head-to-head
Anthropic: Claude Sonnet Latest vs Google: Gemini 3.1 Pro Preview Custom Tools
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-23.
| Anthropic: Claude Sonnet Latest | Google: Gemini 3.1 Pro Preview Custom Tools | |
|---|---|---|
| Vendor | ~anthropic | |
| Quality Score | 100 | 100 |
| Input Price | $2.00/M | $2.00/M |
| Output Price | $10.00/M | $12.00/M |
| Context Window | 1,000,000 | 1,048,576 |
| Max Output | 128,000 | 65,536 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | ✓ |
Who wins by task?
| Task | Anthropic: Claude Sonnet Latest | Google: Gemini 3.1 Pro Preview Custom Tools |
|---|---|---|
| SQL Generation | 132 | 132 |
| Code Completion | 117 | 117 |
| Code Documentation | 129 | 129 |
| Regex Writing | 117 | 117 |
| CSV / Spreadsheet Cleanup | 132 | 132 |
| JSON Extraction | 121 | 121 |
| Bulk Data Labeling | 118 | 117 |
| Long-Document Summarization | 136 | 136 |
| Short-Form Summarization | 113 | 113 |
| Blog Post Writing | 120 | 120 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →
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