Google: Gemini 3.1 Pro Preview and xAI: Grok 4.5 are evenly matched; the right pick depends on your priorities.
| Metric | Google: Gemini 3.1 Pro Preview | xAI: Grok 4.5 |
|---|---|---|
| Intelligence Index | 46.5 | 53.8✓ |
| Coding Index | 68.8 | 72.4✓ |
| GPQA Diamond | 94%✓ | 93% |
| Design Arena Elo | 1347✓ | — |
| Speed (tokens/sec) | 101✓ | 74 |
| Latency | 2.9s | 655ms✓ |
| Input price /M | $2.00 | $2.00 |
| Output price /M | $12.00 | $6.00✓ |
| Context window | 1.0M✓ | 500K |
| Capabilities | ReasoningToolsJSONVisionAudio | ReasoningToolsJSONVision |