Anthropic: Claude Sonnet 5 vs MoonshotAI: Kimi K3
MoonshotAI: Kimi K3 wins on more metrics (4 of 7), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | Anthropic: Claude Sonnet 5 | MoonshotAI: Kimi K3 |
|---|---|---|
| Intelligence Index | 53.4 | 57.1✓ |
| Coding Index | 71.5 | 76.2✓ |
| GPQA Diamond | 91% | 94%✓ |
| Design Arena Elo | 1246✓ | — |
| Speed (tokens/sec) | — | — |
| Latency | — | — |
| Input price /M | $2.00✓ | $3.00 |
| Output price /M | $10.00✓ | $15.00 |
| Context window | 1M | 1.0M✓ |
| Capabilities | ReasoningToolsJSONVision | ReasoningToolsJSONVision |