MoonshotAI: Kimi K3 vs OpenAI: GPT-5.6 Sol
OpenAI: GPT-5.6 Sol wins on more metrics (7 of 9), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | MoonshotAI: Kimi K3 | OpenAI: GPT-5.6 Sol |
|---|---|---|
| Intelligence Index | 57.1 | 58.9✓ |
| Coding Index | 76.2 | 77.4✓ |
| GPQA Diamond | 94% | 94%✓ |
| Design Arena Elo | — | 1364✓ |
| Speed (tokens/sec) | — | 80✓ |
| Latency | — | 4.3s✓ |
| Input price /M | $3.00✓ | $5.00 |
| Output price /M | $15.00✓ | $30.00 |
| Context window | 1.0M | 1.1M✓ |
| Capabilities | ReasoningToolsJSONVision | ReasoningToolsJSONVision |