xAI: Grok 4.3 wins on more metrics (5 of 7), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | NVIDIA: Nemotron 3 Ultra | xAI: Grok 4.3 |
|---|---|---|
| Intelligence Index | 47.7 | 48.8✓ |
| Coding Index | 37.6✓ | 35.1 |
| GPQA Diamond | 87% | 89%✓ |
| Design Arena Elo | 1223 | 1255✓ |
| Speed (tokens/sec) | 74 | 146✓ |
| Latency | 881ms | 754ms✓ |
| Input price /M | $0.500✓ | $1.25 |
| Output price /M | $2.50 | $2.50 |
| Context window | 1M | 1M |
| Capabilities | ReasoningToolsJSON | ReasoningToolsJSONVision |