MoonshotAI: Kimi K3 vs xAI: Grok 4.5
MoonshotAI: Kimi K3 wins on more metrics (4 of 6), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | MoonshotAI: Kimi K3 | xAI: Grok 4.5 |
|---|---|---|
| Intelligence Index | 57.1✓ | 53.8 |
| Coding Index | 76.2✓ | 72.4 |
| GPQA Diamond | 94%✓ | 93% |
| Design Arena Elo | — | — |
| Speed (tokens/sec) | — | — |
| Latency | — | — |
| Input price /M | $3.00 | $2.00✓ |
| Output price /M | $15.00 | $6.00✓ |
| Context window | 1.0M✓ | 500K |
| Capabilities | ReasoningToolsJSONVision | ReasoningToolsJSONVision |