head-to-head
Google: Gemini 3.5 Flash vs Google: Gemini 3.1 Flash Lite
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-23.
| Google: Gemini 3.5 Flash | Google: Gemini 3.1 Flash Lite | |
|---|---|---|
| Vendor | ||
| Quality Score | 100 | 100 |
| Benchmark Score | 53.5 | - |
| Input Price | $1.50/M | $0.25/M |
| Output Price | $9.00/M | $1.50/M |
| Context Window | 1,048,576 | 1,048,576 |
| Max Output | 65,536 | 65,536 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | ✓ | ✓ |
| Benchmark Scores | ||
| ai_index | 53.8 | - |
Who wins by task?
| Task | Google: Gemini 3.5 Flash | Google: Gemini 3.1 Flash Lite |
|---|---|---|
| SQL Generation | 139 | 133 |
| Code Review | 142 | 132 |
| Code Completion | 119 | 131 |
| Code Refactoring | 144 | 136 |
| Bug Fixing | 146 | 136 |
| Unit Test Generation | 130 | 124 |
| Code Documentation | 134 | 131 |
| Regex Writing | 123 | 119 |
| CI/CD Pipelines | 126 | 120 |
| Frontend Component Design | 128 | 122 |
| Data Analysis | 132 | 124 |
| CSV / Spreadsheet Cleanup | 135 | 133 |
| ETL Scripting | 135 | 128 |
| JSON Extraction | 121 | 131 |
| Bulk Data Labeling | 118 | 129 |
| OCR / Document Parsing | 133 | 131 |
| Table Extraction from PDFs | 133 | 131 |
| Long-Document Summarization | 145 | 137 |
| Short-Form Summarization | 116 | 123 |
| Blog Post Writing | 127 | 121 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →
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