Google: Gemini 3.1 Pro Preview wins on more metrics (5 of 8), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | Anthropic: Claude Sonnet 4.6 | Google: Gemini 3.1 Pro Preview |
|---|---|---|
| Intelligence Index | — | — |
| Coding Index | 43.0✓ | 39.4 |
| GPQA Diamond | 80% | 89%✓ |
| Design Arena Elo | 1327 | 1346✓ |
| Speed (tokens/sec) | 46✓ | — |
| Latency | 1.2s✓ | — |
| Input price /M | $3.00 | $2.00✓ |
| Output price /M | $15.00 | $12.00✓ |
| Context window | 1M | 1.0M✓ |
| Capabilities | ReasoningToolsJSONVision | ReasoningToolsJSONVisionAudio |