MoonshotAI: Kimi K3 vs OpenAI: GPT-5.4
OpenAI: GPT-5.4 wins on more metrics (5 of 8), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | MoonshotAI: Kimi K3 | OpenAI: GPT-5.4 |
|---|---|---|
| Intelligence Index | 57.1✓ | 51.4 |
| Coding Index | 76.2✓ | 71.1 |
| GPQA Diamond | 94%✓ | 92% |
| Design Arena Elo | — | 1233✓ |
| Speed (tokens/sec) | — | 74✓ |
| Latency | — | 956ms✓ |
| Input price /M | $3.00 | $2.50✓ |
| Output price /M | $15.00 | $15.00 |
| Context window | 1.0M | 1.1M✓ |
| Capabilities | ReasoningToolsJSONVision | ReasoningToolsJSONVision |