1,050,000 |
| Max Output | 65,536 | 128,000 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | ✓ | - |
| Benchmark Scores | ||
| ai_index | 36.6 | - |
Who wins by task?
| Task | Google: Gemini 3.5 Flash Lite (batch) | OpenAI: GPT-5.6 Luna Pro |
|---|---|---|
| SQL Generation | 138 | 133 |
| Code Review | 139 | 132 |
| Code Completion | 132 | 131 |
| Code Refactoring | 141 | 136 |
| Bug Fixing | 143 | 136 |
| Unit Test Generation | 128 | 124 |
| Code Documentation | 135 | 131 |
| Regex Writing | 123 | 119 |
| CI/CD Pipelines | 124 | 120 |
| Frontend Component Design | 126 | 122 |
| Data Analysis | 129 | 124 |
| CSV / Spreadsheet Cleanup | 135 | 133 |
| ETL Scripting | 133 | 128 |
| OCR / Document Parsing | 132 | 131 |
| Table Extraction from PDFs | 132 | 131 |
| Long-Document Summarization | 143 | 137 |
| Short-Form Summarization | 125 | 123 |
| Blog Post Writing | 126 | 121 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →
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