MoonshotAI: Kimi K2.7 Code wins on more metrics (5 of 9), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | MoonshotAI: Kimi K2.7 Code | OpenAI: GPT-5.4 Nano |
|---|---|---|
| Intelligence Index | 41.9✓ | 38.2 |
| Coding Index | 45.6✓ | 43.9 |
| GPQA Diamond | 90%✓ | 82% |
| Design Arena Elo | 1335✓ | — |
| Speed (tokens/sec) | 107✓ | 68 |
| Latency | 572ms | 458ms✓ |
| Input price /M | $0.740 | $0.200✓ |
| Output price /M | $3.50 | $1.25✓ |
| Context window | 262K | 400K✓ |
| Capabilities | ReasoningToolsJSONVision | ReasoningToolsJSONVision |