Google: Gemini 3.5 Flash vs xAI: Grok 4.5
xAI: Grok 4.5 wins on more metrics (5 of 9), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | Google: Gemini 3.5 Flash | xAI: Grok 4.5 |
|---|---|---|
| Intelligence Index | 50.2 | 53.8✓ |
| Coding Index | 70.1 | 72.4✓ |
| GPQA Diamond | 92% | 93%✓ |
| Design Arena Elo | 1313✓ | — |
| Speed (tokens/sec) | 177✓ | 74 |
| Latency | 1.2s | 655ms✓ |
| Input price /M | $1.50✓ | $2.00 |
| Output price /M | $9.00 | $6.00✓ |
| Context window | 1.0M✓ | 500K |
| Capabilities | ReasoningToolsJSONVisionAudio | ReasoningToolsJSONVision |