Google: Gemini 3.5 Flash wins on more metrics (6 of 9), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | Google: Gemini 3.5 Flash | xAI: Grok 4.3 |
|---|---|---|
| Intelligence Index | 54.8✓ | 53.2 |
| Coding Index | 43.9✓ | 41.0 |
| GPQA Diamond | 92%✓ | 90% |
| Design Arena Elo | 1329✓ | 1255 |
| Speed (tokens/sec) | 165✓ | 136 |
| Latency | 1.8s | 676ms✓ |
| Input price /M | $1.50 | $1.25✓ |
| Output price /M | $9.00 | $2.50✓ |
| Context window | 1.0M✓ | 1M |
| Capabilities | ReasoningToolsJSONVisionAudio | ReasoningToolsJSONVision |