MoonshotAI: Kimi K2.5 wins on more metrics (7 of 9), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | Anthropic: Claude Sonnet 4.5 | MoonshotAI: Kimi K2.5 |
|---|---|---|
| Intelligence Index | 37.1 | 37.3✓ |
| Coding Index | 33.5✓ | 25.8 |
| GPQA Diamond | 73% | 79%✓ |
| Design Arena Elo | 1242 | 1293✓ |
| Speed (tokens/sec) | 38 | 89✓ |
| Latency | 985ms | 211ms✓ |
| Input price /M | $3.00 | $0.375✓ |
| Output price /M | $15.00 | $2.02✓ |
| Context window | 1M✓ | 262K |
| Capabilities | ReasoningToolsJSONVision | ReasoningToolsJSONVision |